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Department Cleveland Clinic Lou Ruvo Center for Brain Health
Primary Location Lou Ruvo Center for Brain Health - Las Vegas
Type of Doctor Adults Only
Languages English
Surgeon No
Locations Specialties & Treatments

Treatment & Services

  • Alzheimer's
  • Consultation, Evaluation, And Treatment Adult Neurological Disorders
View all 2 Treatment & Services +

Specialty in Diseases & Conditions

  • Alzheimer's
  • Alzheimer's and Dementia
  • Cognitive Disorders
  • Dementia with Lewy Bodies
  • Encephalopathy
  • Frontotemporal Dementia (FTD)
  • Memory Loss
View all 7 Specialties +
Insurance

Insurance

Is Cleveland Clinic Nevada Part of Your Insurance?

For questions about accepted insurance plans for our Nevada locations and specific plan products including Medicare, please contact your insurance carrier directly.

View All Plans
Biography

About Aaron Ritter, MD

Aaron Ritter, MD, Associate Staff, Neuropsychiatry and Behavioral Neurology

Dr. Ritter initially joined the Cleveland Clinic Lou Ruvo Center for Brain Health in July 2014 as a clinical fellow in Behavioral Neurology and Neuropsychiatry. Dr. Ritter comes to Las Vegas from Tucson following completion of his internship (in pediatrics) and three year residency (in psychiatry) at the University of Arizona.

At the University of Arizona, Dr. Ritter was involved in research projects looking at the neurocircuitry of emotional disorders, the effect of hypothyroidism on mood states, and psychiatric presentations of neurodegenerative disorders. He received two research awards from the University of Arizona for his work on these projects. In addition, Dr. Ritter developed a strong interest in medical education. Following completion of his internship, he received a distinguished teaching award that recognized him as one of the top three “resident educators” out of a pool of more than 600 residents and fellows.

During his two year clinical fellowship at the Lou Ruvo Center for Brain Health, Dr. Ritter received further training in diagnosing and treating neurodegenerative disorders such as Alzheimer’s disease, frontotemporal dementia, dementia with Lewy bodies, and chronic traumatic encephalopathy.

Education & Professional Highlights

Education & Professional Highlights

Appointed
2016

Education & Fellowships

Fellowship - Cleveland Clinic Lou Ruvo Center for Brain Health
Behavioral Neurology and Neuropsychiatry
Las Vegas, NV USA
2016

Fellowship - Behavioral Neurology Neuropsychiatry

2016

Residency - University of Arizona Medical Center
Psychiatry
Tucson, AZ USA
2014

Residency - University of Arizona Medical Center
Pediatrics
Tucson, AZ USA
2011

Medical Education - University of Colorado School of Medicine
Denver, CO USA
2010

Undergraduate - University of Wisconsin
Madison, WI USA
2004

Additional Training

  • Fellowship in Behavioral Neurology and Neuropsychiatry

    Cleveland Clinic Lou Ruvo Center for Brain Health, Las Vegas NV

    7/2014-6/2016

    Residency in Psychiatry

    University of Arizona, Tucson, AZ

    7/2011-6/2014

    Internship

    University of Arizona, Tucson, AZ

    7/2010-6/2011

    Medical Degree

    University of Colorado School of Medicine, Denver, Colorado

    8/2006-6/2010

    Bachelor of Arts

    University of Wisconsin, Madison, Wisconsin

    9/2001-12/2004

    BOARD CERTIFICATIONS:

    2014-Present National Board of Medical Examiners

    2017-Present American Board of Psychiatry and Neurology (Psychiatry)

    2018-Present United Council of Neurological Subspecialties (Behavioral Neurology and Neuropsychiatry)

Professional Highlights

  • ORIGINAL PUBLICATIONS IN PEER REVIEWED JOURNALS

    1. Ritter A, Pillai JA, Treatment of Vascular Cognitive Impairment. Curr Treat Options Neurol. 2015 Aug;17(8):367.
    2. Ritter A, Cummings JL, Fluid Biomarkers in Clinical Trials of Alzheimer's Disease Therapeutics. Front Neurol. 2015 Aug 31;6:186.

    3. Ritter A, Banks SA, Hawley, N, Miller, J. The Association between Montreal Cognitive Assessment Memory Scores and Hippocampal Volume in a Neurodegenerative Disease Sample. Journal of Alzheimer’s Disease. 2017 June.

    4. Ritter A, Banks, SA, Leger, G, Miller, J, Neuropsychological testing in pathologically verified Alzheimer’s disease and frontotemporal dementia: How well do the Uniform Data Set measures differentiate between diseases? Alzheimer’s Disease and Associated Disorders. 2017 July.

    5. Cummings JC, Lee G, Mortsdorf T, Ritter A, Zhong K, Alzheimer’s disease drug development pipeline: 2017. Alzheimer’s and Dementia: Translational Research and Clinical Interventions. 2017 Sept.

    6. Cummings JRitter AZhong K. Clinical Trials for Disease-Modifying Therapies in Alzheimer's Disease: A Primer, Lessons Learned, and a Blueprint for the Future. J Alzheimer’s Dis. 2018
    7. Cummings JC, Lee G, Mortsdorf T, Ritter A, Zhong K, Alzheimer’s disease drug development pipeline: 2018. Alzheimer’s and Dementia: Translational Research and Clinical Interventions. 2018
    8. Ritter A, Miller JB, Cummings JC , Nance C , Neuroscience learning from longitudinal cohort studies of Alzheimer's disease: Lessons for disease-modifying drug programs and an introduction to the Center for Neurodegeneration and Translational Neuroscience.Alzheimer’s Dementia; Translational Research and Clinical Interventions. 2018 Jul
    9. Shan G, Banks S, Miller JB, Ritter A, Bernick C, Lombardo J, Cummings JC, Statistical advances in clinical trials and clinical research. Alzheimer’s Dement (N Y). 2018
    10. Nance C, Ritter A, Miller JB, Lapin B, Banks SJ, The Pathology of Rapid Cognitive Decline in Clinically Diagnosed Alzheimer's DiseaseJ Alzheimer’s Dis. 2019 Jul 8
    11. Cummings J, Lee G, Ritter A, Sabbagh M, Zhong K. Alzheimer's disease drug development pipeline: 2019. Alzheimer’s Dement (N Y). 2019 Jul 9
    12. ummings, J., Ritter, A, Rothenberg, K., Advances in Management of Neuropsychiatric Syndromes in Neurodegenerative DiseasesCurrent Psychiatry Reports. 2019 Aug.
    13. Mishra VR, Sreenivasan KR, Yang Z, Zhuang X, Cordes D, Mari Z, Litvan I, Fernandez HH, Eidelberg D, Ritter A, Cummings JL, Walsh RR. Unique white matter structural connectivity in early-stage, drug-naive Parkinson disease. Neurology. 2019 Dec.
    14. Decourt B, Wilson J, Ritter A, et al. MCLENA-1: A Phase II Clinical Trial for the Assessment of Safety, Tolerability, and Efficacy of Lenalidomide in Patients with Mild Cognitive Impairment Due to Alzheimer's Disease. Open Access J Clin Trials. 2020;12:1-13. doi:10.2147/oajct.s221914

    BOOK CHAPTERS:

    1. Ritter A., and Cummings J (2016), Fluid Biomarkers in Clinical Trials of Alzheimer’s Disease Therapeutics. Biomarkers of Alzheimer’s Disease: The Present and the Future. Frontiers Research Topics.
    2. Ritter A., and Pillai J, (2017). Vascular Cognitive Impairment. Neurogeriatrics. Springer Publishing.

    PUBLISHED ABSTRACTS/POSTERS:

    1. Ritter A, Taylor E. Neurocircuitry to Explain Neuropsychiatric Symptoms. Poster Presentation at American Neuropsychiatric Association Annual Conference, Boston, MA 2014.
    2. Ritter A, Frontal Lobe Syndrome in a Patient Thirty Years Following Anterior Cingulotomy. Poster Presentation at University of Arizona Research Symposium, Tucson, Arizona 2014.

    3. Ritter A, Revisiting Myxedema Madness: A Case Report, Review of the Literature, and Proposed Pathophysiology. The Journal of Neuropsychiatry and Clinical Neurosciences. APPI-JN-14-09-0222.R1. Poster Presentation at American Neuropsychiatric Association Annual Conference, Orlando FL, 2015.

    4. Ritter, A, Hawley, N, Banks, S, and Miller, J. The association between Montreal Cognitive Assessment memory scores and hippocampal volume in a neurodegenerative disease sample. Poster Presentation at International Neuropsychological Society, New Orleans, LA, 2017.

    5. Ritter A, Lee G, Zhong, K and Cummings, J, Alzheimer’s drug disease development pipeline: 2017. Poster Presentation at Clinical Trials: Alzheimer’s Disease, Boston, MA 2017.

    6. Nance, C, Ritter, A, Miller, J, Banks, S, Predictors of Rapid Cognitive Decline in the NACC Database. Neurology. 2018 P1.186.90 15 Supplement.

    7. Ritter, A., Calvin, C., Ibarra, M. Cummings, J. A. The Clinical Core of the Center for Neurodegeneration and Translational Research: A Novel Approach to the Study of Alzheimer's and Parkinson's Disease. Abstract represented at: National Idea Symposium of Biomedical Research Excellence (NISBRE), Washington, D.C. June 2018. https://www.eiseverywhere.com/ehome/nisbre/533156/.

    8. Ritter, A., Hartley-Mack, K., Ibarra, M., Cummings, J., A Novel Approach to Recruitment for Alzheimer’s Disease Research: The Experience of the Center for Neurodegeneration and Translational Neuroscience (CNCN). Abstract represented at: National Idea Symposium of Biomedical Research Excellence (NISBRE), Washington, D.C. June 2018. https://www.eiseverywhere.com/ehome/nisbre/533156/.

    9. J. Bayram, E. Sreenivasan, K, Ritter, A. Caldwell, J. Cognitive Correlates of Amyloid Deposition. Presentation at International Neuropsychological International Meeting. New York, NY. February 2019.

    10. Longhurst, J., Ritter, A., Rider, J., and Landers, Merrill. Physical therapy is Associated with Improvements in Gait and Balance in Individuals with Lewy Body Dementia: A Retrospective Analysis. Presentation at the International Lewy Body Conference. Las Vegas, NV. June 25, 2019.

    11. Mishra V., Sreenivasan K.R., Bayram E., Banks S., Longhurst J., Yang Z., Zhuang X., Cordes D., Ritter A., Caldwell J., Bluett B. (2019). Disrupted Structural Organization in Parkinson’s Disease Patients With and Without Memory Impairment. 25th Annual Meeting of the Organization for Human Brain Mapping.

    12. Sreenivasan K.R., Bayram E., Banks S., Longhurst J., Zhuang X., Yang Z., Cordes D., Ritter A., Caldwell J., Bluett B., Mishra V. (2019). Claustrum Functional Connectivity in Parkinson’s Disease Patients with Mild Cognitive Impairment. 25th Annual Meeting of the Organization for Human Brain Mapping.

    13. Sreenivasan K.R., Bayram E., Banks S., Longhurst J., Yang Z., Zhuang X., Cordes D., Ritter A., Caldwell J., Bluett B., Mishra V. (2019). Functional Network Topology in Parkinson’s Disease Patients with Mild Cognitive Impairment. 25th Annual Meeting of the Organization for Human Brain Mapping.

    14. Bayram E., Sreenivasan K.R., Longhurst J., Banks S., Yang Z., Zhuang X., Cordes D., Ritter A., Caldwell J., Bluett B., Mishra V. (2019). Associations Between Dual Task Cost and Striatal Functional Connectivity in Parkinson’s Disease with Mild Cognitive Impairment. International Society for Magnetic Resonance in Medicine 27th Annual Meeting & Exhibition.

    15. Mishra V., Sreenivasan K.R., Bayram E., Banks S., Longhurst J., Yang Z., Zhuang X., Cordes D., Ritter A., Caldwell J., Bluett B. (2019). Towards identification of neuroanatomical correlates of neuropsychological scores in Parkinson’s disease patients, with and without, memory impairment. International Society for Magnetic Resonance in Medicine 27th Annual Meeting & Exhibition.

    16. Sreenivasan K.R., Bayram E., Banks S., Longhurst J., Yang Z., Zhuang X., Cordes D., Ritter A., Caldwell J., Bluett B., Mishra V. (2019). Aberrant Functional Connectivity and Network Topology in Parkinson’s Disease Patients with Mild Cognitive Impairment. International Society for Magnetic Resonance in Medicine 27th Annual Meeting & Exhibition.

    17. Sreenivasan K.R., Bayram E., Banks S., Longhurst J., Zhuang X., Yang Z., Cordes D., Ritter A., Caldwell J., Bluett B., Mishra V. (2019). Altered Claustral Functional Connectivity in Parkinson’s disease Patients with Mild Cognitive Impairment. International Society for Magnetic Resonance in Medicine 27th Annual Meeting & Exhibition.

    18. Ritter A and Mishra V. Investigating the Sensitivity of Free-Water Imaging in Detecting White-Matter Abnormalities within Patients with Alzheimer’s Disease. Alzheimer's & Dementia: The Journal of the Alzheimer's Association, Volume 15, Issue 7, P762 - P763. July 2019

    19. Ritter A and Calvin, K. Sensitivity of the Montreal Cognitive Assessment to Amyloid Pathology in a Mixed Clinical Sample, Poster. Alzheimer's & Dementia: The Journal of the Alzheimer's Association, Volume 15, Issue 7, P360. July 2019

    20. Hawley, N., Bennett, L., Ritter, A.,An Unbiased Biomarker Approach to Neuropsychological, Behavioral, and Psychiatric Symptoms in a Mixed Clinical Sample, Volume 34, Issue 6, August 2019, Page 1029. https://doi.org/10.1093/arclin/acz034.164

    21. Hawley, N., Bennett, L., Ritter, A., The Sensitivity and Specificity of the Montreal Cognitive Assessment is Age Dependent for Amyloid Positivity in a Mixed Clinical Sample. Archives of Clinical Neuropsychology, Volume 34, Issue 6, August 2019, Page 1030. https://doi.org/10.1093/arclin/acz034.165

    22. Longhurst, J., Caldwell, J.Z.K., Ritter, A., Mishra, V., Bluett, B., & Landers, M. The cognitive profiles of individuals with freezing of gait differs among freezing of gait subtypes in Parkinson's disease. Poster submitted for the 2019 Annual Meeting of the International Congress of Parkinson's Disease and Movement Disorders, Nice, September 22-26.

    23. Caldwell, J.Z.K., Zhuang, X., Ritter, A., Sreenivasan, K., Mishra, V., Cummings, J., Banks, S., & Cordes, D. Relationship of verbal memory to default mode network volume differs by sex and amyloid status. Presentation accepted for the 2019 NIH IDeA Western Regional Conference, Las Vegas, October 7-9.

    24. Kaylegian, J., Ritter, A., & Caldwell, J.Z.K. Impairment Rating Discrepancies in a Longitudinal Observational Alzheimer's Study. Poster submitted for the 2019 NIH IDeA Western Regional Conference, Las Vegas, October 7-9.

    25. Ritter A and Calvin K, Can Results from the Brief Smell Identification Test (BSIT) Predict Amyloid PET Results? Sensitivity and Specificity Analyses in a Mixed SCI and MCI Population. (Accepted for Presentation at the 2019 Western IDeA Western Regional Conference, October 2019, Las Vegas, NV)

    26. Matthews, D., Ritter, A., Thomas, R., Andrews, R., Luckic, A., Revta, C., Tousi, B., Leverenz, J., Fillit, H., Zhong, K., Feldman, H., Cummings, J., The Effects of Rasagiline Upon Glucose Metabolism, Cognition, and Tau in Patients With Mild to Moderate Alzheimer’s Disease: Results of a Phase II Clinical Trial. OC19-The Journal of Prevention of Alzheimer’s Disease-JPAD. Volume 6, Supplement 1, 2019.

    27. Ritter A., K. Zhong, G. Lee, J.Cummings, M. Sabbagh. Alzheimer’s Disease Drug Development Pipeline: 2019. Alzheimer’s Disease Drug Development Pipeline: 2019. P043 The Journal of Prevention of Alzheimer’s Disease-JPAD. Volume 6, Supplement 1, 2019.

    28. Mishra, V., Ritter, A., Cordes, D., Caldwell, Diffusion Kurtosis Imaging Suggests Sex Specific Alteration of White Matter in Mild Cognitively Impaired Participants (accepted for publication at AAIC-2020)

    29. Mishra, V., Caldwell, C., Cordes, D., Shan, G., Ritter, A., Diffusion MRI-Derived Free Water Fraction May be a Sensitive Imaging Biomarker that could Improve Identification of Mild Cognitive Impairment Participants progressing to Alzheimer’s disease-dementia. (accepted for publication at AAIC-2020)

    30. Sreenivasan K, Zhuang X, Longhurst J, Yang Z, Cordes D, Ritter A, Caldwell J, Mari Z, Litvan I, Bluett B and Mishra V. Resting state functional connectivity in levodopa non responsive Parkinson’s disease patients with freezing of gait. 2020 International Association of Parkinsonism and Related Disorders.

    31. Mishra V, Sreenivasan K, Cordes D, Ritter A, Miller J, Mari Z, Litvan I, and Caldwell J. Investigating the sensitivity of free-water corrected diffusion-weighted MRI measures to understand sex-specific alterations in Parkinson’s disease with mild cognitive impairment. 2020 International Association of Parkinsonism and Related Disorders.

    RESEARCH ACTIVITIES:

    FUNDED RESEARCH, GRANTS, CLINICAL TRIALS:

    2016-2020 Global Alzheimer’s Platform (GAP)

    Primary Investigator ($100,000)

    2016-Present Center for Neurodegeneration and Translational Research (CNTN) NIGMS: P20GM109025; Director, Clinical and Translational Research Core

    2019 Influence of Amyloid on Cognition, Cleveland Clinic Catalyst Grant

    Primary Investigator ($75,000)

    2019-Present Brain Health in Professional Athletes

    Co-Investigator

    2020-Present Lou Ruvo Center for Brain Health Brain Donation Program, Marlon Foundation Grant; Co-Investigator ($100,000)

    CLINICAL TRIALS:

    Alzheimer’s Disease

    2014-2016 EXPEDITION 3 (Eli Lilly),

    Site Sub-Investigator

    2014-2016 IDEAS Study (CMS/Eli Lilly),

    Site Primary Investigator

    2014-2018 TOMMORROW Study (Takeda),

    Site Primary Investigator

    2014-2018 DISINHIBITION Study (Avanir Pharmaceuticals),

    Site Sub-Investigator

    2014-2018 R2 Study (ADDF/Avid/Takeda),

    Site Co-Investigator

    2016-2017 EARLY STUDY (Janssen),

    Site, Sub-Investigator

    2016-2019 GENEMATCH Study (Banner Health),

    Site Primary Investigator

    2016-2019 CREAD II Study (Genentech),

    Site Co-Investigator

    2016-2019 EMERGE Study (Biogen),

    Site Primary Investigator

    2016-2020 GENERATION Study (Novartis),

    Site Primary Investigator

    2016-current LEARN Study (Alzheimer’s Assoc/NIA),

    Site Primary Investigator

    2016-current Healthybrains.org (Cleveland Clinic),

    Site Sub-Investigator

    2016-current A4 Study (Eli Lily),

    Site Primary Investigator

    2016-current EXERT Study (ADCS),

    Site Blinded Investigator

    2016-current ADNI 3 Study (University of Southern California),

    Site Sub-Investigator

    2017-2020 MISSION AD Study (Eisai),

    Site Primary Investigator

    2018-current nQ Medical (nQ),

    Primary Investigator

    2018-current S-CitAD Study (JHSPH),

    Site Primary Investigator

    2018-current T2 TRIPROTECT Study (Biohaven),

    Site Primary Investigator

    2018-current GRADUATE II Study (Genentech),

    Site Primary Investigator

    2019-current OPTINA Study (Optina),

    Primary Investigator

    2019-current MCLENA-1 Study (NIH),

    Site Sub-Investigator

    2019-current CLARITY Study (Eisai),

    Site Primary Investigator

    2019-current GAIN Study (Cortexyme),

    Site Primary Investigator

    2019—current TRC PAD Study (NIA/ATRI),

    Site Sub-Investigator

    2020-current EMBARK Study (Biogen), S

    ite Primary Investigator

    Bipolar Disorder

    2012-2014 DCS Study (University of Arizona),

    Sub-Investigator

    Chronic Traumatic Encephalopathy

    2016-current Professional Fighter’s Study (CCLRCBH Philanthropy),

    Co-Investigator

    2016-current DIAGNOSE CTE Study (NINDS),

    Site Sub-Investigator

    Dementia with Lewy Bodies

    2016-current PRESENCE Study (Eli Lilly),

    Site Sub-Investigator

    2019-current ASCEND-LB Study (EIP Pharma),

    Site Primary Investigator

    Frontotemporal Dementia

    2020-current ALLFTD Study (NIA and NINDS),

    Site Primary Investigator

    Huntington’s Disease

    2016-current ENROLL HD Study (CHDI Foundation),

    Site Sub-Investigator

    Multiple Sclerosis

    2016-2018 AFFINITY Study (Biogen),

    Site Sub-Investigator

    2016-2019 CHORDS Study (Genentech),

    Site Sub-Investigator

    2016-current BAF312 Study (Novartis),

    Site Sub-Investigator

    2016-current ENSEMBLE Study (Roche),

    Site Sub-Investigator

    2016-current FLUENT Study (Novartis),

    Site Sub-Investigator

    2016-current ESTEEM Study (Biogen),

    Site Sub-Investigator

    2017-current ARISE Study (UTSW),

    Site Sub-Investigator

    2017-current ALTHIOS Study (Novartis),

    Site Sub-Investigator

    2017-current NOVA Study (Biogen),

    Site Sub-Investigator

    2018-current DAYBREAK (Celgene),

    Site Sub-Investigator

    2018-current MS PATHS (Biogen),

    Site Sub-Investigator

    2018-current ULTIMATE 2 (TG Therapeutics),

    Site Sub-Investigator

    Parkinson’s Disease

    2016-2018 NILO PD Study (Northwestern University),

    Site Sub-Investigator

    2018-Present INSYTE Study (Acadia),

    Site: Primary Investigator

    Progressive Supranuclear Palsy

    2017-2019 ARISE Study (AbbVie),

    Site Co-Investigator

     

    INVESTIGATIONAL NEW DRUG DEVICES HELD:

     

    2018-Present GE-180

Certifications

  • Psychiatry and Neurology - Psychiatry

Specialty Interests

Alzheimer's disease, Lewy body Disease, Vascular dementia, Chronic Traumatic Encephalopathy

Awards & Honors

  • 2012 Dean’s List in Excellence in Teaching by a Houseofficer 2010-2011, University of Arizona
  • 2013 Junior Resident Award for Best Overall Performance for 2012-2013, University of Arizona
  • 2014 GME Resident Excellence and Leadership Scholarship for 2012-2013, University of Arizona
  • 2014 Ely Lily Research Award for 2013-2014, University of Arizona
  • 2015 Cleveland Clinic Excellence in Teaching Award for 2014-2015
  • 2016 Cleveland Clinic Excellence in Teaching Award for 2015-2016
  • 2018 2018 Innovator Healthcare Hero, Anthem BlueCross BlueShield and Nevada Business Magazine
  • 2019 The Dr. Roy Martin 2019 Las Vegas HEALS Inspired Excellence in Healthcare Award
  • 2020 Key Note Speaker, Touro Research Day; Touro University, Henderson, NV
  • 2020 2020 Alzheimer’s Award for the article: The Pathology of Rapid Cognitive Decline in Clinically Diagnosed Alzheimer's DiseaseJournal of Alzheimer’s Disease

Memberships

  • American Neuropsychiatry Association 2014-Present Member
  • International Parkinson and Movement Disorder Society (MDS) 2016-2018 Member
  • American Academy of Neurology 2017-Present Member
  • International Society to Advance Alzheimer’s Research and Treatment (ISTAART) 2017-Present Member
Research & Publications

Research & Publications

See publications for Aaron Ritter, MD.

(Disclaimer: This search is powered by PubMed, a service of the U.S. National Library of Medicine. PubMed is a third-party website with no affiliation with Cleveland Clinic.)

Industry Relationships

Industry Relationships

Cleveland Clinic physicians and scientists may collaborate with the pharmaceutical or medical device industries to help develop medical breakthroughs or provide medical expertise or education. Cleveland Clinic strives to make scientific advances that will benefit patient care and support outside relationships that promise public benefit. In order for the discoveries of Cleveland Clinic physicians' and scientists' laboratories and investigations to benefit the public, these discoveries must be commercialized in partnership with industry. As experts in their fields, Cleveland Clinic physicians and scientists are often sought after by industry to consult, provide expertise and education.

To assure professional and commercial integrity in such matters, Cleveland Clinic maintains a program that reviews these collaborations and, when appropriate, puts measures in place to minimize bias that may result from ties to industry. Cleveland Clinic publicly discloses the names of companies when (i) its physicians/scientists receive $5,000 or more per year (or, in rare cases, equity or stock options) for speaking and consulting, (ii) its physicians/scientists serve as a fiduciary, (iii) its physicians/scientists receive or have the right to receive royalties or (iv) its physicians/ scientists hold any equity interest for the physician's/scientist's role as inventor, discoverer, developer, founder or consultant.* In publicly disclosing this information, Cleveland Clinic tries to provide information as accurately as possible about its physicians' and scientists' connections with industry.

As of 4/28/2022, Dr. Ritter has reported no financial relationship with industry that is applicable to this listing. In general, patients should feel free to contact their doctor about any of the relationships and how the relationships are overseen by Cleveland Clinic. To learn more about Cleveland Clinic's policies on collaborations with industry and innovation management, go to our Integrity in Innovation page.

Public Health Service-Reportable Financial Conflicts of Interest. Cleveland Clinic scientists and physicians engage in basic, translational and clinical research activities, working to solve health problems, enhance patient care and improve quality of life for patients. Interactions with industry are essential to bringing the researchers' discoveries to the public, but can present the potential for conflicts of interest related to their research activities. Click here to view a listing of instances where Cleveland Clinic has identified a Public Health Service (PHS)-Reportable Financial Conflict of Interest and has put measures in place to ensure that, to the extent possible, the design, conduct and reporting of the research is free from bias.

* Cleveland Clinic physicians and scientists subscribe to the guidance presented in the PhRMA Code on Interactions with Healthcare Professionals and the AdvaMed Code of Ethics on Interactions with Health Care Professionals. As such, gifts of substantial value are generally prohibited.

Patient Satisfaction Reviews

399 Patient Satisfaction Reviews

The Patient Satisfaction Rating is an average of all responses to the care provider related questions shown below from our nationally-recognized Press Ganey Patient Satisfaction Survey. Patients that are treated in outpatient or hospital environments may receive different surveys, and the volume of responses will vary by question.

Responses are measured on a scale of 1 to 5 with 5 being the best score.

The comments are submitted by patients and reflect their views and opinions. The comments are not endorsed by and do not necessarily reflect the views of Cleveland Clinic.

Overall Star Ratings
4.9 out of 5
Explains 4.9
Courtesy, Respect & Concern 5
Patient Rating of Doctor 5

122 Patient Comments

Reviewed on May 27, 2022

Can't say enough good things about Dr. Ritter - cares, listens, takes the necessary time to explain everything - just all around the best doctor we have ever experienced.

Reviewed on May 27, 2022

Dr. Ritter. Highly professional, competitive, understood concerns, listened without interruption.Having been examined by quite a few Las Vegas physicians Dr. Ritter surely must be in the one percent of doctors. Gret experience.

Reviewed on May 26, 2022

There was a slight miscommunication with our appointment, however, Victoria stepped in, took charge and made it possible for Charles to see Dr. Ritter.

Reviewed on May 26, 2022

We were very pleased with Dr. Ritter! He took time to assess my husband. He was very kind and considerate, he asked pertinent questions, made certain we understood and agreed with all aspects of discussion. He is a Godsend!!!

Reviewed on May 24, 2022

Dr. Ritter was kind, gentle and very attentive to my mother. He addressed her directly when asking her questions and listened to her. I was also very appreciative of the time he took to listen to me, her daughter, privately. I was able to explain issues and concerns without alerting or alarming my mother.

Reviewed on May 23, 2022

Dr. Ritter was very caring.

Reviewed on May 23, 2022

Dr. Ritter is the most caring doctor I have ever had. You never feel rushed and he answers my questions in a way I can understand.

Reviewed on May 17, 2022

Very good and Dr Ritter was great

Reviewed on May 17, 2022

Everyone was very helpful, considerate and informative especially Dr. Ritter.

Reviewed on May 6, 2022

Everything was explained in detail and he made it easy for me to understand. The doctor showed genuine concern about my condition

Reviewed on Apr 29, 2022

There is nothing negative to say. Dr. Ritter is very upbeat, personal and professional physician. He lets you know what is happening and whether you need to be concerned or not. I think his current staff is the best that he has had in the COBRA study.

Reviewed on Apr 26, 2022

Dr. Ritter had a computer issue with the Zoom mute but he called on my cellphone and we still were able to see him on the computer and just talk through the cell phone.

Reviewed on Apr 26, 2022

Dr. Ritter is a good listener and cares about his patients and their caregivers.

Reviewed on Apr 26, 2022

We have yet to me Dr. Ritter in person. The only appts have been on Telehealth and I'm not sure why that's the only thing offered at this time.

Reviewed on Apr 25, 2022

Dr. Ritter was absolutely outstanding! He explained everything thoroughly and he even showed me a picture of the brain scan and explained everything of how I was originally diagnosed with Dementia by another neurologist that didn't know what the heck he was talking about! I am eternally grateful for this appointment for his attention to detail.

Reviewed on Apr 25, 2022

Like I mentioned before the staff was absolutely professional and caring. I will most DEFINITELY recommend the Cleveland Clinic as well Dr. Ritter to others

Reviewed on Apr 12, 2022

Dr. Ritter has an extraordinary ability to relate personally to the patient, make them feel comfortable and still maintain the authority of his knowledge and experience. He is one in a million.

Reviewed on Apr 8, 2022

Fantastic patient and employee interaction from phone call with my schedule, check in, transport to department. Fantastic interaction with Dr. Ritters staff and Dr. Ritter

Reviewed on Apr 8, 2022

Dr Ritter is a very caring, patient, thorough and professional doctor. He listens without Interrupting and explains things at my level.

Reviewed on Apr 8, 2022

Wish there were eight Dr. Ritters

Reviewed on Apr 8, 2022

Wish there were ten Dr. Ritters..excellent should be his category

Reviewed on Apr 1, 2022

We absolutely love Dr. Ritter, my Mother was super happy with him, he treated her with such respect.

Reviewed on Apr 1, 2022

Dr. Ritter is an excellent communicator.

Reviewed on Mar 30, 2022

Dr Ritter is very timely and I feel he knows what I need and explains why.

Reviewed on Mar 29, 2022

There were no bad experiences with Dr. Ritter.

Reviewed on Mar 15, 2022

Dr.Ritter was so nice. Gave time to listen to me.

Reviewed on Mar 11, 2022

Dr Ritter took time to talk about my MRI and my memory tests results, and was most courteous and professional.

Reviewed on Mar 11, 2022

Dr. Ritter was wonderful Very informative and caring

Reviewed on Mar 9, 2022

I have always been very impressed with Dr. Ritter and his staff. They are fantastic.

Reviewed on Feb 23, 2022

Dr. Ritter and staff are the best, always caring and compassionate

Reviewed on Feb 23, 2022

Dr. Ritter always takes the time to address questions and concerns. He is the best!!!

Reviewed on Feb 23, 2022

Dr. Aaren Ritter opened my eyes to what is before me and what I can do about it. I look eagerly forward to my next appointment.

Reviewed on Feb 21, 2022

Dr Ritter is thoughtful and patient

Reviewed on Feb 18, 2022

My experience was excellent with Dr. Ritter. Extremely knowledgeable. Handle him Self very professionally.

Reviewed on Feb 18, 2022

The doctor was excellent. He explained everything. Talking to him was very easy. He made sure we understood everything he said which was perfect.

Reviewed on Feb 18, 2022

I feel that I finally have a doctor that can help me.

Reviewed on Feb 18, 2022

Dr. Ritter was the best physician I have ever seen! He listened to me. He answered my questions thoroughly & as if they were the most important thing he could be doing. I can't say enough good about him!

Reviewed on Feb 15, 2022

It was great to have the opportunity to see Dr. Ritter. Thank you for bringing me in.

Reviewed on Feb 15, 2022

Dr Ritter was one of the best physicians I have ever had the pleasure of a working with for treatment.

Reviewed on Feb 11, 2022

Dr. Ritter is kind in nature, and attentive! Staff is prompt and helpful.

Reviewed on Jan 28, 2022

Dr Ritter explained everything in a way I could understand. He spent time with me and seemed to really care. Didnt rush me in and out and also seemed concerned about not having a supplemental which Icannot do because I cant give up my 3 main Drs.

Reviewed on Jan 28, 2022

Dr. Ritter and clinic staff are all great. I wish all of my other doctors and their staffs were even half as good as they are (because none are).

Reviewed on Jan 27, 2022

Dr. Ritter is one of the best Doctor's I've ever had .

Reviewed on Jan 26, 2022

Dr. Ritter is an excellent and caring doctor.

Reviewed on Jan 25, 2022

Dr Ritter is an incredible doctor and caring person.

Reviewed on Jan 24, 2022

Absolutely excellent. I wish all physicians were as dedicated as Dr. Ritter.

Reviewed on Jan 14, 2022

Dr Ritter always helpful polite caring but always honest

Reviewed on Jan 4, 2022

*Dr. Ritter is intuitive, compassionate & relatable.

Reviewed on Jan 4, 2022

Excellent care. It was my first visit and. Dr. Ritter made me feel so comfortable, listened to my questions / concerns, answered all my questions/ concerns without making me feel rushed. A very positive appointment.

Reviewed on Dec 30, 2021

Dr Ritter is an excellent and compassionate professional who really cares for his patient

Reviewed on Dec 30, 2021

Dr Ritter showed much concern and willingness to do the best that he is able to do and to the best of his ability

Reviewed on Dec 29, 2021

Dr. Ritter was extremely personable, caring and thorough during our visit.

Reviewed on Dec 28, 2021

Dr. Ritter is very knowledgeable and an awesome provider!

Reviewed on Dec 15, 2021

Dr Ritter is very attentive, easy to understand and intuitive. He is encouraging and stresses what changes the patient needs to make.

Reviewed on Dec 10, 2021

Dr Ritter is very professional but also sensitive to communicating well with myself and my daughter.

Reviewed on Dec 7, 2021

I am so very comfortable having Dr Ritter as my Neurologist or any other care. He is an excellent physician and human being.

Reviewed on Dec 7, 2021

Because I had a 5:30 pm appointment I saw Dr Ritter primarily. He was caring, informative and explained things well.

Reviewed on Nov 30, 2021

Dr. Ritter spent so much time with my dad (who was in the hospital at the time of the visit and still is). He answered questions in detail, accessed records, and was wonderful. My only concern is that Dr. Ritter's schedule makes it really hard to see him. I was very grateful that this appointment was moved forward from February.

Reviewed on Nov 23, 2021

Once I saw the doctor everything was excellent

Reviewed on Nov 15, 2021

I'm glad my physician is Dr.Aaron Ritter. Courteous, kind and caring.

Reviewed on Nov 15, 2021

Dr. Ritter is the epitome of what a medical profession should be: friendly, listens to you, cares about you and your condition, and never rushes you for decisions or time.

Reviewed on Nov 15, 2021

Knowing that I wanted a very good doctor, so I was ok with waiting for a good doctor. He was very accommodating in all I was asking about and was very happy with his answers.

Reviewed on Nov 15, 2021

Every thing made me very comfortable. I would recommend anyone who would have a doctor from there.

Reviewed on Nov 2, 2021

Great doctor!!!!!

Reviewed on Nov 1, 2021

We've had a wonderful experience contacting everyone at Cleveland Clinic from the social worker to the doctor. It is such a relief to know that there is someone who can respond to our concerns right away. This gives us a sense of confidence that in case of an emergency, someone will assist right away as well.

Reviewed on Nov 1, 2021

Dr. Ritter was very professional yet caring. He delivered news that were difficult to hear with kindness (i.e. The first visit regarding my mom's diagnosis - dementia. The second time that her memory was really deteriorating.) However, he couched it with kindness. He was very patient when I got emotional and I usually do not cry in public. He made me feel that it's okay to cry in front of a stranger. He had such a calming demeanor. He was so receptive that he had my mom take the memory test with the nurse so I could speak to him in private and ask questions that I didn't want my mother to hear. In no time did I feel that I needed to rush because he had other appointments. I don't know how I could have handled such a difficult situation had it been another doctor. I consider it a blessing to have Dr. Ritter assigned to my mom. Thank you.

Reviewed on Oct 26, 2021

Absolutely excellent care by Dr. Ritter!! Great listener, very knowledgeable and personable.

Reviewed on Oct 26, 2021

Dr. Ritter is exemplary and a true asset to the Cleveland Clinic. Knowledgable, caring, empathetic, professional, and helpful, having him as my physician helps me to feel hopeful about the quality of my health and life.

Reviewed on Oct 25, 2021

Dr Ritter was compastionate and listened. He did not rush us and took us on time. We felt very comfortable with him.

Reviewed on Oct 25, 2021

Dr. Ritter was extremely personably, friendly, & understanding to all my concerns.

Reviewed on Oct 22, 2021

From the very first visit with Dr Ritter ,We were very impressed , with his empathy, caring , knowledge and total commitment to help my mom's health improve was evident and continues to be so during our visits or appointments.He's God sent to us , because of him my mom has improved tremendously!He's helpful with every issue we bring to him , and helpful with medications, and very clearly explains all medical tests and questions we have.Mom smiles Big when she sees him and he's very friendly and sincere .We all love him and consider our selves lucky to have him take care of mom.I tell all my family and friends about him and The Cleveland Clinic and how grateful we're because ever since we started with Dr Ritter and visits to the Clinic , Am confident mom is getting the Best help available .Thank you Dr Ritter and amazing friendly staff!

Reviewed on Oct 22, 2021

Dr Ritter is superb.

Reviewed on Oct 19, 2021

Great appointment, as Dr. Ritter is very wise and caring.

Reviewed on Oct 19, 2021

We were called 15 minutes before our appointed time to tell us to come in early and then we waited for an hour before we were able to see the doctor. Not good. Dr. Ritter was extremely polite and apologetic and our appointment with him went well. We were told that we would be called the next day to set up her next appointment and we have never been contacted not good.

Reviewed on Oct 18, 2021

Dr Ritter is attentive, patient and through

Reviewed on Oct 13, 2021

Dr Ritter and RN Amy Sheets are wonderful people. The care and concern they exhibited were exemplary.

Reviewed on Oct 11, 2021

The provider gave me what I needed.

Reviewed on Oct 4, 2021

Dr. Ritter is the best! He's detailed, listens, shows care and compassion. I'm so grateful he's my neurologist.

Reviewed on Oct 4, 2021

Dr. Ritter is a prime example for how all physicians should be. Kind, caring, patient, detailed, compassionate.

Reviewed on Oct 4, 2021

Dr Ritter is amazing

Reviewed on Sep 28, 2021

Excellent overall. Only wish is that there were more available appointments but understandable considering high demand for such an amazing , super star Dr. Ritter!!

Reviewed on Sep 28, 2021

Dr. Ritter is one of the best if not the best care provider we have experienced to date.

Reviewed on Sep 20, 2021

We love Dr. Ritter

Reviewed on Sep 20, 2021

Dr Ritter is not only a caring physician and great clinician, but a wonderful person as well. He has saved me.

Reviewed on Sep 10, 2021

As previously stated. Dr. Ritter is A+++ in my opinion. I trust him, I like him and I will be forever grateful to him.

Reviewed on Sep 10, 2021

From the moment I entered the clinic to when I left, everything was extraordinary. The nurse, Michelle, Dr Campbell and Dr Ritter exhibited the upmost degree of professionalism.

Reviewed on Sep 7, 2021

This doctor is one of the BEST in my experience with doctors!!!! And yes I have recommended him to those who have mentioned a concern regarding their forgetfulness/memory.

Reviewed on Aug 27, 2021

Always a pleasure to meet up with Dr Ritter. Been seeing him for, never a compliment

Reviewed on Aug 26, 2021

Dr. Ritter is a cool guy.

Reviewed on Aug 24, 2021

Dr Ritter is one of the finest doctors we have ever come across. He is caring and respectful and addresses every question that we have to the best of his ability

Reviewed on Aug 18, 2021

Dr. Ritter is a first physician. Very happy with him

Reviewed on Aug 16, 2021

The most wonderful, knowledgeable and compassionate physician ever!!!!

Reviewed on Aug 16, 2021

I have referred 4 patients to the clinic , in particular to dr Ritter

Reviewed on Aug 12, 2021

Dr Ritter didn't rush through, he didn't treat me like he was too busy

Reviewed on Aug 12, 2021

Dr Ritter is always patient, informative, ready to discuss options with, caring

Reviewed on Aug 12, 2021

All personal from the security person to Dr Ritter we're extremely helpful!

Reviewed on Aug 12, 2021

This was a very fluid process. Doctor Aaron is perfect in his role as is the rest of the group. It was a pleasure spending time at the Clinic.

Reviewed on Aug 11, 2021

Wish Dr Ritter could be our primary care physician

Reviewed on Aug 6, 2021

The absolute BEST Doctor I've ever seen. He listened to everything I ask about or commented on. He asked questions about my concerns. Did a short memory test and seemed to relate to me as an individual not just his patient. At NO TIME did I feel rushed or uncomfortable. My entire Cleveland Clinic visit was second to none!!!!!!

Reviewed on Aug 4, 2021

Use my Cleveland clinic to contact MD with question regarding increasing dosage of medication discussed at visit. Response from nurse who said it wasn't noted in the chart. Keep it the same despite my relating the office discussion. Perhaps she's could have asked the MD.

Reviewed on Jul 29, 2021

*Dr. Ritter very empathetically delivered news no one wants to hear. It's time to move to a facility.

Reviewed on Jul 29, 2021

*Dr. Ritter is the best of the best. We _____ to have him and C.C. in Las Vegas.

Reviewed on Jul 28, 2021

My treatment was very professional and with kindness beyond Doctor - Patient respect.

Reviewed on Jul 23, 2021

I was so impressed with Dr. Ritter and the nurse. Very professional, caring and kind

Reviewed on Jul 13, 2021

Dr. Was wonderful.

Reviewed on Jul 13, 2021

Excellent experience with people in the clinic and exelent results with Dr. Ritter a unique experience the whole personnel treatme like human being. It matters to me.

Reviewed on Jul 13, 2021

The Doctor is the best and I couldn't ask for anything more we are very happy with the care received

Reviewed on Jul 12, 2021

Dr Ritter absolutely the best explained everything to me to work I understood it along with some other possible alternatives

Reviewed on Jul 12, 2021

Dr Ritter is excellent at listening, describing in detail what is going on medically,and offering ideas for long range planning

Reviewed on Jul 7, 2021

Dr. Ritter is kind, thorough, thoughtful and detail. He takes time to explain the details. We truly appreciate his expertise! Thank you.

Reviewed on Jul 6, 2021

Very, very happy my RN wife found Doctor Ritter. Very happy and he is always concerned and looking for the best way ahead!

Reviewed on Jul 6, 2021

Dr Ritter the best! Professional, knowledgeable.

Reviewed on Jun 29, 2021

Dr Ritter was very carefully present with me. He helped me with many concerns. I cannot say enough good things about him.

Reviewed on Jun 25, 2021

Dr Ritter is very open minded and professional

Reviewed on Jun 22, 2021

Dr. Ritter is the 4th neurologist I have seen in Las Vegas and he is by far the best!!!

Reviewed on Jun 21, 2021

Dr Ritter was excellent!

Reviewed on Jun 16, 2021

Dr Ritter was nice and seemed concerned and wanted to run some other test and I liked that.

Reviewed on Jun 16, 2021

loved doc and sam and mri staff and lab gurl

Reviewed on Jun 14, 2021

Dr.Ritter and the whole staff were amazing treated me and my mother with great respect and kindness I am so grateful to them for their care

Reviewed on Jun 14, 2021

Dr. Ritter was wonderful and we are very thankful for the time he spent going through things and really listening to everything we said.

Reviewed on Jun 11, 2021

Dr Ritter is superb

Reviewed on Jun 9, 2021

Dr. Ritter is the best

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