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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

  • Adult Neurology
  • Consultation, Evaluation, And Treatment Adult Neurological Disorders
  • Neurocritical Care
View all 3 Treatment & Services +

Specialty in Diseases & Conditions

  • Alzheimer's
  • Alzheimer's and Dementia
  • Creutzfeldt-Jakob Disease
  • Dementia
  • Dementia with Lewy Bodies
  • Frontotemporal Dementia
  • Frontotemporal Dementia (FTD)
  • Hydrocephalus Normal Pressure
View all 8 Specialties +


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About Marwan Sabbagh, MD

Marwan Noel Sabbagh, MD, board certified neurologist and geriatric neurologist, hopes to work himself out of a job. Considered one of the leading experts in Alzheimer’s and dementia, he is the Camille and Larry Ruvo Endowed Chair for Brain Health. Dr Sabbagh has dedicated his career to finding a cure for Alzheimer’s and other age-related neurodegenerative diseases.

Dr. Sabbagh is a leading investigator for many prominent national Alzheimer’s prevention and treatment trials. Dr. Sabbagh is on the editorial board for Journal of Alzheimer's Disease and BMC Neurology. He is now editor in chief of Neurology and Therapy. He has authored and co-authored more than 320 medical and scientific articles on Alzheimer’s research. 

Dr. Sabbagh is the author of The Alzheimer’s Answer: Reduce Your Risk and Keep Your Brain Healthy, with foreword by Justice Sandra Day O’Connor, and of The Alzheimer’s Prevention Cookbook: 100 Recipes to Boost Brain Health. He has edited Palliative Care for Advanced Alzheimer’s and Dementia: Guidelines and Standards for Evidence Based Care and Geriatric Neurology, published in 2014.

He has been recognized with numerous awards, including WestMarc Innovator Award, 2015; Fellow of the American Academy of Neurology, 2004; Arizona Business Journal, Healthcare Hero Finalist, 2004; Peter F Drucker Award co-recipient, 1998; and Travel Fellowship Award recipient, American Neurological Association, 1996.

Dr. Sabbagh earned his undergraduate degree from the University of California, Berkeley and his medical degree from the University of Arizona in Tucson. He received his residency training in neurology at Baylor College of Medicine, Houston, Texas, and completed his fellowship in geriatric neurology and dementia at the University of California, San Diego School of Medicine, where he served on the faculty as assistant professor. Before joining the faculty of the Barrow Neurological Institute where he served for three years, Dr. Sabbagh was with the Banner Sun Health Research Institute for 15 years.

Education & Professional Highlights

Education & Professional Highlights


Education & Fellowships

Fellowship - University of California San Diego Medical Center
Geriatric Neurology
San Diego, CA USA

Residency - Baylor University Medical Center
Dallas, TX USA

Internship - Good Samaritan Regional Medical Center
Internal Medicine
Phoenix, AZ USA

Medical Education - University of Arizona College of Medicine
Tucson, AZ USA

Undergraduate - University of California at Berkeley
Berkeley, CA USA


  • Psychiatry and Neurology - Neurology

Awards & Honors

  • Student Summer Fellow, Arizona Cancer Society, 1988
  • Student Representative to the Western Federation of Clinical Research, University of Arizona, 1990
  • Allistair Karmody Award Finalist, 1991
  • Travel Fellowship Award Recipient, American Neurological Association, 1996
  • Peter F Drucker Award Co-recipient, 1998
  • Dystonia Doctor of Excellence, San Diego County, 2000
  • Life Member of the National Registry of Who’s Who #172142, 2001
  • Arizona Business Journal, Healthcare Hero Finalist 2004
  • Fellow of the American Academy of Neurology 2004
  • WestMarc Innovator Award, 2015
Research & Publications

Research & Publications

See publications for Marwan Sabbagh, 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 1/12/2021, Dr. Sabbagh has reported the financial relationships with the companies listed below. 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.

Consulting and/or Speaking. Dr. Sabbagh receives fees of $5,000 or more per year as a paid consultant, speaker or member of an advisory committee for the following companies:

  • Health and Wellness Partners, Inc.
  • Acadia Pharmaceuticals, Inc.
  • Neurotrope, Inc.
  • Roche (Hoffman-La Roche, Ltd.)
  • Signant Health
  • Stage 2 Innovations, LLC
  • Biogen Idec, Inc.

Royalty Payments. Dr. Sabbagh receives or has the right to receive royalty payments for inventions or discoveries commercialized through the companies shown below:

  • The Optimal Cognitive Health Company LLC
  • Brain Health Inc.

Equity Dr. Sabbagh owns stock or stock options in the following companies for activities as a founder, inventor, discover, developer:

  • NeuroTau
  • Versanum Inc.

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

143 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 4.8
Courtesy, Respect & Concern 4.9
Patient Rating of Doctor 4.9

30 Patient Comments

Reviewed on Jun 30, 2021

Dr. Sabbagh is EXCELLENT in EVERY aspect. Extremely satisfied, confident under his care.

Reviewed on Jun 16, 2021

Dr. Sabbagh listened to and addressed our concern about possible wrong diagnosis of early onset Alzheimer's by my previous doctor., Dr. Leger

Reviewed on Jun 16, 2021

outstanding, compassionate and knowledgeable doctor -best we have ever had as a treating physician.

Reviewed on Jun 16, 2021

Dr Sabbagh explained all options for treatment and answers all questions

Reviewed on May 18, 2021

Dr. Sabbagh told us on 5/18 he wanted us back in 2 weeks due to how quickly my mom is declining. at checkout we were offered 8/18 as the first available!! I rejected that and requested June and got 6/23. This is another 4 week wait. very disappointing

Reviewed on Apr 29, 2021

Always a pleasure to work with Dr Sabbaugh

Reviewed on Apr 13, 2021

Great Doctor and staff very efficient and professional and helpful.

Reviewed on Apr 13, 2021

i was very comfortable with the doctor and staff

Reviewed on Mar 24, 2021

Dr. Sabbagh was well liked by my Dad. He made him feel comfortable enough....And that is what matters.

Reviewed on Mar 24, 2021

We are very thankful to Dr. Sabbagh for the concern of he has shown.

Reviewed on Mar 9, 2021

Dr Sabbagh is very caring and exceptional in his research and wanting to help his patients

Reviewed on Jan 26, 2021

Dr. explained everything very clearly and answered all our questions to our satisfaction.

Reviewed on Jan 13, 2021

love the clinic it has helped me in diagnosing my Dementia Dr Sabbagaugh is the best

Reviewed on Jan 13, 2021

Dr Sabbaugh is extremely knowledgeable and takes the time to explain and answer all my questions ... he has helped me to trust that myjouney thru dementia may be less scary

Reviewed on Dec 8, 2020

Dr. Sabbah is a extremely smart, professional caring Doctor that puts the needs of his patients first... He always listens to my concerns and answers all questions thoroughly so I can understand the process and all next steps... In my book, he is 2nd to none ! Would not want my mother in anyone else's hands .....

Reviewed on Nov 11, 2020

very good experience. Everyone at the clinic is very nice and helpful. I like Dr Mahvah very much. He makes me feel comfortable and at ease. He answers all my questions. He listens and is kind.

Reviewed on Nov 10, 2020

Doctor Sabbagh was very professional, thorough, courteous, and efficient

Reviewed on Oct 28, 2020

Dr Sabbagh is so professional and so compassionate.We believe we are receiving sound advice and direction from him.

Reviewed on Oct 20, 2020

the staff was was Dr Sabbagh.

Reviewed on Oct 20, 2020

Dr Sabbagh is the best physican ever -he is so caring and listens to what the patient has to say and answers to the best of his knowledge.

Reviewed on Oct 20, 2020

most caring doctor who listens to the patient's needs/concerns. Dr Sabbagh is most updated in his research and shares his knowledge and new promising treatments with his patients. Gives the patient hope and lifts their spirits!!!

Reviewed on Sep 15, 2020

I am so glad I found Dr Sabbagh ! he is caring, Listens to all my concerns as a caregiver I need his guidance and help

Reviewed on Sep 9, 2020

I've stayed a patient of Dr. Sabbagh even though I live in Arizona. I have great respect for him.

Reviewed on Aug 12, 2020

After a few video consultations with Dr Sabbagh, I felt it was important to see him in person. Dr Sabbagh scheduled an in-person testing to be done prior to our actual appointment. Even with the Covid issues, everything went well.

Reviewed on Aug 12, 2020

Very impressed with all affiliated at Cleveland Clinic. Unlike any experience we've had with other providers.

Reviewed on Aug 4, 2020

amazing experience from scheduling to doctor to check out!

Reviewed on Jul 22, 2020

our experience with doctor sabbath and his assistance has been very good all question answer and understanding Alzheimer's .

Reviewed on Jul 22, 2020

we found the care and concerns of the doctor nurses and assistants very caring

Reviewed on Jul 15, 2020

Excellent doctor.....Excellent experience!!

Reviewed on Jul 15, 2020

I appreciated very much that the doctor took the time to ask questions to the caregiver

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