Department Cardiovascular Medicine
Primary Location Cleveland Clinic Main Campus
Type of Doctor Adults Only
Languages English, Greek
Surgeon No
Cleveland Clinic Main Campus
Primary Location

Cleveland Clinic Main Campus


Additional Locations

Specialties & Treatments

Treatment & Services

  • Cardiovascular Medicine Department
  • George M & Linda H Kaufman Center for Heart Failure
  • Heart Failure Management
  • Heart Failure Section
  • Heart Failure Surgery
  • Heart Transplantation
  • Ventricular Assist Device
View all 7 Treatment & Services +

Specialty in Diseases & Conditions

  • Amyloidosis
  • Cancer and the Heart
  • Cardiac transplant
  • Cardiomyopathy
  • Cardiovascular Disease in Women
  • Dilated Cardiomyopathy
  • Familial Cardiomyopathy
  • Heart Disease
  • Heart Disease - Women
  • Heart Disease & Pregnancy
  • Heart Failure
  • Heart Failure In Women
  • Hypertrophic Cardiomyopathy
  • Infiltrative Cardiomyopathy
  • Ischemic Cardiomyopathy
  • Pulmonary Hypertension
  • Restrictive Cardiomyopathy
  • Sarcoid Heart Disease
View all 18 Specialties +


Is Cleveland Clinic Florida Part of Your Insurance?

Review a list of accepted insurance plans for our Florida locations or learn more about purchasing a contracted managed care plan.

View All Plans

About Maria Mountis, DO

Dr. Maria Mountis is Staff in the Division of Cardiology, Section of Heart Failure and Transplantation.  She was appointed to the Cleveland Clinic in 2008.   She is board certified in Internal Medicine, Cardiology, and Advanced Heart Failure and Transplant  by the American Board of Internal Medicine. She is also certified in adult echocardiography by the National Board of Echocardiography.

In addition to office visits, Dr. Mountis also offers scheduled pre-visits and  follow up virtual visits to select patients, through the Cleveland Clinic Express Care ® Online app. This platform allows patients to see their physician live, using their smartphone, tablet or computer.

Specialty Interests:  Diagnosis and treatment of advanced heart failure, cardiac transplantation, mechanical assist devices, pulmonary hypertension, and the cardiac care of women.

Success Rates: Cleveland Clinic has been ranked the #1 hospital for cardiology and heart surgery by U.S. News & World Report since 1994. Success rates for specific procedures are available at:

Education and Training: Dr. Mountis is a Pennsylvania native, graduating with a B.S. degree in Biology from Saint Joseph's University, Philadelphia, PA. She received her medical degree from the Philadelphia College of Osteopathic Medicine and completed her internship and residency in Internal Medicine at Lehigh Valley Hospital and Health Network in Allentown, PA. This was followed by her fellowship in Cardiovascular Medicine at Albert Einstein Medical Center in Philadelphia, PA, where she was also appointed Chief Cardiovascular Fellow. She continued her training at the Hospital of the University of Pennsylvania with a fellowship dedicated to the care of patients with Advanced Heart Failure and Cardiac Transplant.

Education & Professional Highlights

Education & Professional Highlights


Education & Fellowships

Fellowship - Hospital of The University of Pennsylvania
Heart Failure/Transplant
Philadelphia, PA USA

Fellowship - Albert Einstein Medical Center
Philadelphia, PA USA

Residency - Lehigh Valley Hospital
Internal Medicine
Allentown, PA USA

Internship - Lehigh Valley Hospital
Internal Medicine
Allentown, PA USA

Medical School - Philadelphia College of Osteopathic Medicine
Philadelphia, PA USA

Undergraduate - Saint Joseph's University
Philadelphia, PA USA


  • Internal Medicine - Advanced Heart Failure and Transplant Cardiology

Specialty Interests

Cardiomyopathy, cardiac tumors, heart failure, heart transplantation, ventricular assist device, myocardial biopsy, cardiac catheterization, heart failure in women, pulmonary hypertension

Awards & Honors

  • American Heart Association, Women in Cardiology Trainee Award for Excellence
  • Chief Cardiovascular Fellow, Albert Einstein Medical Center
  • Fellow, American College of Cardiology
Research & Publications

Research & Publications

See publications for Maria Mountis, DO.

(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 6/11/2018, Dr. Mountis 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

154 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
Listens 4.9
Courtesy, Respect & Concern 5
Knows Medical History 4.9
Time Spent with Patient 4.9
Patient Rating of Doctor 4.9

24 Patient Comments

Reviewed on Nov 5, 2018

Everyone at the clinic is very helpful and Dr. Mountis is very caring and I have the greatest confidence in her.

Reviewed on Oct 24, 2018

Dr. Mountis is exceptional. she is unquestionably qualified and knowledgeable. she is thorough, patient and caring. I trust her completely and an very grateful that she is my provider.

Reviewed on Aug 15, 2018

Dr. Maria mantis is a fantastic physician. I wish everybody who had a heart condition like mine would have a chance to interact with her and her team. Cleveland clinic is a class act and I can't say how much I appreciate the support they give me.

Reviewed on Aug 14, 2018

wait times once reception finally checked me in were very good, from nurse to dr to tests and getting monitor we're excellent very efficient

Reviewed on Aug 13, 2018

My provider always talks to me and make me feel like we are both deciding what's going to happen with me

Reviewed on Aug 10, 2018

I had the best possible experience at Dr. Mountis' office. The fellow took so much time with us and really explained things. Dr. Mountis was amazing and has given me so much hope!

Reviewed on Aug 10, 2018

Dr. Mountis has changed my meds and I am already feeling so much better.

Reviewed on Aug 9, 2018

care provider accommodated our travel and got back to us quickly with test results. very pleased.

Reviewed on Jun 28, 2018

Dr Mountes has a wonderful staff

Reviewed on Jun 21, 2018

I love CC, thus far I have had truly exceptional service with CC as a provider. I love Dr. Mountis and her staff! The receptionists are always pleasant and professional...I understand that nothing is perfect...but you guys come pretty close! I appreciate being asked how I feel about my experiences with CC...I have serious health issues, could have been gone...but because of my doctors at CC...I live.

Reviewed on Jun 12, 2018

my only complaint was the hour wait after my appointment time before seeing Dr. Mountis especially after being told she would be in shortly and that was still 15min. prior to the appointment.

Reviewed on May 8, 2018

Dr. Mountis is a very valuable member of the Cleveland Clinic team. She's an excellent clinician, as well as an over-all great listener. She makes me feel like I'm the only patient she has. She has a great bedside manner, which is important to patients. She's great!

Reviewed on Apr 24, 2018

I know this doctor takes time with all patients to make sure they are taken care of correctly.

Reviewed on Apr 20, 2018

Dr. Mountis is Excellent, she is a brilliant clinician, professional, personable, quite invested in her patients and their care. She is extremely meticulous in her gathering of information and applying it to treatment. Her staff is equally as professional and helpful.

Reviewed on Apr 20, 2018

We know that we do have to wait a "bit" to see Dr. Mountis but know that because she spends so much time data collecting with her patients, and are appreciative of that when it is OUR TURN!!!

Reviewed on Apr 10, 2018

I was impressed how fast consults would be the same day the doctor would request the consult.

Reviewed on Jan 26, 2018

Stress test staff - Katrina and assistant (can't recall her name) were great. It was my first stress test and they were very helpful.

Reviewed on Jan 26, 2018

Talking to Dr. Maria Mountis it's like talking to family!

Reviewed on Jan 22, 2018

Dr. Mountis may be the best doctor I've ever seen; She's very thorough and attentive.

Reviewed on Dec 22, 2017

Excellent direction about next steps re reducing carbohydrate intake.

Reviewed on Dec 22, 2017

Everyone is excellent and has good attitude, which is greatly appreciated.

Reviewed on Dec 11, 2017

Dr Mountis is always very detailed when I am in for appointments I love the attention given to myself as a patient...I love Cleveland Clinic!

Reviewed on Dec 8, 2017

she explained more to my husband and myself in the time we were in her office then any doctors in Toledo have explained it to me in the last two months

Reviewed on Dec 7, 2017

*Dr. Mountis is fantastic/truly, a very special doctor and PERSON.

Related Videos Featuring Maria Mountis, DO

Related Videos Featuring Maria Mountis, DO

Back to Top