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

Cleveland Clinic Main Campus

Specialties & Treatments

Treatment & Services

  • Advanced Ischemic Heart Disease Center
  • Biventricular Pacemaker
  • cardiac transplant
  • Cardiac Transplantation
  • Cardiology
  • Cardiovascular Medicine
  • Cardiovascular Medicine Department
  • Endomyocardial Biopsy
  • George M & Linda H Kaufman Center for Heart Failure
  • Heart Biopsy
  • Heart Failure Management
  • Heart Failure Section
  • Heart Transplantation
  • Mechanical Assist Devices
  • Pericardial Diseases Center
  • Pre-Transplant Evaluation
  • Transplant
  • Ventricular Assist Device
View all 18 Treatment & Services +

Specialty in Diseases & Conditions

  • Amyloid Sarcoid Heart Disease
  • Amyloidosis
  • Cardiac Amyloid Imaging
  • Cardiac transplant
  • Cardiomyopathy
  • Cardiomyopathy Secondary to Chemotherapy
  • Cardiomyopathy Valvular
  • Congestive Heart Failure (CHF)
  • Dilated Cardiomyopathy
  • Ejection Fraction
  • Ejection Fraction - Abnormal
  • Enlarged Heart
  • Familial Amyloidosis
  • Familial Cardiomyopathy
  • Heart Failure
  • Heart Failure In Women
  • Hypertrophic Cardiomyopathy
  • Infiltrative Cardiomyopathy
  • Ischemic Cardiomyopathy
  • Mechanical Circulatory Support
  • Myocarditis
  • Nonischemic Cardiomyopathy
  • Pulmonary Hypertension
  • Restrictive Cardiomyopathy
  • Sarcoid Heart Disease
  • Shortness Of Breath
View all 26 Specialties +


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About Mazen Hanna, MD

Dr. Hanna is a staff cardiologist in the Section of Heart Failure and Cardiac Transplantation Medicine in the Sydell and Arnold Miller Family Heart, Vascular & Thoracic Institute.  He is Director of the Heart Failure Intensive Care Unit and Co-Director of the Amyloid Program.  He is board certified in Internal Medicine, Cardiology, and Advanced Heart Failure and Transplant by the American Board of Internal Medicine.  Dr. Hanna performs right and left heart catheterization as well as endomyocardial biopsy.  

In addition to office visits, Dr. Hanna also offers scheduled 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: Cardiomyopathy, heart failure, heart transplantation and mechanical circulatory assist devices, pulmonary hypertension, and cardiac amyloid.

Education and Training: Dr. Hanna is a native of Cleveland and grew up in Pepper Pike, Ohio.  He received his Bachelor of Arts degree from Cornell University in Ithaca, New York where he majored in Psychology. He received his Medical Degree from The Ohio State University and went on to do his Internal Medicine training at the Baylor College of Medicine in Houston, Texas where he received the Outstanding Medical Resident Teacher Award.  He came back to Cleveland to do his Cardiology Fellowship training at Case Western Reserve University, MetroHealth Campus where he was appointed Chief Cardiovascular Fellow.  He completed his training with a one year Advanced Fellowship in Heart Failure and Cardiac Transplantation at the Cleveland Clinic.   He was appointed as a staff cardiologist in 2006.  

Education & Professional Highlights

Education & Professional Highlights


Education & Fellowships

Fellowship - Cleveland Clinic
Heart Failure/Transplant
Cleveland, OH USA

Fellowship - MetroHealth Medical Center
Cleveland, OH USA

Residency - Baylor College of Medicine
Internal Medicine
Houston, TX USA

Residency - Mount Sinai School of Medicine
Internal Medicine
New York, NY USA

Internship - Baylor College of Medicine
Internal Medicine
Houston, TX USA

Medical Education - The Ohio State University College of Medicine and Public Health
Columbus, OH USA

Undergraduate - Cornell University
Ithaca, NY USA


  • Internal Medicine - Advanced Heart Failure and Transplant Cardiology

Specialty Interests

Cardiomyopathy, heart failure, heart transplantation, ventricular assist device, myocardial biopsy, cardiac catheterization, cardiac amyloid, pulmonary hypertension

Awards & Honors

  • Baylor College of Medicine, Outstanding Medical Resident Teacher Award (2000-2001)
  • Case Western Reserve University, Metrohealth Campus, Chief Cardiovascular Fellow (2004-2005)
Research & Publications

Research & Publications

See publications for Mazen Hanna, 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 6/2/2021, Dr. Hanna 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. Hanna receives fees of $5,000 or more per year as a paid consultant, speaker or member of an advisory committee for the following companies:

  • Akcea Therapeutics
  • Eidos Therapeutics
  • Pfizer, Inc.
  • Alnylam Pharmaceuticals, 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

169 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 5
Courtesy, Respect & Concern 4.9
Patient Rating of Doctor 4.9

37 Patient Comments

Reviewed on Aug 20, 2021

I requested to see Dr Hanna. I previously worked at Main campus in cardiology. I was always impressed with his patient care and dedication. He has shown me that same dedication with my care.

Reviewed on Aug 16, 2021

We have the greatest respect for Dr. Hanna, and have been seeing him for many years now. I credit him with saving my life. I would never go to any other doctor.

Reviewed on Aug 11, 2021

Dr Hanna and his staff were professional, competent and generous with their time.If I could have given a higher grade, I would have.

Reviewed on Aug 11, 2021

I appreciate Dr Hanna and his associates. Extremely knowledgeable and very professional. Wiling to answer all questions.

Reviewed on Jul 14, 2021

Great toSee Dr. Hanna

Reviewed on Jul 14, 2021

Dr Hanna is world class!

Reviewed on Jul 12, 2021

Dr. Hanna was very patient and attentive to my concerns. He told me he would answer any questions I had. Dr. Hanna confirmed all my questions had been answered as we ended my visit. I feel I have the best treatment available. Thanks to Cleveland Clinic and Dr. Hanna and his team!

Reviewed on Jul 12, 2021

Dr. Hanna was exceptional; he was very respectful, explained everything very thoroughly (in layman terms I could understand, and was very empathic.

Reviewed on Jul 9, 2021

Going for knee surgery need cardiac clearance.Dr. Hanna's office arranged all my needed appointments. Thanks

Reviewed on Jun 28, 2021

Dr Hanna always knows what to do. He has turned my life around.

Reviewed on May 5, 2021

Dr. Hanna is the best, love him

Reviewed on Apr 26, 2021

I have been a patient of Dr. Hanna for over two years, his approach and care to my condition has been outstanding and I could not be more satisfied.

Reviewed on Apr 21, 2021

Dr. Hanna is a great doctor. I would recommend him to anyone with a heart problem.

Reviewed on Apr 21, 2021

Always uplifting to hear from Dr Hanna

Reviewed on Apr 21, 2021

Would definitely recommend Dr Hanna

Reviewed on Apr 14, 2021

Fabulous doctor, wonderful experience!

Reviewed on Apr 13, 2021

I absolutely trust Dr. Hanna. He seems genuinely concerned with my welfare, takes all the time I need or want during my appointments. I can't figure out how I was fortunate to get him as my cardiologist.

Reviewed on Apr 9, 2021

I always have the best doctors and team Great Care

Reviewed on Apr 7, 2021

All support staff extremely polite and helpful. My Doctor was excellent and I received the best heart exam ever.

Reviewed on Mar 26, 2021

Dr Hanna and his staff were extremely professional and caring

Reviewed on Mar 10, 2021

Dr. Hanna and Nurse Daniell are an excellent Team. They care a lot! They are very compassionate and very good at what they do!!!

Reviewed on Mar 8, 2021

Dr. Hanna has an excellent bedside manner and always explains things well.

Reviewed on Feb 24, 2021

Dr T was excellent, Dr Hanna was outstanding

Reviewed on Jan 27, 2021

I had not seen Dr. Hanna for some time. With his access to MyCharts, he was updated as to my health. Made the visit more productive.

Reviewed on Jan 4, 2021

doctor was excellent

Reviewed on Dec 15, 2020

I felt as though the Dr was talking down to me. I have been in the health field for over 20 years. When speaking to the Dr in medical terminology he suggested I didn't know what I was talking about. i don't believe he read my chart thoroughly before our visit. He didn't seem to know why I was admitted to CCF or that I was admitted previously.

Reviewed on Dec 9, 2020

dr Hanna is the best !!!!!

Reviewed on Dec 9, 2020

Dr.Hanna was thorough and compassionate . His assistant Kim was extremely kind and helpful as well.

Reviewed on Dec 2, 2020

Dr Hanna is like a brother to me.

Reviewed on Nov 27, 2020

my experience with Dr. Hanna and the nurses was excellent. I thank them for the great job they do.

Reviewed on Nov 25, 2020

Dr Hanna explained all the treatment options with my daughter and I In a way we could understand

Reviewed on Nov 23, 2020

Dr.Hanna is a new doctor for me after discovering I now have a heart condition. Hebis very knowledgeable, caring and concern. I appreciate him.

Reviewed on Nov 18, 2020

Dr Hanna is there in Cleveland clinic, we come from Dayton OH , he is wonderful doctor

Reviewed on Nov 18, 2020

my experience was awesome. I was so happy to see Dr Hanna . He's my best doctor ever.

Reviewed on Nov 16, 2020

I a very impressed with Dr. Hanna and very grateful to him. He went out of his way for me.

Reviewed on Nov 4, 2020

Dr. Hanna is the one I trust the most.

Reviewed on Nov 4, 2020

I have complete faith in *Dr. Hanna.

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