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

Cleveland Clinic Main Campus


Additional Locations

Specialties & Treatments

Treatment & Services

  • Advanced Ischemic Heart Disease Center
  • Biventricular Pacemaker
  • Cardiac Amyloid Imaging
  • Cardiac Transplant
  • Cardiology
  • Cardiovascular Medicine
  • Cardiovascular Medicine Department
  • Endomyocardial Biopsy
  • George M and Linda H Kaufman Center for Heart Failure
  • Heart Biopsy
  • Heart Failure Management
  • Heart Failure Section
  • Heart Transplant
  • Mechanical Assist Devices
  • Mechanical Circulatory Support
  • Pericardial Diseases Center
  • Pre-Transplant Evaluation
  • Transplant
  • Ventricular Assist Device
View all 19 Treatment & Services +

Specialty in Diseases & Conditions

  • Amyloid Sarcoid Heart Disease
  • Amyloidosis
  • 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
  • Myocarditis
  • Nonischemic Cardiomyopathy
  • Pulmonary Hypertension
  • Restrictive Cardiomyopathy
  • Sarcoid Heart Disease
  • Shortness of Breath
View all 23 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 5/16/2022, 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 (or, in rare cases, equity or stock options) as a paid consultant, speaker or as a member of an advisory committee for the following companies:

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

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

137 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
5 out of 5
Explains 4.9
Listens 4.7
Courtesy, Respect & Concern 5
Patient Rating of Doctor 5

40 Patient Comments

Reviewed on Aug 23, 2023

Dr. Hanna was great! He reviewed all of my records from another office and explained everything to me. He also reached out to me by telephone on a Sunday to provide additional information about my condition and recommendations. I was so impressed that he reached out to me with additional information. I have always heard that the Cleveland Clinic is the best and I have to agree that it is excellent.

Reviewed on Aug 23, 2023

I am blessed through an organization I belong to, Legatus, through which I am a member of a healthnetwork. Olivia Wagner from HealthNetwork contacted Victoria Thomas the patient relations specialist at patient's plus and connected me with the best of the best cardiologist for my very newly found condition. Kelly in Dr. Hannahs office has also been very helpful. I met with Dr. Hanna in person for nearly an hour and a second meeting virtually. We're moving right along and I'm thinking very positive in his good hands as my professional and very knowledgeable Cardiologist.

Reviewed on Aug 23, 2023

Dr. Hanna and his office deserve to be the center of excellence they are

Reviewed on Aug 23, 2023

In addition to Dr. Hanna and his wonderful staff the patients plus folks are incredibly helpful and knowledgeable

Reviewed on Aug 21, 2023

Dr Hanna is the best as far as we're concerned.

Reviewed on Aug 18, 2023

It is a pleasure working with Dr Hanna

Reviewed on Aug 18, 2023

Dr Mazen Hanna is one of your greatest assets he is a well educated and experienced doctor.

Reviewed on Aug 17, 2023

Outstanding. I was very impressed with Dr. Hanna. Very professional. He made us feel comfortable,3

Reviewed on Aug 16, 2023

Dr Hanna is the most compassionate, knowledgeable, personable, who takes the time to listen to me absolutely the best physician I have ever known

Reviewed on Aug 16, 2023

Dr Hanna and his support staff have been great.

Reviewed on Aug 14, 2023

Dr Hanna took all of the time we needed to answer all of our questions. He was professional and caring.

Reviewed on Jul 3, 2023

The nurse and doctor answered important questions that I asked.

Reviewed on Jun 30, 2023

Dr. Hanna was very responsive to any questions. He took his time in explaining my condition and test results!Dr. Hanna continues to go above and beyond our expectations in the care he administers.

Reviewed on Jun 23, 2023

Excellent consultation with Dr Hanna

Reviewed on Jun 23, 2023

Dr. Hanna is an exceptional Doctor. Very kind and he genuinely cares about his patients and doing everything in his power so they get the best possible outcome. He listens and takes whatever you have to say into consideration when making a game plan for your treatment plan. I'd recommend to anyone and everyone who has a heart condition

Reviewed on Jun 12, 2023

Dr. Hanna has been amazing in explaining my condition, treatment improvements in this area, and options for my treatment. I'm thankful for his expertise.

Reviewed on Jun 7, 2023

Dr. Hanna is a great doctor!

Reviewed on Jun 2, 2023

Dr Hanna was excellent!

Reviewed on Jun 2, 2023

Dr Hanna was terrific.

Reviewed on May 30, 2023

Dr. Hanna was prompt, enthusiastic, and professional

Reviewed on May 19, 2023

Dr Hanna explained my disease and made me feel better about it and my possible outcome

Reviewed on May 19, 2023

Very fortunate to be at Cleveland Clinic and Dr Hanna

Reviewed on May 17, 2023

Dr Hanna is the Best

Reviewed on May 1, 2023

I am so impressed with Dr Hanna that I am happy to drive from Detroit every two weeks for appointments

Reviewed on Apr 25, 2023

Very pleased with the thoroughness of the information given & concern of the doctor re my health.

Reviewed on Apr 20, 2023

Dr. Hanna was beyond words an extremely knowledgeable and caring practitioner. We would rate him absolutely excellent.

Reviewed on Apr 19, 2023

Dr Hanna took the time to explain my issues in an informative and comprehensive manner.

Reviewed on Apr 13, 2023

Dr.Mazen a real professional

Reviewed on Apr 10, 2023

Dr. Hanna is in Cleveland clinic, we are coming from Dayton Ohio, if he not there, will go another place , very good Doctor

Reviewed on Apr 7, 2023

Dr. Hanna is the best Dr. I have ever had .

Reviewed on Apr 7, 2023

The doctors were very compassionate and professional.

Reviewed on Apr 6, 2023

Dr. Hanna is very patient; very positive. I always feel better when I leave his presence.

Reviewed on Apr 5, 2023

Dr Hanna was awesome!

Reviewed on Mar 31, 2023

Excellent doctor office staff.

Reviewed on Mar 31, 2023

Dr. Hanna is an excellent physician. Thoroughly explains health problems/situations and proposed treatments. Truly cares about his patients. Studies their files and tests from other providers to understand and make judgements about the patient's care.

Reviewed on Mar 31, 2023

Dr. Hanna is an excellent Physician. He is highly professional, caring skilled, and respectful. Having him as my Cardiologist, is a blessing.

Reviewed on Mar 31, 2023

In all Dr. Hanna, the nurses and the other staff members excellently performed their duties!!

Reviewed on Mar 17, 2023

Dr Hanna was excellent in providing the explanations needed. Very personable.

Reviewed on Mar 17, 2023

Dr Mazen gives great comfort with his knowledge and strategy for addressing medical condition

Reviewed on Feb 15, 2023

Great Doctor

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