alert icon COVID-19 INFO

Coming to a Cleveland Clinic location?
Visitation, mask requirements and COVID-19 information

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 +


Is Cleveland Clinic Part of Your Insurance?

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

View All Plans

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 as a paid consultant, speaker or member of an advisory committee for the following companies:

  • Alnylam Pharmaceuticals, Inc.
  • Akcea Therapeutics
  • 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

85 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 5
Patient Rating of Doctor 4.9

22 Patient Comments

Reviewed on Aug 19, 2022

He is the best of the best! I am so fortunate that he is my doctor

Reviewed on Feb 9, 2022

Dr. Hanna has compassion as a professional, he make sure I understand the process & direction of healing my heart. I can appreciate the education provided as he takes care of me. Thank You

Reviewed on Jan 26, 2022

Dr. Hannah was wonderful!

Reviewed on Jan 25, 2022

Excellent, I have all the faith in the world in Dr Mazen Hanna

Reviewed on Jan 19, 2022

Dr. Hanna was very professional! He explained things about my medical conditional very well and in terms I could understand. My experience with the Dr. Was very informative!

Reviewed on Dec 20, 2021

Dr. Hanna and Dr. Valent are excellent in patient care. They are both incredibly knowledgeable and take the time to answer any questions.

Reviewed on Dec 20, 2021

Dr. Hanna's nurse were professional and caring. It's always a pleasure talking with them.

Reviewed on Dec 20, 2021

Dr. Hanna is a very professional and highly skilled doctor, one of the best, if not the best I have ever met. He clearly presents and step by step discusses what the issues are and what needs to be done. He asks questions intermittently to make sure that his explanations are well understood. My son and I feel very comfortable talking with him. He is comforting and yet firm professionally. He is an excellent doctor.

Reviewed on Dec 8, 2021

Dr Hanna and staff were very thorough.

Reviewed on Dec 3, 2021

I have enjoyed my relationship with Cleaveland Clinic and Dr. Hanna.

Reviewed on Dec 2, 2021

Dr Hanna saw me just hours after I messaged him regarding a concern with SOB. He cares for his patients and it shows. He contacted me over the weekend for updates on my condition and asked about any changes. Follow-up is great.

Reviewed on Nov 10, 2021

Dr Hanna is always respectful and caring. I am thankful he is my doctor.

Reviewed on Nov 3, 2021

I appreciate all the people at the Cleveland clinic for the care I received during my time at the clinic. I appreciate Dr Hanna , his directness and his knowledge of my disease.

Reviewed on Nov 3, 2021

Dr Hanna is an exceptional practitioner. I always feel as though he cares for me as a person as he checks my chart and inquires about all recent health concerns realizing that it all impacts my general health. He also includes me in my care plan and makes sure that I understand both his diagnosis and treatment. I therefore feel a sense of empowerment and involvement in my health.

Reviewed on Nov 3, 2021

Dr. Hanna des an amazing job explain everything in a way I can understand, and is very good at listening and addressing my questions.

Reviewed on Oct 18, 2021

I started seeing Dr. Mazen Hannah before my H/T and he guided me through some very tough times with my health. I could tell from the beginning that when I was being examined by him that his focus was all on me and my condition during my visits. Through 10+ years he has kept a " Finely Tuned " medication regimen for me. He excells in the abilty to know the past, current, and possible future effects of my meds. During the interruption caused by Covid I had not seen Dr. Hannah since 2019 and it was a great pleasure to visit with him again. Thank you sir. I wish you well.

Reviewed on Oct 12, 2021

Doctor Hannah is a very good doctor and I have A lot of confidence in what he does in his work and what he prescribes for me.

Reviewed on Sep 29, 2021

Dr. Hanna will always get back to my calls or send a message by his nurse.

Reviewed on Sep 29, 2021

Dr.Hanna is a great physician and I am very happy with him.

Reviewed on Sep 29, 2021

Dr. Hanna was excellent in explaining everything and the entire visit.. He eased my concerns and suggested a blood test and visiting with a preventative Cardiologist.

Reviewed on Sep 29, 2021

Dr. Hanna was super in every way.

Reviewed on Sep 27, 2021

Dr. Hanna is fantastic, and his assistants were very courteous and attentive to my needs.

Back to Top