Emergency icon Important Updates
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
  • Ventricular Assist Device
View all 18 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 +


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

Fellowship - MetroHealth Medical Center
Cleveland, OH

Residency - Baylor College of Medicine
Internal Medicine
Houston, TX

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

Internship - Baylor College of Medicine
Internal Medicine
Houston, TX

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

Undergraduate - Cornell University
Ithaca, NY


  • 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 9/25/2023, 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:

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

263 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 4.8
Courtesy, Respect & Concern 5
Patient Rating of Doctor 5

61 Patient Comments

Reviewed on May 15, 2024

I am extremely impressed with Dr. Mazen Hanna and Amanda Mitchell has also been very helpful.

Reviewed on May 13, 2024

A well deserved 'WELCOME BACK' goes to Dr. Hanna upon his return as my primary cardiac physician. He has treated my heart condition for 15 years. He was assigned to me after my heart attack in 2009 and stayed with me through my heart transplant in 2019 until his short leave of absence. He always discusses heart related issues on my level and shows a concern for me a patient. To him, I am not just a number but as a human being in need. Thank you Dr. Hanna!!!!!!

Reviewed on May 8, 2024

Dr. Hanna is excellent professionally and personally in his interactions

Reviewed on May 7, 2024

Dr. Hanna knows his job and is a heart expert!

Reviewed on May 3, 2024

We really like the doctor

Reviewed on May 1, 2024

Dr Hanna is Outstanding.

Reviewed on Apr 30, 2024

I have been seeing Dr. Hanna since 2017 and he always does a good job of explaining results of testAnd the treatment for my condition.

Reviewed on Apr 24, 2024

Dr Hanna & staff, as I said before, were outstanding!

Reviewed on Apr 24, 2024

Dr. Hanna is professional, very knowledgeable and empathetic. I am fortunate he is my cardiologist.

Reviewed on Mar 29, 2024

I appreciate that Dr. Hanna took the time to Inform me concerning the results of all my tests and answered all my questions.

Reviewed on Mar 7, 2024

Dr. Hanna is very caring, professional and passionate about his work. He explains everything in an absolutely clear and detailed way. He is the best Cardiologist I have ever met.

Reviewed on Feb 7, 2024

Dr Hanna is direct, professional, personable, very caring & kind. Gracious and polite as well. I am very happy & "safe" under his care

Reviewed on Feb 1, 2024

I am very lucky to have Dr Hanna as my physician

Reviewed on Jan 19, 2024

Dr Hanna provided excellent care for me, very personable, knowledgeable and professional.

Reviewed on Jan 19, 2024

Dr. Hanna is an absolute rock star! In every interaction he is extrodinary.

Reviewed on Jan 5, 2024

Dr Hanna is amazing, caring and professional.

Reviewed on Jan 3, 2024

Dr Hannah is very good very respectful very professional, and he's famous

Reviewed on Dec 21, 2023

Doctor hannah is one of the best doctors i've ever had

Reviewed on Dec 18, 2023

Was able to get an appointment with Dr. Hanna right after seeing Dr. Harb. That was amazing!

Reviewed on Dec 18, 2023

Dr Hanna is a star.

Reviewed on Dec 18, 2023

Was impressed with what dr Hannah had to. Say he was very thrown and. Clear what he was imparting to me I drew the conclusion that. He is. Very knowledgeable in his field of expertise

Reviewed on Dec 13, 2023

Dr Hanna is very straightforward while being amazingly talented. The most competent physician I have ever had.

Reviewed on Dec 5, 2023

Dr. Hanna's staff was extremely professional, courteous, helpful, and available. Everyone that I encountered at the Cleveland clinic was top notch !

Reviewed on Dec 5, 2023

Dr. Hanna is one of the best physicians I've ever had to deal with. He's extremely knowledgeable, helpful, sensitive, caring and understanding about my disease, me and makes recommendations to improve the quality of my life.

Reviewed on Dec 4, 2023

I know I'm not an easy patient to deal with. I've raised complaints and concerns about Doctors and nurses in the past. I'm very straightforward. I cannot say I have any issues with Dr. Hanna and his nurses. Very polite, professional, respectful. I treat people how they treat me. It doesn't matter to me what their title or name is. I would think Dr. Hanna and his team would say the same about me.

Reviewed on Dec 4, 2023

Excellent doctor

Reviewed on Dec 1, 2023

He's a great doctor and always take as much time as needed for you to understand

Reviewed on Dec 1, 2023

Dr. Hanna always listens, explains, and spends whatever time is needed to address my concerns.

Reviewed on Nov 29, 2023

Dr Hanna is the best He explains everything in clear terms to me and my family Never makes you feel rushed Would definitely recommend

Reviewed on Nov 22, 2023

Dr Hanna is a very kind, considerate, physician and, from what I can deduce, a highly intelligent and informed doctor. I would recommend him to members of my family that might need a cardiologist.

Reviewed on Nov 10, 2023

Dr Hanna was amazing! He took his time discussing my heart issues and was very comforting.and caring.

Reviewed on Nov 10, 2023

Doctor was excellent in all aspects

Reviewed on Oct 12, 2023

Dr Hanna is someone that truly listens amd very caring towards his clients . I am so grateful in being able to have a Doctor with so much medical experience and Knowledge and in being under his medical care And thank you Cleveland Clinic for the great service you provide to people world wide .

Reviewed on Oct 12, 2023

Dr Hanna was very knowledgeable and caring. I am so grateful to be under his medical care and assistance .

Reviewed on Sep 22, 2023

I could not ask for better care then that which I have received under Dr. Hanna's care and his team

Reviewed on Sep 22, 2023

Great Doctor and always a great experience!

Reviewed on Sep 12, 2023

Dr. Hanna is exremely knowledgable and sincere cardiologist. He definitely contributes to Cleveland Cli nic being the number one heart hospital in the country. I am so thankful for the excellent care I received!

Reviewed on Sep 12, 2023

Dr Hanna was as impressive as his credentials! I am very pleased to be in his care with wATTR.

Reviewed on Sep 11, 2023

Dr Hanna nothing but the best in all dimensions of patient care.

Reviewed on Sep 7, 2023

The degree to which Dr. Hanna cared and cares is absolutely astounding and excellent!

Reviewed on Aug 31, 2023

Dr. Hanna requested the visit. I am a new patient and newly diagnosed. He previously met with me for over an hour in person, I then watch the very informational zoom presentation on the 29th with my family, which led to some questions. To gain the clarity, he reached out to me. It was very easy to follow the instructions and then meet remotely. We met for about a half hour.

Reviewed on Aug 31, 2023

I would always rather meet in person, but this is not always practical. For one thing I live in St. Louis, MO. And having first met Dr M Hanna in person, and lead to our being very productive via the zoom.

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.

Back to Top