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Title Department Chairman, Thoracic and Cardiovascular Surgery
Department Thoracic and Cardiovascular Surgery
Primary Location Cleveland Clinic Main Campus
Type of Doctor Adults Only
Languages English
Surgeon Yes
Locations Specialties & Treatments

Treatment & Services

  • Adult Cardiothoracic Surgery
  • Adult Congenital Cardiothoracic Surgery
  • Afib Surgery
  • Aortic Valve Repair
  • Aortic Valve Replacement
  • Aortic Valve Stenosis and Insufficiency
  • Aortic Valve Surgery
  • Atrial Fibrillation Surgery
  • Atrial Septal Defect (ASD) Closure
  • Cardiac Surgery
  • Cardiovascular Disease Surgical Treatments
  • Cardiovascular Surgery Department
  • Coronary Artery Bypass Graft (CABG) Surgery
  • Heart Surgery
  • Heart Valve Repair
  • Heart Valve Replacement
  • Heart Valve Surgery
  • MAZE Surgery
  • Minimally Invasive Aortic Valve Repair
  • Minimally Invasive Cardiac Surgery
  • Minimally Invasive Heart Surgery
  • Minimally Invasive Maze Procedure
  • Minimally Invasive Mitral Valve Repair
  • Minimally Invasive Mitral Valve Surgery
  • Mitral Valve Repair
  • Mitral Valve Replacement
  • Mitral Valve Surgery
  • Patent Foramen Ovale (PFO) Closure
  • Removal of Atrial Myxoma
  • Removal of Cardiac Tumors
  • Removal of Heart Tumors
  • Robotic Cardiac Surgery
  • Robotic Heart Surgery
  • Robotic Heart Valve Surgery
  • Robotic Mitral Valve Surgery/Repair
  • Robotically Assisted Atrial Septal Defect Repair
  • Robotically Assisted Heart Surgery
  • Robotically Assisted Mitral Valve Repair
  • Robotically Assisted Removal of Cardiac Tumors
  • Robotically Assisted Tricuspid Valve Repair
  • Surgical Ablation of Atrial Fibrillation
  • Surgical Procedures for Atrial Fibrillation
  • Surgical Treatment of Adult Acquired Heart Disease
  • Thoracic Surgery
  • Tricuspid Valve Repair
  • Tricuspid Valve Replacement
  • Tricuspid Valve Surgery
  • Valve Surgery
View all 48 Treatment & Services +

Specialty in Diseases & Conditions

  • Abnormal Heart Rhythms
  • Acquired Adult Cardiac Disease
  • Acquired Valve Disease
  • Aortic Regurgitation
  • Aortic Stenosis
  • Aortic Valve Disease
  • Aortic Valve Regurgitation
  • Atrial Fibrillation
  • Atrial Septal Defects
  • Cardiac Tumors
  • Heart Disease
  • Heart Tumors
  • Heart Valve Disease
  • Mitral Fibroelastoma
  • Mitral Stenosis with Insufficiency
  • Mitral Valve Disease
  • Mitral Valve Prolapse
  • Mitral Valve Regurgitation
  • Mitral Valve Stenosis
  • Myxomas
  • Patent Foramen Ovale
  • Pulmonary Valve Disease
  • Rheumatic Heart Disease
  • Tricuspid Regurgitation
  • Tricuspid Stenosis
  • Tricuspid Valve Disease
  • Tricuspid Valve Disorder
View all 27 Specialties +


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About A. Marc Gillinov, MD

Marc Gillinov, MD, is Chairman of the Department of Thoracic and Cardiovascular Surgery in the Sydell and Arnold Miller Family Heart, Vascular & Thoracic Institute at Cleveland Clinic. He is board-certified by the American Board of Surgery and the American Board of Thoracic Surgery. He holds the Judith Dion Pyle Chair in Heart Valve Research.   Dr. Gillinov is chair of the Cardiothoracic Surgical Trials Network (CTSN), an NIH-sponsored network that is the nation's preeminent research enterprise in cardiac surgery.  In addition, he is Surgical Director of the Center for Atrial Fibrillation at Cleveland Clinic.

In response to patients’ questions, Dr. Gillinov worked with Dr. Steven Nissen to write Heart 411: The Only Heart Guide You Will Ever Need. The goal of the book is to help people learn about heart health and live a heart-healthy lifestyle.

Specialty interests: Mitral valve repair, robotic mitral valve surgery, robotic heart surgery, aortic valve replacement, minimally invasive heart surgery, heart valve surgery, heart valve repair.

Number of Procedures Performed: Cleveland Clinic performs more than 4,000 heart surgeries each year. All Cleveland Clinic cardiac surgeons complete between 300-400 cardiac cases per year.  The majority of Dr. Gillinov’s procedures are heart valve procedures, especially mitral valve surgery. Dr. Gillinov performs more mitral valve surgeries each year than any other surgeon in the world.

Success Rates: Cleveland Clinic is nationally and internationally renowned for the world’s best cardiovascular care.  Learn more about our outcomes and statistics

Education and Training:  A Cleveland native and graduate of Hawken School, Dr. Gillinov first worked at Cleveland Clinic in 1978. After a close family member’s successful heart surgery at Cleveland Clinic, Dr. Gillinov became interested in learning more. He spent his summers during high school at Cleveland Clinic, working as a researcher and assistant in the cardiac surgery operating suite.

After graduating summa cum laude from Yale University, Dr. Gillinov entered Johns Hopkins University School of Medicine, where he ranked first in his class. Dr. Gillinov received his clinical and advanced training in general surgery and cardiac and thoracic surgery at The Johns Hopkins Hospital. After completing his education and training, he returned to Cleveland Clinic and joined the cardiac surgery staff in 1997.

Publications and Speaking: Dr. Gillinov is a recognized expert in mitral valve repair surgery, robotic heart surgery and in the study and treatment of patients with atrial fibrillation. He has been instrumental in the development of new, less invasive treatment approaches for patients with mitral valve disease and atrial fibrillation. He has been invited to give hundreds of lectures at hospitals, academic meetings and seminars in the United States and abroad.

Dr. Gillinov has written more than 500 publications, eight continuing medical educational films and contributed over 30 chapters to medical/surgical textbooks. He has been granted patents for several innovations, including a patent disclosing new techniques for valve repair for which he received a Cleveland Clinic Award for Innovation. Dr. Gillinov has been instrumental in ushering in a new era in medicine with his contributions to the scientific development of percutaneous approaches to treating patients with heart valve disease.

Dr. Gillinov is a current or past member of 10 scientific societies, and he has been invited to join the editorial review board or act as an editorial reviewer for 15 scientific periodicals. He is the medical editor of Cleveland Clinic’s Cardiac Consult, and has served on the editorial boards of e-Cleveland Clinic, The Heart Surgery Forum, Innovations, the Journal of Thoracic and Cardiovascular Surgery, and the Journal of Cardiac Surgery.

About Dr. Gillinov: “My greatest strength as a heart surgeon has two components. First, I can tailor the surgical approach to the patient, ranging from robotic and minimally invasive surgery to standard surgery, using the method that is best and safest. Second, I do this with compassion. In every instance and at every decision, I consider what I would want if I were the patient.”

Leisure time activities: In his free time, Dr. Gillinov enjoys playing tennis, running, and taking his children to tennis tournaments around the country.

Education & Professional Highlights

Education & Professional Highlights


Education & Fellowships

Fellowship - Johns Hopkins Hospital
Thoracic Surgery
Baltimore, MD

Residency - Johns Hopkins Hospital
Thoracic Surgery
Baltimore, MD

Residency - Johns Hopkins Hospital
General Surgery
Baltimore, MD

Internship - Johns Hopkins Hospital
General Surgery
Baltimore, MD

Medical Education - Johns Hopkins University School of Medicine
Baltimore, MD

Undergraduate - Yale University
New Haven, CT

Professional Highlights

  • Co-author of "Heart 411: The Only Heart Guide You Will Every Need."
  • Judith Dion Pyle Chair in Heart Valve Research
  • Cleveland Clinic Innovator Award for New Techniques in Mitral Valve Repair
  • Dr. Gillinov has one of the world's largest practices in robotic and minimally invasive mitral valve repair surgery


  • Thoracic Surgery - Thoracic and Cardiac Surgery

Specialty Interests

Mitral valve repair, robotic mitral valve surgery, robotic heart surgery, aortic valve replacement, minimally invasive heart surgery, heart valve surgery, heart valve repair, atrial fibrillation

Awards & Honors

  • Chair, Department of Thoracic and Cardiovascular Surgery, Cleveland Clinic
  • Board Member, Mitral Foundation
  • Board Member, AATS Foundation
  • 2024 - Program Chair, AATS
  • 2019-present - Chair, NIH-Funded Cardiothoracic Surgery Trials Network, the world's largest research initiative in cardiac surgery
  • 2022, 2023 - Mitral Valve Reference Center Award of Excellence as Reference Mitral Surgeon
  • 2007-2023 - Best Doctors, Cleveland Magazine
  • 2008 - present The Judith Dion Pyle Chair in Heart Valve Research
  • 2007 - present Co-Principal Investigator, NIH Network for Cardiothoracic Surgical Investigations
  • 2005 - present Principal Investigator, Atrial Fibrillation Innovation Center
  • 2005, 2007 Cleveland Clinic Innovator Award for New Techniques in Mitral Valve Repair

Innovations & Patents

  • Dr. Gillinov has been integral to the development of several new technologies in the management of heart disease. These include:Percutaneous mitral valve repair
  • Automated creation of artificial chords for minimally invasive surgical mitral valve repair
  • Left atrial appendage exclusion in atrial fibrillation
  • Minimally invasive approaches to ablation of atrial fibrillation
  • Novel technologies for minimally invasive surgical drainage systems


  • Key Memberships include:American Association for Thoracic Surgery
  • Society of Thoracic Surgeons
  • Heart Valve Society
  • International Society for Minimally Invasive Cardiac Surgery
Research & Publications

Research & Publications

See publications for A. Marc Gillinov, 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 7/4/2024, Dr. Gillinov 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. Gillinov 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:

  • Abbott Laboratories
  • Clear Catheter Systems, Inc.
  • Edwards Lifesciences LLC
  • Medtronic plc

Royalty Payments. Dr. Gillinov receives or has the right to receive royalty payments for inventions or discoveries commercialized through the companies shown below:

  • Clear Catheter Systems, Inc.

Right to Future Distribution of Cleveland Clinic Financial Interest. Dr. Gillinov may receive future financial benefits from the Cleveland Clinic for inventions or discoveries commercialized through the companies shown below:

  • Clear Catheter Systems, 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

164 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
Patient Rating of Doctor 5

21 Patient Comments

Reviewed on Jun 13, 2024

Dr. Gillinov was very kind, informative, personable, and easy to talk with.

Reviewed on Jun 13, 2024

Dr. Gillinov's staff was excellent to work with.

Reviewed on May 23, 2024

Best doctors!

Reviewed on May 17, 2024

Dr. Gillanov and his entire team are top notch excellent in every way.

Reviewed on Apr 10, 2024

Dr Gillinov was wonderful. It was a very scary procedure if me but he explained everything. I knew I was in good hands.

Reviewed on Mar 25, 2024

Dr. Marc Gillinar was excellent, courteous, pleasant, personable, caring & expert.

Reviewed on Mar 25, 2024

Dr. Marc Gillinov is an awesome surgeon, the best of the best. I received excellent care from the entire care team.

Reviewed on Mar 11, 2024

Very skilled and knowledgeable. Best doctors I could have had. The very best. CARE IS EXEMPLARY. I am a doctor and feel uniquely qualified to asses care (teamwork).

Reviewed on Mar 11, 2024

I was in and out of ICU. The Nurses care did a great job of explaining Dr. Gillinov's instructions and plan for my care.

Reviewed on Feb 12, 2024

Dr. Gillinov was outstanding and very responsive. He would respond via e-mail within an hour post surgery.

Reviewed on Jan 29, 2024

Dr. Marc Gillinov took time and explained everything. He was truly amazing! The other physicians & NP's were great. It was a fantastic experience.

Reviewed on Dec 16, 2023

Dr. Gillonov kept me informed of my condition and what was inspected. Great doctor.

Reviewed on Oct 3, 2023

*Dr. Mare Gillinov was excellent. You are very fortunate to have him on your staff.

Reviewed on Sep 27, 2023

We are extremely happy that Dr Gillinov will be involved with the surgery. He never rushed the discussion, but explain very clearly the process. Although the diagnose by Dr Griffinthis year was that Shan needs a surgery, and that was a big shock to us, having Dr Gillinov is a member of the surgery team gives us very high confidence of the ultimate success.

Reviewed on Aug 23, 2023

Excellent physician! Very knowledgeable and caring.

Reviewed on Aug 8, 2023


Reviewed on Jul 28, 2023

*Dr. Gillinos and his team - excellent!

Reviewed on Jul 10, 2023

Nurse Practice Manager, Kim, was wonderfully responsive and helpful over a period of several months by phone, culminating in my sit down consultation appointment with Dr. Gillinov on 7/10/2023.

Reviewed on Jul 10, 2023

Dr. Gillinov was direct, thorough, and compassionate in our consultation on 7/10/2023 about next day surgery as well as some elements of risk and the subsequent recovery period.

Reviewed on Jul 5, 2023

Dr. Gillinov was excellent every step of the way. He proactively explained the entire procedure, then gave us the opportunity to ask any questions. Highly recommend!

Reviewed on Jul 5, 2023

I think *Dr. Gillinov is a very wonderful surgeon & very knowledgeable, and genuinely a very caring person. My personal experience was somewhat tainted due to a few complications that I did not expect.

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