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Department Thoracic and Cardiovascular Surgery
Primary Location Cleveland Clinic Main Campus
Type of Doctor Adults Only
Languages English
Surgeon Yes
Cleveland Clinic Main Campus
Primary Location

Cleveland Clinic Main Campus

Specialties & Treatments

Treatment & Services

  • Adult Cardiothoracic Surgery
  • Aorta Surgery
  • Aortic Dissection Repair
  • Aortic Valve Repair
  • Aortic Valve Replacement
  • Aortic Valve Surgery
  • Artificial Heart
  • Atrial Septal Defect (ASD) Closure
  • Bypass Surgery
  • Bypass Surgery Re-operation
  • Cardiac Surgery
  • Cardiac Transplant
  • Cardiovascular Disease Surgical Treatments
  • Cardiovascular Surgery Department
  • Cardiovascular Surgery Section
  • Complex Aorta Surgery
  • Coronary Artery Bypass Graft (CABG) Surgery
  • Coronary Artery Reoperation
  • Extracorporeal Membrane Oxygenation (ECMO)
  • Heart Failure Surgery
  • Heart Surgery
  • Heart Surgery Reoperation
  • Heart Transplant
  • Heart Valve Disease - Percutaneous Interventions
  • Heart Valve Repair
  • Heart Valve Replacement
  • Heart Valve Surgery
  • Infective Endocarditis Surgery
  • Left Ventricular Assist Device (LVAD)
  • MAZE Surgery
  • Minimally Invasive Aortic Valve Repair
  • Minimally Invasive Aortic Valve Replacement
  • Mitral Valve Replacement
  • Mitral Valve Surgery
  • Myomectomy
  • Partial Artificial Heart
  • Percutaneous Valve Repair
  • Percutaneous Valve Replacement
  • Pericardiectomy
  • Pericardium Surgery
  • Pulmonary Embolism Surgery
  • Pulmonic Valve Replacement
  • Removal of Atrial Myxoma
  • Removal of Cardiac Tumors
  • Reoperation Surgery
  • Reoperation Valve Surgery
  • Reoperative Heart Surgery
  • Repair of Aortic Aneurysms
  • Surgical Ablation of Atrial Fibrillation
  • Surgical Treatment of Adult Acquired Heart Disease
  • Surgical Treatment of Valve Endocarditis
  • Thoracic Aortic Aneurysm Repair
  • Thoracic Aortic Aneurysm Surgery
  • Thoracic Aortic Dissection Repair
  • Thoracic Surgery
  • Thoracic Surgery Section
  • Transcatheter Aortic Valve Replacement (TAVR)
  • Tricuspid Valve Repair
  • Tricuspid Valve Replacement
  • Tricuspid Valve Surgery
  • Ventricular Assist Device
View all 61 Treatment & Services +

Specialty in Diseases & Conditions

  • Acquired Adult Cardiac Disease
  • Acquired Valve Disease
  • Advanced Ischemic Heart Disease
  • Amyloidosis
  • Aorta Disease
  • Aortic Aneurysms
  • Aortic Dissection
  • Aortic Insufficiency
  • Aortic Regurgitation
  • Aortic Stenosis
  • Aortic Valve Disease
  • Aortic Valve Regurgitation
  • Arrhythmogenic Right Ventricular Dysplasia
  • Atrial Fibrillation
  • Atrial Septal Defects
  • Carcinoid Syndrome
  • Cardiomyopathy
  • Connective Tissue Disorders
  • Constrictive-Pericarditis
  • Coronary Artery Disease
  • Dilated Cardiomyopathy
  • Endocarditis
  • Heart Disease
  • Heart Failure
  • Heart Related Illnesses
  • Heart Valve Disease
  • Hypertrophic Cardiomyopathy
  • Infective Endocarditis
  • Ischemic Cardiomyopathy
  • Mitral Valve Disease
  • Mitral Valve Prolapse
  • Mitral Valve Regurgitation
  • Mitral Valve Stenosis
  • Myxomas
  • Pericarditis
  • Pulmonary Embolism
  • Pulmonary Hypertension
  • Pulmonary Valve Disease
  • Pulmonic Regurgitation
  • Pulmonic Stenosis
  • Restrictive Cardiomyopathy
  • Rheumatic Heart Disease
  • Superior Vena Cava Syndrome
  • Thoracic Aortic Aneurysm
  • Tricuspid Regurgitation
  • Tricuspid Stenosis
  • Tricuspid Valve Disease
  • Ventricular Aneurysm
View all 48 Specialties +


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About Aaron Weiss, MD, PhD

Aaron Weiss, MD, PhD,  is a cardiac (heart) surgeon in the Department of Thoracic and Cardiovascular Surgery of the Sydell and Arnold Miller Family Heart, Vascular & Thoracic Institute. He sees patients at Cleveland Clinic Main Campus.

Specialty Interests: Adult cardiac surgery, complex cardiac surgery, reoperative cardiac surgery, heart transplant, ventricular assist devices, heart failure (CHF), extracorporeal membrane oxygenation (ECMO), heart valve repair and replacement, coronary artery bypass graft surgery (CABG), aortic surgery, endocarditis (infection of the heart and valve inner lining)

Experience and Outcomes: Cleveland Clinic performs more than 4,000 heart surgeries each year. All Cleveland Clinic cardiac surgeons complete between 300-400 cardiac cases per year.

Success rates: Among top US hospitals for cardiac surgery, Cleveland Clinic’s volume is the highest with the best quality outcomes. You can view success rates for specific procedures at http://my.clevelandclinic.org/heart/about-heart-vascular-institute/treatment-outcomes.aspx

Education: Dr. Weiss earned his medical degree from Icahn School of Medicine at Mount Sinai, New York and  completed a six-year integrated residency in cardiothoracic surgery there. He currently is a PhD candidate in clinical research there. Dr. Weiss was named to the Cleveland Clinic medical staff in 2019.

Research, Publications and Speaking: Dr. Weiss has coauthored nearly three dozen articles in peer-reviewed medical and surgical journals, a cardiothoracic surgery handbook and chapters in a cardiothoracic surgery textbook. He has presented on the latest techniques in aortic aneurysm repair and topics in adult and pediatric heart surgery at national and international medical meetings. 
About Dr. Weiss: “I was six years old the first time I said I wanted to be a heart surgeon. I am fortunate now to wake up every day and do just that. I love heart surgery for many different reasons, but the most exciting is it provides me with the incredible honor of patients trusting me to make a difference in their lives. I value that deep trust and am extremely grateful for the opportunity to help play a part in each patient’s journey towards a healthier and better life.”

Leisure Activities: In his free time, Dr. Weiss enjoys traveling, photography and spending time with his family and two dogs. 

Education & Professional Highlights

Education & Professional Highlights


Education & Fellowships

Graduate School - Icahn School Of Medicine at Mount Sinai
Clinical Research
New York, NY United States

Graduate School - Icahn School of Medicine at Mount Sinai
Clinical research
New York, NY United States

Residency - Mount Sinai - Icahn School of Medicine
Integrated Thoracic Surgery
New York, NY

Medical Education - Mount Sinai - Icahn School of Medicine
New York, NY

Undergraduate - Washington University in St Louis
Saint Louis, MO


  • Thoracic & Cardiac Surgery - Thoracic and Cardiac Surgery

Specialty Interests

Adult cardiac surgery, complex cardiac surgery, reoperative cardiac surgery, heart transplant, ventricular assist devices, heart failure (CHF), extracorporeal membrane oxygenation (ECMO), heart valve repair and replacement, coronary artery bypass graft surgery (CABG), aortic surgery, endocarditis (infection of the heart and valve inner lining)

Awards & Honors

  • 2018 American Association for Thoracic Surgery Foundation Award, Cleveland Clinic
  • 2011 – 2012 Alpha Omega Alpha Honor Medical Society
  • 2011 Mrs. David A. Dreiling Surgery Prize in Memory of her Mother, Florence L. Oppenheimer, Icahn School of Medicine at Mount Sinai
  • 2011 Distinction in Research, Icahn School of Medicine at Mount Sinai
Research & Publications

Research & Publications

See publications for Aaron Weiss, MD, PhD.

(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 7/2/2024, Dr. Weiss 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.

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

53 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
4.8 out of 5
Explains 4.9
Listens 4.8
Courtesy, Respect & Concern 4.9
Patient Rating of Doctor 4.9

6 Patient Comments

Reviewed on Apr 12, 2024

I wish I could give Dr. Weiss more than a 5. He is unbelievable. As busy as I'm sure he is, he was very patient answering questions and covering points I never thought of. I told my wife afterwards: I want to go have a beer with that guy. Her response: Can I go witch you? I wish I could have sat there for another hour just to shoot the breeze.

Reviewed on Apr 4, 2024

Dr. Weiss is awesome! So kind, loving and knowledgeable. Dr. Rampersad is so smart. Annette, NP was exceptional also.

Reviewed on Mar 28, 2024

Cannot say enough about Dr. Aaron Weiss, his bedside manner & explanations.

Reviewed on Sep 15, 2023

I cannot say enough about Dr Weiss he is the model of what every medical professional should strive to be

Reviewed on Aug 26, 2023

*Dr. Weiss excellent. Kept myself and family informed.

Reviewed on Aug 10, 2023

Dr Weiss surprised me by actually offering to show me why he thought a surgery would be my best option

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