Highlights
Age Groups Seen
- Adult
Languages
- Croatian
- English
Gender
MaleAbout Marijan Koprivanac
Biography
Marijan Koprivanac, MD, is a staff surgeon in the Department of Thoracic and Cardiovascular Surgery of the Sydell and Arnold Miller Family Heart, Vascular & Thoracic Institute. He is at Cleveland Clinic Main Campus.
Specialty Interests: Adult cardiac surgery; aortic valve and bicuspid valve repair; surgery for thoracic aortic aneurysm and dissection, including endovascular approach; complex aorta surgery and cardiac reoperations; David's reimplantation procedure; cardiac surgery for Marfan’s and other connective tissue disorders; minimally invasive heart surgery; cardiac tumors; endocarditis
Experience: Cleveland Clinic cardiac surgeons perform a total of more than 4,500 heart surgeries annually, with each surgeon completing 300 to 400 cases. During his training, Dr. Koprivanac performed more than 1,000 cardiothoracic surgeries, including heart valve surgery, reoperations and complex aorta operations.
Success Rates: Cleveland Clinic is nationally and internationally renowned for its cardiovascular care. To learn about patient outcomes for specific conditions and procedures at Cleveland Clinic, go to http://my.clevelandclinic.org/heart/about-heart-vascular-institute/treatment-outcomes.aspx.
Education: Dr. Koprivanac holds a doctorate in medicine from the University of Zagreb School of Medicine, Zagreb, Croatia, and a master’s in clinical research from Case Western Reserve University. He was a research fellow in the Cleveland Clinic Department of Thoracic and Cardiovascular Surgery while earning his master’s and entered a six-year surgical residency at Cleveland Clinic on completion of his degree. Following his residency, Dr. Koprivanac completed his training with a two-year cardiothoracic surgery fellowship at the University of Pennsylvania, Philadelphia.
He returned to Cleveland Clinic as an aortic clinical associate in the Department of Thoracic and Cardiovascular Surgery in 2021 and was named a full member of the surgical staff in 2022.
About Dr. Koprivanac: “There is no greater feeling than being able to help patients and improve their quality of life. In cardiac surgery, this requires high technical expertise and a wide skill set to be able to choose the best treatment option and achieve the best possible outcome. I am grateful to have learned these skills from one of the best heart surgeons in the world. I am privileged that my work is facilitated by an amazing team of individuals caring for our patients from diagnosis to discharge and beyond.”
Leisure Activities: In his leisure time Dr. Koprivanac enjoys nature and outdoor activities, including hiking, sailing and fishing, as well as basketball, tennis, movies and spending time with his family.
Education & Board Certifications
Education
- Fellowship: University of Pennsylvania, 2021
- Residency: Cleveland Clinic, 2019
- Graduate School: Case Western Reserve University School of Medicine, 2013
- Internship: University of Zagreb, School of Medicine, 2011
- Medical Education: University of Zagreb, School of Medicine, 2009
Board Certifications
- Cardiac Surgery: American Board of Thoracic Surgery, 2022
Professional Highlights
Dr. Koprivanac has presented at national and international medical meetings, including the Society for Thoracic Surgery, American Heart Association, American College of Cardiology and International Society for Heart and Lung Transplantation. He has coauthored scientific papers published in leading surgical journals, authored chapters in surgical textbooks and is a manuscript reviewer for The Annals of Thoracic Surgery.
Awards
- 2021 Michael A. Acker Teaching Award, University of Pennsylvania
- 2019 Excellence in Teaching Award, Cleveland Clinic
- 2018 Best Oral Presentation, Cleveland Clinic Cardiothoracic Surgery Research Day
- 2008 Rector's Award for best student research/article, University of Zagreb
Research & Publications
See publications for this provider. (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
Cleveland Clinic physicians and scientists collaborate with industry to advance medical breakthroughs. These partnerships help commercialize discoveries for public benefit while maintaining scientific integrity. To ensure transparency and minimize potential bias, Cleveland Clinic reviews these relationships and publicly discloses when physicians/scientists receive significant compensation for consulting, serve in fiduciary roles, receive royalties, or hold equity interests related to their work. We manage potential conflicts through approval processes, annual reporting, and targeted management plans.
As of 2025-09-24, Dr. Koprivanac has reported no financial relationship with industry that is applicable to this listing.
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.
Insurances Accepted
Video
Ratings & Reviews
4.8 out of 5
153 ratings, 8 reviewsThe Patient Satisfaction Rating is an average of all responses to the care provider related questions shown below from our survey. Patients that are treated in outpatient or hospital environments may receive different surveys, and the volume of responses will vary by question.
- 5 out of 5 starsReviewed on 4/6/2026
Dr answered all my questions before I asked them
- 5 out of 5 starsReviewed on 3/9/2026
Good visit all round. All courteous. All Drs. Informative and supportive. I have been told by 4 other Doctors here in SE Michigan I was fortunate to survive the proceedures I needed to stay functionally alive. Also, Prayers of Thanks and good spirits to all staff in the Cardiac, Thorasic, and Vascular specialty areas of the Hospital.
- 5 out of 5 starsReviewed on 11/20/2025
The doctor was great and was patient with our questions. He described the procedures and options clearly.
- 5 out of 5 starsReviewed on 10/23/2025
Dr. Koprivanac is a very caring doctor.
- 5 out of 5 starsReviewed on 8/27/2025
Dr Koprivanac is a caring person knowledgeable and professional Glad I chose him for my surgery.
- 5 out of 5 starsReviewed on 7/22/2025
Dr. Koprivanac did everything he said he would. We are very grateful.
- 5 out of 5 starsReviewed on 5/29/2025
Dr. K saved my life!!!!!
- 5 out of 5 starsReviewed on 5/19/2025
Dr K was very thorough and informative. He answered my questions and used visuals to assist in my understanding