- About this provider
Unni Krishnan Marar, MBBS
Physician, Assistant Professor
Cardiovascular Disease
Make an appointment
614-293-7677Conditions and expertise
- High Blood Pressure
- Hypercholesterolemia
- Coronary Care Units
- Nuclear Medicine
- Echocardiography
- Cardiovascular Diseases
Locations
- Heart and Vascular Care in East Hospital
Academics and research
Department: Internal Medicine
About
- Gender
- Male
- Additional languages
- Hindi
Biography
I am an assistant professor of clinical medicine at The Ohio State University Wexner Medical Center.
I earned my medical degree in internal medicine and cardiology at The University of Mumbai in Mumbai, India. I completed my residency in internal medicine at The Ohio State University College of Medicine and my residency in internal medicine and geriatrics at Kettering General Hospital in Northamptonshire, United Kingdom. I also completed fellowships in cardiology at the University of Mumbai and at Ohio State’s College of Medicine.
I am fluent in Hindi and English, and my focus is on clinical cardiology.
Conditions and expertise
- Cardiology
- Cardiovascular Diseases
- Coronary Care Units
- Echocardiography
- High Blood Pressure
- Hypercholesterolemia
- Internal Medicine
- Nuclear Medicine
Locations
Heart and Vascular Care
Tower 12th Floor, Suite 1201
Columbus, OH 43203
Please note: Not all physicians schedule patients at each listed location.
Credentials
Education
- Fellowship - Cardiovascular Disease
- The Ohio State University Wexner Medical Center, Columbus, OH, United States
7/1/2004 - 6/30/2007 - Residency - Internal Medicine
- The Ohio State University Wexner Medical Center, Columbus, OH, United States
1/1/1991 - 4/20/1993 - Residency - Internal Medicine
- Kettering Memorial Hospital and Medical Center, Dayton, OH
7/1/1988 - 11/30/1990 - Fellowship - Cardiovascular Disease
- Lokmanya Tilak Municipal Medical College/Hospital, Sion, Mumbai 400 022, India, India
3/1/1982 - 3/31/1985 - Residency - Internal Medicine
- Lokmanya Tilak Municipal Medical College/Hospital, Sion, Mumbai 400 022, India, India
4/1/1979 - 2/28/1982 - Internship - Internal Medicine
- Lokmanya Tilak Municipal Medical College/Hospital, Sion, Mumbai 400 022, India, India
3/7/1978 - 3/6/1979 - Doctor of Medicine (MD)
- University of Bombay, Lokmanya Tilak, Bombay 400022, India
6/1/1973 - 10/1/1977
Certifications
-
American Heart Association National Center
12/1/2024 -
American Board of Internal Medicine/Cardiovascular Disease
10/31/2007
Academics and research
I am a member of several professional societies, including the Royal College of Physicians in London, England and the American Heart Association–Basic Life Support Program and Advanced Cardiovascular Life Support Program.
Research interests
- Cardiology

Academic information
- Department:
- Internal Medicine
- Division:
- Cardiovascular Medicine
More about my research
Ratings and reviews
The overall patient satisfaction rating is an average of all patient responses to the six doctor communication related questions shown below from the Clinician and Group Consumer Assessment of Healthcare Providers and Systems survey. For additional information about the patient satisfaction survey, please visit our Patient Satisfaction Survey page.
The comments are submitted by patients and reflect their view and opinions. The comments are not endorsed by and do not necessarily reflect the views of Ohio State Wexner Medical Center.
83 Patient Satisfaction Reviews
Patient Comments
Consulting and related relationships
At The Ohio State University Wexner Medical Center, we support a faculty member’s research and consulting in collaboration with medical device, research and/or drug companies because a faculty member’s expertise can guide important advancements in the practice of medicine and improve patient care. In order to provide effective management of these relationships, the University requires annual disclosures from all faculty members with external interests related to their University responsibilities.
As of 11/3/2025, Unni Krishnan Marar has reported no relationships with companies or entities.

I like Dr. Marar because he comes into the room with my history and understands the challenges of keeping on top of heart care.
Good. Nice. Knowledgeable. Good communicator.
My care provider gave me the attention that I desired.
Good
Excellent. Always listening to my concerns
Very good
Very interested in my well-being he gave me instructions for Care
My care provider did a great job too .
Very good care of me
Very Good
Friendly. Professional. Gave me new important medical information about my disability which no one else had over the years.
All good, very concerned with my health issues, ALWAYS follows up after tests and appointments. The best!
It was all good
Good
Everything went well
Good
Good
All good
Great M.D.
He is always nice and caring