Unni Krishnan Marar, MBBS
Physician, Assistant Professor
Cardiovascular Disease
Make an appointment
614-293-7677
Accepting new patients
Conditions and expertise
- High Blood Pressure
- Hypercholesterolemia
- Coronary Care Units
- Nuclear Medicine
- Echocardiography
- Cardiovascular Diseases
Locations
- Talbot Hall
- Heart and Vascular Care
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
in East Hospital
181 Taylor Ave.
Tower 12th Floor, Suite 1201
Columbus, OH 43203
Tower 12th Floor, Suite 1201
Columbus, OH 43203
614-293-7677
Please note: Not all physicians schedule patients at each listed location.
Credentials
Education
- Fellowship - Cardiovascular Disease
- Ohio State University Wexner Medical Center, Columbus, OH, United States
7/1/2004 - 6/30/2007 - Residency - Internal Medicine
- 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 -
Institution Not Present
7/1/2006 -
American Board of Internal Medicine
9/22/1993
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.
162 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, Dr. Marar has reported no relationships with companies or entities.
Great M.D.
He is always nice and caring
Excellent. Courteous, thorough and friendly.
Good
Dr. Marar was extremely kind and accommodating in helping me receive a next day heart cath! This allowed me to continue with a planed lobectomy the following day.
Nothing bad
Dr.Marar had reviewed my chart/case thoroughly and was very patient when explaining his thoughts with me.
Good
Warm professionalism. Truly concerned re my health
Listened to what I said and was very clear on what we should do
He is always kind and patient with me and I never feel rushed
He was great
There is not enough space to describe my excellent experiences with Dr.Marar!He has saved my life literally! He has been my Cardiologist for the last 12 years!He is brilliant,humble compassionate and very caring ! I don't think O.S.U. Wexner has given him the recognition he deserves.I will be happy to substantiate how his diagnosis and prompt decision making saved my life!
Goodgood
It was a good experience and I have confidence in him.
Dr Marar listens to what I have to say about my current health conditions and has ordered tests so we can hopefully figure out what is going on.
Seemed caring
Excellent treatment.
Satisfactory
Excellent/good
Very attentive towards the visit and my health
My experience with both the provider and his staff were great
Knowledge about my overall medical case as it related to medical provider
Dr Marar did not act rushed. Very thorough.
Good
Very good 10 v
Dr. Marar always takes time to talk with me, explain my condition, and go over my medications. I feel very comfortable with him and his care for my cardiac issues.
Dr. Marar is very knowledgeable and spends the time necessary to deal with all questions and concerns.
Great experience
Good
Knowledgeable about conditions Very thorough about treatment and medication
Helpful
Nothing short excellent
Dr Marar has been my cardiologist for several years. We have good ducussions about my medications.
I enjoyed my provider and he was easy to talk to. He answered the question I presented to him. He is a very caring person.
Excellent care, he is concerned about my health condition
Friendly understanding
Very good
Overall it was a good experience first time seeing a cardiologist he was very nice he has a lot of questions which was good about about my health
Good
Dr. Is an excellent cardiologist. I am very pleased with him
Professional and informative
He is a very good doctor and has concern for my health.
I consider myself lucky to have such a great provider and health team.
Very good
Explain things thoroughly
Very good v
We prompted the discussion on review of medications.
I always have a very positive and friendly experience.
Good good
My care provider took time to explain my test results. He was respectful and answered all my questions.
Very nice
He is a great cardiologist
Doctor was excellent.
Ok
Good
Nothing to complain about
Good
It's all good its
Good