U Krishnan Marar

U Krishnan Marar, MBBS

  • Cardiovascular Disease
  • Physician What's this? A physician, or doctor, is extensively trained to diagnose and treat complex medical problems. Often, physicians focus their practice on certain disease categories, treatment methods or patient types. Physicians can diagnose and treat illness, prescribe medication, offer medical consultation and advice, perform surgery and more.

Appointments: (614) 293-7677

About Me

Unni Krishnan Marar, MD, is an assistant professor of clinical medicine at The Ohio State University Wexner Medical Center.

Dr. Marar earned his medical degree in internal medicine and cardiology at The University of Mumbai in Mumbai, India. He completed his residency in internal medicine at The Ohio State University College of Medicine and his residency in internal medicine and geriatrics at Kettering General Hospital in Northamptonshire, United Kingdom. Dr. Marar also completed fellowships in cardiology at the University of Mumbai and at Ohio State’s College of Medicine.

Dr. Marar is 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. He is fluent in Hindi and English, and his focus is on clinical cardiology.

Additional Languages I Speak

  • Hindi

Procedures and Conditions I Treat

  • Internal Medicine
  • Cardiology
  • Cardiovascular Diseases
  • Echocardiography
  • Nuclear Medicine
  • Coronary Care Units
  • Hypercholesterolemia
  • Hypertension

Locations Where I Practice

Please note: Not all physicians schedule patients at each listed location. Please call the “Schedule an appointment” number shown above for scheduling assistance.

Education and Training


Internal Medicine
Ohio State University Wexner Medical Center
1/1/1991 - 4/20/1993

Internal Medicine
Kettering General Hospital
7/1/1988 - 11/30/1990

Internal Medicine
LTM Medical College and Hospitals
4/1/1979 - 2/28/1982


Interventional Cardiology
Ohio State University Wexner Medical Center
7/1/2004 - 6/30/2007

Cardiovascular Medicine
LTM Medical College and Hospitals
3/1/1982 - 3/31/1985

More About My Work

My Background

Board Certifications

American Board of Internal Medicine

American Board of Internal Medicine (Subspecialty: Cardiovascular)

My Department

Internal Medicine

My Division

Cardiovascular Medicine


190 Patient Satisfaction 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.

  • Overall
    4.7 out of 5
  • Explains Things Clearly 4.7
  • Listens Carefully 4.8
  • Gives Understandable Instructions 4.7
  • Knows My Medical History 4.6
  • Shows Respect 4.8
  • Time Spent Together 4.7

22 Patient Comments

Reviewed on Nov 11, 2018

concerned, informed about my history, made plans to improve my condition

Reviewed on Nov 11, 2018

My physician was very nice, caring and explained everything to me.

Reviewed on Nov 10, 2018

concern for my welfare

Reviewed on Nov 07, 2018

This dr. saved my life and helped get me out of a nursing home stay of 9 yrs. Praise God for Dr. Marar.

Reviewed on Sep 28, 2018

Very good!

Reviewed on Aug 24, 2018


Reviewed on Jul 26, 2018

Knowledgeable in his or her field.

Reviewed on Jul 24, 2018

He is very different from my other doctors. He seems to really want to find out what is truly causing my problems.

Reviewed on Jul 12, 2018


Reviewed on Jun 28, 2018

He's one of the best.

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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 12/20/2018, Dr. Marar has reported no relationships with companies or entities.

Schedule Online