Northside Hospital Cardiovascular Institute provides heart care that is personal, professional, compassionate and comprehensive. Our team of top board-certified cardiologists are renowned and recognized for ground-breaking research, cardiac expertise, industry leadership and compassionate patient visits.


Located in Braselton, Canton, Crabapple, Cumming, Dahlonega, Dawsonville, Duluth, Gainesville, Lawrenceville, Midtown Atlanta, Sandy Springs-Barfield, and Sandy Springs-Hammond.

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Niraj Sharma, MD, FACC, FHRS


Niraj Sharma, MD, FACC, FHRS

tops doc badge 2021Dr. Niraj Sharma takes the first step in providing cardiovascular care by sitting down with his patients. He listens to his patients’ concerns and enjoys making a difference in their lives. Dr. Sharma is board certified in both cardiovascular disease and cardiac electrophysiology. In addition to implanting pacemakers and defibrillators (ICDs), his interests include complex ablations and being involved in new innovations and research. Dr. Sharma educates patients about heart rhythm problems like atrial fibrillation (AFib) and how to avoid major concerns like sudden cardiac death.

Dr. Sharma is deeply experienced in the entire cardiovascular system and specializes in ablations for atrial fibrillation and ventricular tachycardia, left atrial appendage (LAA) closure implants, and other minimally invasive stroke prevention procedures.

When he’s not working, Dr. Sharma spends time riding his Triumph motorcycle.

Awards & Honors
Castle Connolly Top Doctor, 2013-present; America’s Most Honored Professional, 2016-2020; Larry King Foundation Humanitarian Award, 2009
Training & Affiliations

Medical School, Government Medical College, Jabalpur, India

Residency, Internal Medicine, Yale University, New Haven Connecticut

Residency, Internal Medicine, Brown University, Providence, Rhode Island

Director Medical Consult Services, Brown University, Roger Williams Medical Center, Providence, Rhode Island

Fellowship, Cardiology, UT Southwestern Medical Center, Parkland Hospital, Dallas, Texas

Board Certified, Cardiovascular Disease and Cardiac Electrophysiology

Fellow, American College of Cardiology

Fellow, Heart Rhythm Society


Meet the other expert electrophysiologist with Northside Hospital Cardiovascular Institute.
Alok Gambhir, MD, PhD, FACC, FHRS
Chief of Cardiac Electrophysiology, Northside Health System