Dr. Karanvir “Kanny” Grewal, MD, FACC
Seasoned cardiologist with OhioHealth Heart & Vascular (Columbus, OH). He joined OhioHealth in 1997 and serves as System Chief of Cardiac Imaging for OhioHealth and Medical Director of the Cardiac Imaging Laboratory at Riverside Methodist Hospital.
Maintains an active clinical practice in the Columbus area, specializing in non-invasive and preventive cardiology. Interests include sports cardiology, valvular heart disease, and prevention of cardiovascular disease.
Professional Background & Current Roles
Dr. Karanvir “Kanny” Grewal, MD, FACC, is a seasoned cardiologist with OhioHealth Heart & Vascular in Columbus, Ohio. He has been with OhioHealth since 1997 and currently serves in multiple leadership and clinical roles:
- System Chief of Cardiac Imaging for OhioHealth
- Medical Director of the Cardiac Imaging Laboratory at Riverside Methodist Hospital
- Maintains an active clinical practice across the Columbus region
- Specializes in non-invasive and preventive cardiology
- Expertise in sports cardiology, valvular heart disease, and prevention of cardiovascular disease
Dr. Grewal is recognized for his expertise in cardiac imaging and his commitment to patient-centered care. Through his leadership at OhioHealth, he continues to advance the quality, accessibility, and outcomes of cardiovascular services, while also guiding the next generation of physicians through teaching and mentorship.
Academic Journey & Certifications
Education
- 1987–1991: MD degree, University of Toronto
- 1991–1994: Residency in Internal Medicine, University of Western Ontario
- 1994–1997: Fellowship in Cardiology, University of Western Ontario
- 1997–1998: Advanced Fellowship in Non-Invasive Cardiac Imaging,
Massachusetts General Hospital (Harvard Medical School affiliate)
Certifications
- Cardiovascular Diseases: American Board of Internal Medicine (ABIM)
- Adult Echocardiography: National Board of Echocardiography
- Nuclear Cardiology: Certification Board of Nuclear Cardiology
- Cardiac CT: Society of Cardiovascular Computed Tomography
Leadership, Advocacy & Organizational Roles
Dr. Karanvir “Kanny” Grewal has held numerous leadership positions across clinical, civic, and professional organizations.
He has led local and state cardiology initiatives, supported community clinics, and testified on public health matters.
- Columbus Medical Association (CMA) — President (2024–2025 term). Active CMA board member and volunteer with the Physicians CareConnection free clinic.
- Ohio Chapter, American College of Cardiology (Ohio-ACC) — Elected Governor (2020, office 2021) and later served as President (2023). Served on the Board of Trustees and active in ACC leadership and advocacy.
- Professional Society Leadership — Board member roles (including Intersocietal Accreditation Commission activities for Nuclear Cardiology) and active participation in ACC career development and FIT-to-FACC initiatives.
- CMA Foundation — Treasurer / Secretary roles supporting the foundation’s community work and clinic operations.
- Advocacy — As Ohio-ACC President, provided testimony to the Ohio legislative committee on improving public access to AEDs and school cardiac safety.
Research & Academic Contributions
Dr. Grewal has authored and co-authored numerous peer-reviewed publications and abstracts in cardiovascular medicine,
with focus areas in non-invasive imaging, sports cardiology,valvular heart disease, and disease prevention.
His research has been cited in leading cardiology journals and presented at national conferences,
contributing to advancements in imaging protocols and preventive cardiology practices.
Media Appearances and Podcasts
Dr. Grewal actively participates in educational media, notably as host of the Ohio Chapter ACC’s
“CardiOhio Podcast”. In Season 2 and 3 of CardiOhio, he has moderated interviews
with experts on various clinical topics:
Season 2, Episode 18
“All About FMD and SCAD” (guest Dr. Heather Gornik): discussion of fibromuscular dysplasia
and spontaneous coronary artery dissection
ohioacc.org.
Season 2, Episode 17
“Acute Heart Failure: New Therapies and Devices” (guests Drs. Ankit Bhatia & Gregory Egnaczyk):
management of acute decompensated heart failure and LVADs
ohioacc.org.
Other Episodes
Co-hosted or featured on episodes about high-sensitivity troponin assays
ohioacc.org,
physician wellness and burnout
ohioacc.org,
atrial fibrillation in athletes, cardio-obstetrics, and more.
These podcasts (Ohio-ACC CardiOhio podcast) are publicly available and focus on practical clinical insights.
Dr. Grewal also appears in local health media. He has been featured in OhioHealth Newsroom segments
(e.g. a “Medical Minute” on cardiac arrest) and contributes health education articles on OhioHealth’s blog.
Public Outreach, Patient Education, and Service
Health Education
- He co-founded The Heart Health Doctors blog (thehearthealthdocs.com) with a colleague, writing layperson-friendly articles on nutrition and lifestyle for heart health.His OhioHealth and CMA blog posts (e.g. on alcohol use, diet, exercise) extend this patient-education mission:
Volunteer Service
For many years he has volunteered at Physicians CareConnection, a free clinic in Columbus serving uninsured patients, through his involvement with the
CMAblog.columbusmedicalassociation.org.
Advocacy
Beyond legislative testimony (see above
search-prod.lis.state.oh.us),
Dr. Grewal speaks at medical conferences and CME events on behalf of cardiology initiatives (e.g. FIT-to-FACC workshops).
Honors and Recognition
Fellow, American College of Cardiology (FACC), American Society of Echocardiography, and American Society of Nuclear Cardiology.
(Past academic honors include recognition as a Paul Dudley White Scholar by the American Heart Association, and selection as an SCAI Social Media Ambassador – noted in professional profiles, though specific citations are proprietary.)
Online Presence
Dr. Grewal maintains a professional online profile to reach both colleagues and the public:
- Website/Blog: HeartHealthDocs.com – a heart-healthy lifestyle blog he co-founded
blog.ohiohealth.com, doximity.com. - Social Media: Active on Twitter (X) via the handle
@HeartHealthDrs,where he shares health tips and ACC advocacy updates. (A related handle, @DrGheartMD, has also been associated with his activity.) - Professional Profiles: Listed on OhioHealth and ACC websites (HeartHealth physicians directory) and Doximity. For example, his OhioHealth profile highlights his imaging role and specialties blog.ohiohealth.com.
He engages with medical audiences on platforms like LinkedIn and professional forums through the Columbus Medical Association and ACC.
Each of the above points is documented by professional sources. Dr. Grewal’s ongoing roles at OhioHealth, ACC leadership, and public education efforts are cited from OhioHealth, ACC, and CMA publications.
Sources:
Official OhioHealth and CMA biographies, Ohio-ACC announcements, legislative testimony, and peer-reviewed publication records:
ohiohealth.cloud-cme.com,
columbusmedicalassociation.org,
pubmed.ncbi.nlm.nih.gov.