Best Heart Specialist Hospital in Chennai (2026): Top 10 Hospitals, Doctors & How to Choose Written by P. Deepika, Content Writer, Healthcare Industry. Medically reviewed by: Dr. K. Thiyagarajan, MBBS, MD (General Medicine), DM (Cardiology) · Tamil Nadu Last medically reviewed: 22 Cardiology Clinic September 22, 2026November 4, 2026 Dr. K. Thiyagarajan