Siva Vithiananthan

Siva Vithiananthan, MD, FACS, FASMBS, FICS, joined CHA as chief of surgery in 2021. Prior to CHA, Dr. Vithiananthan led a clinical practice in minimally invasive and robotic approaches to gastrointestinal diseases, complex hernias and bariatric (weight loss and metabolic) surgery at Brown Physicians Inc. and Brown Surgical Associates in Providence, R.I., and was the chief of bariatric and minimally invasive surgery at The Miriam Hospital and medical director of the Center for Bariatric Surgery at The Miriam and Rhode Island Hospitals. Dr. Vithiananthan was also a professor of surgery, clinician educator at the Warren Alpert Medical School of Brown University and the site-director of the Brown Surgical Residency and Medical Student Programs at The Miriam Hospital. His main research focus is on social determinants of healthcare and the metabolic and physiological effects of weight loss surgery.

Having served in leadership capacities in many national and international surgical societies, Dr. Vithiananthan has been invited around the world to offer his expertise in training surgeons. He was nominated by the International College of Surgery to serve as the inaugural surgical ambassador in minimally invasive surgery to Nanjing Medical University in Nanjing, China. He has trained hundreds of surgeons in China, Sri Lanka, and Hungary in the techniques of minimally invasive surgery over the last decade.

Dr. Vithiananthan is board certified in general surgery and surgical critical care and fellowship trained in advanced laparoscopic surgery and surgical critical care. He received his medical degree from Columbia University College of Physicians and Surgeons in New York. He completed his residency at Baystate Medical Center in Springfield, Mass., and fellowships at New York Presbyterian Hospital and the University of Connecticut School of Medicine/Hartford Hospital.