Ram Kumar Subramanyan

Assistant Professor of Surgery

Areas of treatment:

Complex congenital cardiac disorders
Transposition ventricle physiology
Single ventricle physiology


  • Cardiothoracic Surgery


  • Department of Surgery


  • English

Ram Kumar Subramanyan, MD, PhD

Assistant Professor of Surgery

Practicing locations:

  • Children's Hospital Los Angeles
  • Keck Hospital of USC
  • USC Healthcare Center 2

About this doctor:

Dr. Subramanyan obtained his medical degree in 1998 at Madras Medical College in India. He subsequently entered USC and established an excellent educational track record, obtaining a Ph.D. in Pathobiology, while successfully completing both a general surgery residency program and a cardiothoracic surgery fellowship. In addition, he completed a congenital heart fellowship in June 2012 and was appointed as Assistant Professor of Surgery in the Department of Surgery the following month.

Dr. Subramanyan is recognized by our faculty as one of the most intelligent and accomplished young surgeons they have ever had the privilege of training. His dedication to patient care, professional demeanor and outstanding surgical skills quickly placed him in the top tier of cardiothoracic surgeons.

Dr. Subramanyan is also a surgeon-scientist who runs a basic science research lab studying molecular signaling by endothelial and endocardial membrane proteins. His research focuses on the mechanisms governing the development of heart and blood vessels in humans and animal models. Such information is applied in the translational realm of pro-angiogenic stimuli to improve end-organ perfusion and tissue recovery from ischemia, and anti-angiogenic mechanisms to favorably impact vascular proliferative disorders, including cancer. Dr. Subramanyan has over 30 peer-reviewed publications, co-authored two books, several textbook chapters and over 20 presentations in a variety of conferences.


MD, Madras Medical College, 1998
PhD, University of Southern California, Pathobiology, 2006


LAC+USC Medical Center General Surgery, 2002-2008
LAC+USC Medical Center Thoracic Surgery, 2008-2011


Children's Hospital Los Angeles Congenital Cardiothoracic, 2011-2012
LAC+USC Medical Center Preliminary Surgery, 2000-2001


American Board of Surgery General Surgery, 2009
American Board of Thoracic Surgery Cardiothoracic Surgery, 2012

Professional society memberships:

Society of Thoracic Surgeons, 2011-current
American Heart Association, 2012- current
Association of Academic Surgeons, 2012-current
American College of Surgeons, 2006-current
American Physiological Society, 2001-current


Best teacher award, University of Southern California, 2009
Dissertation Research Grant from Tobacco-Related Disease Research Program, 2005
Outstanding scholar and Best teacher award, Department of Surgery, USC, 2008
Medal winner for best student in eight departments in Medical School – Surgery, Clinical Surgery and Clinical Medicine, Internal medicine, Therapeutic medicine, Cardiology, Microbiology, Physiology, and Biochemistry.
Valedictorian of class of 1998, Madras Medical College.
National Talent Search of India scholarship, awarded to top students across the nation.
Best outgoing student of DAV Higher Secondary School, 1992 and privileged member of the DAV Hall of fame.
Voted Best student of the city by Rotary International, 1992