Ranjit John, MD

Division of Cardiothoracic Surgery, Department of Surgery

Ranjit John

Contact Info


Office Phone 612-626-3664

Fax 612-625-1683

Mailing Address:
Cardiothoracic Surgery
420 Delaware Street SE
MMC 207
Minneapolis, MN 55455

Administrative Assistant Name
Rick Castillo

Administrative Phone

Administrative Email

Division of Cardiothoracic Surgery
, Department of Surgery

Site Director for Adult Heart Failure Surgery Fellowship Rotation

Surgical Director of Ventricular Assist Program

Cardiovascular Surgeon; Thoracic Surgeon

MD: Christian Medical College, Vellore, India

Residency: New York Medical College, Bronx

Fellowship: New York-Presbyterian Hospital, Columbia University



  • Heart Transplant
  • Cardiovascular Surgery
  • TAVR

Awards & Recognition

  • W. Gerald Austen Investigator Award, Society of Thoracic Surgeons, 2008
  • U.S. News & World Report 2012 Top Doctor
  • Minnesota Monthly "Best Doctors" (2014)

Professional Associations

  • International Society of Heart and Lung Transplantation 
  • American Society of Artificial Internal Organs 
  • American Heart Association 
  • Society of Thoracic Surgeons 
  • American Association of Thoracic Surgery 
  • Lillehei Surgical Society
  • Editorial Boards
    • Journal of Cardiovascular Translational Research
    • Journal of Heart Valve Disease 
    • Journal of Thoracic Disease


Research Summary/Interests

  • Clinical Outcomes after Ventricular Assist Device Implantation
  • Ventricular Recovery
  • Endothelial Function in Patients with Ventricular Assist Devices
  • Newer Generation Ventricular Assist Devices



  • Valvular heart disease
  • Ventricular assist devices
  • Heart transplantation
  • Heart failure surgery

Board Certifications

  • American Board of Surgery
  • American Board of Thoracic Surgery

Clinical Interests

Heart transplantation; Ventricular assist devices; High-risk heart failure surgery; Transcatheter Aortic Valve Replacement (TAVR); Cardiovascular surgery