Yanek S. Y. Chiu, MD, FACS, FASCRS

General & Colorectal Surgeon

Clinical Professor of Surgery, UCSF

Yanek S. Y. Chiu, MD is a general and colorectal surgeon and Clinical Professor of  Surgery at UCSF.  Dr. Chiu received his MD from Boston University School of Medicine and completed his general surgery residency training at  Boston University Medical Center. This was followed by a postgraduate fellowship in colon and rectal surgery at the Mayo Clinic in Rochester, Minnesota and a surgical fellowship in trauma at Boston City Hospital.

Dr. Chiu has has extensive experience and expertise in the screening and treatment of benign and malignant colorectal disease and a broad range of gastrointestinal conditions. As an academically-trained surgeon, Dr. Chiu is highly skilled in the use minimally invasive surgical techniques and in performing laparoscopic surgery.

Dr. Chiu is a fellow of the American College of Surgeons and American Society of Colon and Rectal Surgeons and a member of numerous other professional societies and organizations.  He is also the author of many peer-reviewed articles in the field. Dr. Chiu has served with distinction on numerous medical societies and associations both locally and nationally, as well as many non-profit organizations.

Board Certifications

  • American Board of Surgery
  • American Board of Colon and Rectal Surgery


  • Boston University School of Medicine, MD
  • Dartmouth College, Hanover, New Hampshire, BA


  • Boston University Medical Center, General Surgical Residency


  • Mayo Clinic, Rochester, MN, Postgraduate Fellow in Colon and Rectal Surgery
  • Boston City Hospital, Surgical Fellow in Trauma

Clinical Expertise

  • Anorectal Disease
  • Benign and Malignant Soft Tissue Tumors
  • Colon Cancer
  • Digestive Diseases
  • Endoscopy/Colonoscopy/Cancer Screening
  • Gall Bladder Disease
  • Hernia Surgery
  • Laparoscopic Surgery
  • Pelvic floor disorders and incontinence
  • Rectal Cancer
  • Surgical Oncology
  • Upper Gastrointestinal Surgery

Hospital Affiliations

  • California Pacific Medical Center
  • Chinese Hospital
  • Presidio Surgery Center
  • San Francisco Endoscopy Center
  • St. Mary’s Hospital

Professional Associations

  • American College of Surgeons
  • American Medical Association
  • American Society of Colon and Rectal Surgeons
  • California Medical Association
  • Northern California Chapter of the American College of Surgeons
  • Northern California Society of Colon and Rectal Surgeons
  • Northwest Society of Colon and Rectal Surgeons
  • Pacific Coast Surgical Association
  • Priestly Society of Mayo Clinic
  • San Francisco Surgical Society

Awards & Honors

  • Exchange Surgical Registrar in General Surgery, Cardiff, South Wales, United Kingdom
  • Purdue Fellowship in Colon & Rectal Surgery
  • Crohn's & Colitis Foundation of America
  • Bay Area Physician of the Year Award

Foreign Languages Spoken