Dr. Mark Kogan received his undergraduate and MD degrees from Northwestern University. As a member of the prestigious Honors Program in Medical Education, he earned both degrees in a total of 6 years. After completing his Internal Medicine residency at Cornell University, he went on to complete his Gastroenterology and Hepatology fellowship at the University of Colorado Health Sciences Center in Denver, Colorado.

Dr. Kogan has been practicing in the Bay Area since 1987 and has been exhaustively involved in the medical community in numerous leadership roles. He has served as Chief of Staff at Doctors Medical Center and as President of the Alameda Contra Costa Medical Association, and as Chief of Gastroenterology at Alta Bates Summit Medical Center. Additionally, he has served as a Regional Medical Director for the Alta Bates Medical Group as well as sat on the clinical practice committee for the American Gastroenterology Association. Currently, he is a member of the California delegation to the American Medical Association and serves on the Board of Trustees of the California Medical Association. He also has had teaching appointments at UCSF School of Medicine as Assistant Clinical Professor and an Adjunct Associate Professor at Touro Osteopathic Medical School. He has been named one of the top Gastroenterologists in the Bay Area by San Francisco Magazine for 2016, 2017, and 2018.

A native of Chicago, Dr. Kogan enjoys spending time with his family. He also enjoys the natural beauty of the Bay Area and spends his free time hiking, skiing, and golfing.

Treatment Philosophy
Dr. Kogan believes in providing the highest quality medical care while respecting the dignity of all patients. His goal is to expertly manage the digestive health of his patients, as well as to provide education and address any concerns. Dr. Kogan enjoys all aspects of consultative and therapeutic gastroenterology. Colon cancer screening and inflammatory bowel disease are areas of special interest to him. Becker’s GI & Endoscopy has named Dr. Kogan as “GI physician leader to know!”
Specialties and Services
  • Colon Cancer Screening
  • Gastrointestinal Endoscopy (Colonoscopy, Upper Endoscopy, Capsule Endoscopy, ERCP)
  • Fibroscan
  • Research
  • Peg placement, replacement and removal
  • General Hepatology
  • Non-Surgical treatment of Hemorrhoids
  • Online Video Visits
Online Video Visits
Dr. Mark Kogan is able to offer online tele-health services for patients who want to see or speak to the provider from the comfort of their home. Please contact our office at 510.234.5012 to schedule an appointment.
  • English
Education & Training
  • Fellowship: University of Colorado Health Sciences Center
  • Residency: Cornell University
  • MD: Northwestern University
Professional Affiliations
  • American College of Physicians
  • American Society for Gastrointestinal Endoscopy
  • California Medical Association
  • American Gastroenterological Association
  • Alameda Contra-Costa Medical Association
  • Northern California Society for Clinical Gastroenterology
  • American Medical Association
San Pablo Office
2089 Vale Rd., Suite 33
San Pablo, CA 94806
Phone: (510) 234-5012
Fax: (844) 407-0578

Berkeley Office
2999 Regent Street, Suite 701
Berkeley, CA 94705
Phone: (510) 234-5012
Fax: (844) 407-0578