NCSCG Board
Mikhail Alper, PA-C
Board Member
California Gastroenterology Associates
Fresno/Madera, CA
For more than 25 years, Mikhail Alper has served the Central Valley community as a Physician Associate at California Gastroenterology Associates, where he provides comprehensive care in gastroenterology and hepatology with a strong commitment to underserved populations.
Marina Roytman, MD, FACP
Board Member
UCSF Fresno
Fresno, CA
Marina Roytman, MD received her medical degree at the Oregon Health Sciences University, Portland, Oregon followed by Internal Medicine residency at Mount Sinai Hospital in New York and Medical Education fellowship at John A. Burns School of Medicine in Hawaii.
Robert Wong, MD, MS
Board Member
Stanford University
Palo Alto, CA
Dr. Wong is a Clinical Associate Professor of Medicine (Affiliated) in the Division of Gastroenterology and Hepatology, Stanford University School of Medicine, and staff physician in the Gastroenterology and Hepatology Section at Veterans Affairs Palo Alto Healthcare System.
Neil Stollman, MD
Board Member
East Bay Center for Digestive Health
Oakland, CA
Neil is a partner in East Bay Center for Digestive Health, after previously working at the Miami VA, Jackson Memorial Hospital and most recently, San Francisco General at UCSF. His clinical expertise is C difficile infections and FMT, as well as Diverticular Disease, for which he's contributed to national Practice Guidelines.
Mike Tzuhen Wei, MD
Board Member
Stanford University
Palo Alto, CA
Mike Tzuhen Wei, MD was born and raised in Taipei, Taiwan. He went to Stanford for his undergraduate studies in Biology and earned his medical degree at Weill Cornell Medical College. He currently works at Stanford and has specific interests in colorectal cancer and Barrett's esophagus surveillance.












