Meet Our Physicians


Henry A. Fisher, M.D

Dr. Fisher is Board Certified in Gastroenterology and Internal Medicine. He serves as the Chief of Gastroenterology at Saint Joseph Medical Center since 2007.

Benedict Garrett, M.D.

Dr. Benedict Garrett, board certified in internal medicine and gastroenterology, received his medical degree from the UCLA School of Medicine. His residency and fellowship were completed at UCLA.


Richard Kuritzkes, M.D.

Dr. Richard A. Kuritzkes received his undergraduate degree from Yale University and his medical degree from New York University School of Medicine. Both his residency and fellowship were completed at UCLA Medical Center in Southern California


Stephen Levinson, M.D.

Dr. Stephen G. Levinson is board certified in Internal Medicine and Gastroenterology. He received his medical degree from Northwestern University Medical School in 1978.

David Schulman, M.D.

Dr. David S. Schulman made the move to Los Angeles after enduring 29 harsh East Coast winters and studying at The Johns Hopkins University and The Albert Einstein College of Medicine. Following his internal medicine residency at The George Washington University Medical Center, he completed his fellowship training in gastroenterology at the University of California, Irvine.

John Kasher, MD, FACP, FACG

Dr. John Kasher completed his undergraduate training at UCLA where he graduated with Cum Laude honors. He moved to Boston and received his MD degree from Boston University School of Medicine. Dr. Kasher then continued his training at the UCLA-Olive View Internal Medicine Residency program where he completed internship and residency training and became Board Certified in Internal Medicine. He subsequently attended the University of Arizona for fellowship and received further subspecialty education in areas of gastroenterology, hepatology, and endoscopy – including training in advanced endoscopic procedures such as EUS and ERCP.


David Alexanian

Dr. Alexanian excels in the treatment of a variety of gastrointestinal disorders and in addition his particular professional interests also include cancer screening, reflux, liver disease, inflammatory, and bowel disease.


Kristina Neagos, MSN, FNP-C

Kristina Neagos is board-certified by the American Board of Nurse Practitioners and has more than 10 years experience in gastroenterology and liver disease.