Daniel Chiu, NP
Daniel Chiu is a Board Certified Nurse Practitioner who graduated from Azusa Pacific University with his Master of Science in Nursing with an emphasis in adult gerontology.
John Zeroogian, MD
Dr. John Zeroogian graduated summa cum laude from Springfield College and went on to obtain his medical degree at the University of Pittsburgh, where he graduated first in his class.
Julie Yang, MD
Dr. Julie Yang received her undergraduate degree in Biological Sciences at Cornell University in Ithaca, New York. She is a graduate of Rush Medical School in Chicago, Illinois.
Sassan Soltani, MD
Dr. Sassan Soltani earned his Bachelor of Science at Seattle University. Subsequently, he graduated from Saint Louis University Medical School where he was elected to the Medical Honor Society. He went on to complete his Internal Medicine residency at Harbor UCLA Medical Center and his Gastroenterology fellowship at UCLA.
Daisy Shabnam Lankarani, MD
Dr. Lankarani is very passionate about the treatment of gastrointestinal disorders and strives to provide compassionate care to all of her patients.
Peter M. Rosenberg, MD
Dr. Peter M. Rosenberg attended Harvard College and Harvard Medical School, after which he completed his Internal Medicine residency and Gastroenterology/Hepatology fellowship at Massachusetts General Hospital.
Richard E. Nickowitz, MD
Dr. Richard E. Nickowitz graduated from Yale University in 1983. He went on to study at Cornell University Medical College in New York City, graduating in 1987. His Internal Medicine residency was completed at The New York Hospital/Cornell Medical Center. Subsequently, he completed his combined fellowship in Gastroenterology and Hepatology at Mount Sinai Hospital, also in New York City.
Haig Najarian, MD
Dr. Haig Najarian is a practicing Gastroenterologist in Orange and Irvine, CA. He treats patients with gastrointestinal and liver disease and performs a wide spectrum of endoscopic procedures.
Michael Madievsky, MD
Dr. Michael Madievsky performs consultative, diagnostic, and therapeutic work at InSite Digestive in Tarzana. He completed his residency in Internal Medicine at the University of Cincinnati, Alliance Jewish Hospital.
Glenn Littenberg, MD
Dr. Glenn Littenberg founded his practice in 1978. He graduated from Reed College and from the University of Southern California School of Medicine in 1973. Dr. Littenberg subsequently completed 5 years of postgraduate residency and specialty training at both USC and UCLA.
James J. Lee, MD
Dr. James J. Lee has a private practice located in Orange, California and is a clinical assistant professor at the University of California, Irvine.
Nancy Ho, MD
Dr. Nancy Ho has been practicing gastroenterology since 2012. She was born and raised in the Chicagoland area, and after completing medical school and residency at Northwestern University in Chicago, she went on to complete her fellowship at the University of Maryland/National Institutes of Health – Health Scholars Program in 2015.