About Us
Adel Abi-Hanna, M.D.
Dr. Abi-Hanna is a board-certified pediatrician and completed his general pediatric residency at State University of New York-Upstate in Syracuse. He continued at Johns Hopkins University in Baltimore, Maryland where he excelled in his fellowship in Pediatric Gastroenterology. Dr Abi-Hanna has a medical degree from the Lebanese University. Dr. Abi-Hanna joined the Pediatric Gastroenterology Associates group in 1999, joining Stanford Children's Health in 2016.
Mohammad Jami, M.D.
Dr. Jami loves having children as his patients because they are so resilient and joyful. They get well really quickly after being ill, and it's always a wonderful thing to see. 

He likes to work with parents as partners and makes sure they always have an open dialogue so they can trust each other and solve the problem sooner. Dr. Jami always listen closely to parents' concerns. As a parent of two children, he can really understand the parents' perspective. Open and honest communication allows us to create the best care plan for the whole family.
Ning Wan, R.D.
Ning is a Registered Dietitian specializing in pediatric nutrition. She earned a Master's Degree in human nutrition from Tufts University in Boston, MA. After moving back to the San Francisco Bay Area, she worked at Stanford Children's Hospital for 7 years. Ning has conducted nutrition and cooking workshops at local public schools as part of the KidsEatRight Campaign and a nation-wide, multi-center research project. Currently, Ning also works in the Pediatric Gastroenterology Clinic at Kaiser Permanente Santa Clara. 
Ning is a mother of three children, a violinist, and a certified Music Together teacher. In her spare time, she enjoys singing and playing musical instruments with her 3 children. Ning also enjoys cooking and camping with her family.
Viki Escobar, Practice Manager
Viki has been an office manager in private specialty practice for 20 years. Beginning her career as a receptionist, Viki realized the importance of exceeding patient expectations in order to provide the highest quality of customer service. Viki is proud of her staff at Pediatric GI and fosters their professional growth.

Viki is married with four children and two grandchildren. An avid SF Giants fan, her family can often be seen sliding down the CocaCola bottle at ATT Park. 
In her spare time, Viki enjoys reading, music, camping, and attempting to keep up with her school-aged kids.