HealthCareAtlasUSA

This site republishes official CMS/Medicare Care Compare data. It is not medical advice and does not recommend any specific hospital or treatment — for medical decisions, talk to a doctor.

Doctors / CA

BILLY C ZHANG, MD

INTERNAL MEDICINE

Graduated: 2017

Offers telehealth

NPI: 1871087957

Practice Locations (5)

PROVIDENCE MEDICAL FOUNDATION

100 E VALENCIA MESA DR, SUITE 105

FULLERTON, CA 928353816

7148713006

PROVIDENCE MEDICAL FOUNDATION

1950 SUNNY CREST DR, SUITE 2900

FULLERTON, CA 928353641

7149925350

PROVIDENCE MEDICAL FOUNDATION

12942 HARBOR BLVD

GARDEN GROVE, CA 928405809

7147052120

PROVIDENCE MEDICAL FOUNDATION

134000 JAMBOREE RD

IRVINE, CA 926022308

7142639279

PROVIDENCE MEDICAL FOUNDATION

2212 E 4TH ST

SANTA ANA, CA 927053870

7146331011

Source: CMS National Downloadable File, September 2026.

BILLY ZHANG, MD | HealthCareAtlasUSA