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

JONATHAN D OU, MD

INTERNAL MEDICINE

Graduated: 2009

Also: PEDIATRIC MEDICINE

Offers telehealth

NPI: 1518109719

Practice Locations (4)

5562 PHILADELPHIA ST, SUITE 311

CHINO, CA 917102499

9094656342

PROVIDENCE MEDICAL FOUNDATION

253 S DIAMOND BAR BLVD

DIAMOND BAR, CA 917651606

9098601144

2707 S DIAMOND BAR BLVD, SUITE 104

DIAMOND BAR, CA 917653500

9095948331

PROVIDENCE MEDICAL FOUNDATION

1950 SUNNY CREST DR, SUITE 2900

FULLERTON, CA 928353641

7149925350

Source: CMS National Downloadable File, September 2026.

JONATHAN OU, MD | HealthCareAtlasUSA