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

TAN K NGUYEN, MD

INTERNAL MEDICINE

Graduated: 1991

NPI: 1144273491

Practice Locations (2)

DEPARTMENT OF STATE HOSPITALS

3102 E HIGHLAND AVE

PATTON, CA 923697813

9166518811

ADVANCED SKIN CLINIC AND SURGERY PC

1310 SAN BERNARDINO RD, SUITE 207

UPLAND, CA 917864985

9099468600

Source: CMS National Downloadable File, September 2026.