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

HAI D NGUYEN, MD

INTERNAL MEDICINE

Graduated: 1997

NPI: 1558516963

Practice Locations (2)

ALERTIVE HEALTHCARE MEDICAL GROUP APC

4500 BROCKTON AVE, SUITE 305

RIVERSIDE, CA 925014027

9518775874

GRACE HOSPITALIST GROUP INC

36485 INLAND VALLEY DR

WILDOMAR, CA 925959681

9516771111

Source: CMS National Downloadable File, September 2026.