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

ANN L MAI, MD

INTERNAL MEDICINE

Graduated: 1995

Offers telehealth

NPI: 1215001904

Practice Locations (1)

4950 BARRANCA PKWY, SUITE 207

IRVINE, CA 926048648

9492629700

Source: CMS National Downloadable File, September 2026.