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

THERESA BOI NGOC NGUYEN, OD

OPTOMETRY

Graduated: 2021

NPI: 1437896180

Practice Locations (1)

JOHANN J SCHLAGER OD INC

3178 COLLINS DR, SUITE A

MERCED, CA 953483155

2093831246

Source: CMS National Downloadable File, September 2026.

THERESA NGUYEN, OD | HealthCareAtlasUSA