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 / MO

MARY E JOHNSON, PA

PHYSICIAN ASSISTANT

Graduated: 2009

NPI: 1992944904

Practice Locations (1)

ST PETERS BONE AND JOINT SURGERY INC

4701 STATE HWY K

O FALLON, MO 633688692

6364413444

Source: CMS National Downloadable File, September 2026.

MARY JOHNSON, PA | HealthCareAtlasUSA