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

MATTHEW A WILLIAMSON, PA

PHYSICIAN ASSISTANT

Graduated: 2005

NPI: 1831173111

Practice Locations (7)

ADVENTIST HEALTH PHYSICIANS NETWORK

23 N MAIN ST, SUITE 101

ANGELS CAMP, CA 952228001

2097369130

SONORA COMMUNITY HOSPITAL

1000 GREENLEY RD, MEDICAL STAFF

Sonora, CA 953705200

SIERRA EMERGENCY MEDICAL GROUP INC

1000 GREENLEY RD

SONORA, CA 953705200

2095365000

SONORA COMMUNITY HOSPITAL

680 GUZZI LN

SONORA, CA 953705288

ADVENTIST HEALTH PHYSICIANS NETWORK

729 PAULINE COURT

SONORA, CA 95370

2095888068

ADVENTIST HEALTH PHYSICIANS NETWORK

14540 MONO WAY

SONORA, CA 953708858

2095366680

SONORA COMMUNITY HOSPITAL

1000 GREENLEY RD

SONORA, CA 953705200

2095365000

Source: CMS National Downloadable File, September 2026.

MATTHEW WILLIAMSON, PA | HealthCareAtlasUSA