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

SEAN O RASSMAN, MD

ORTHOPEDIC SURGERY

Graduated: 1999

Also: SPORTS MEDICINE

NPI: 1730237686

Practice Locations (2)

SOUTHERN CALIFORNIA PERMANENTE MEDICAL GROUP

9961 SIERRA AVE

FONTANA, CA 923356720

9094275000

SOUTHERN CALIFORNIA PERMANENTE MEDICAL GROUP

2295 S VINEYARD AVE

ONTARIO, CA 917617925

9097245000

Source: CMS National Downloadable File, September 2026.

SEAN RASSMAN, MD | HealthCareAtlasUSA