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 E KOON, MD

FAMILY PRACTICE

Medical school: LOMA LINDA UNIVERSITY SCHOOL OF MEDICINE

Graduated: 1998

Also: ADDICTION MEDICINE

NPI: 1285701128

Practice Locations (1)

SOUTHERN CALIFORNIA PERMANENTE MEDICAL GROUP

9961 SIERRA AVE

FONTANA, CA 923356720

9094275000

Source: CMS National Downloadable File, September 2026.

SEAN KOON, MD | HealthCareAtlasUSA