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

OLIVER L MASON, MD

INTERNAL MEDICINE

Medical school: UNIVERSITY OF CALIFORNIA, SAN FRANCISCO SCHOOL OF MEDICINE

Graduated: 1984

NPI: 1871606434

Practice Locations (1)

2776 PACIFIC AVE

LONG BEACH, CA 908062613

5629992000

Source: CMS National Downloadable File, September 2026.

OLIVER MASON, MD | HealthCareAtlasUSA