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

GREGORY J BELLIG, MD

ANESTHESIOLOGY

Medical school: GEORGETOWN UNIVERSITY SCHOOL OF MEDICINE

Graduated: 1998

NPI: 1558354993

Practice Locations (3)

CEP AMERICA - ANESTHESIA PC

2000 MOWRY AVE

FREMONT, CA 945381716

5107971111

PREMIER ANESTHESIA OF CALIFORNIA PC

5555 W LAS POSITAS BLVD

PLEASANTON, CA 945884000

6786907808

CEP AMERICA - ANESTHESIA PC

1601 YGNACIO VALLEY RD

WALNUT CREEK, CA 945983122

9259393000

Source: CMS National Downloadable File, September 2026.