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

SERGIO O NEIRA, MD

INTERNAL MEDICINE

Graduated: 1973

NPI: 1043373194

Practice Locations (2)

PRIMARY MEDICAL GROUP OF VENTURA COUNTY INC

1901 OUTLET CTR DR, SUITE 200

OXNARD, CA 930360666

8059818300

SPANISH HILLS MEDICAL GROUP INC

1901 OUTLET CTR DR, SUITE 200

OXNARD, CA 930360666

8059818300

Source: CMS National Downloadable File, September 2026.

SERGIO NEIRA, MD | HealthCareAtlasUSA