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

SHANNON O'BRIEN, CSW

CLINICAL SOCIAL WORKER

Graduated: 2014

NPI: 1962088062

Practice Locations (1)

626 W LANCASTER BLVD, UNIT 128

LANCASTER, CA 935343108

6614345997

Source: CMS National Downloadable File, September 2026.

SHANNON O'BRIEN, CSW | HealthCareAtlasUSA