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

KATHERINE A WESTBROOK, NP

NURSE PRACTITIONER

Graduated: 1990

NPI: 1215950159

Practice Locations (1)

JOHN MUIR PHYSICIAN NETWORK

1479 YGNACIO VALLEY RD, SUITE 150

WALNUT CREEK, CA 945982986

9259414058

Source: CMS National Downloadable File, September 2026.

KATHERINE WESTBROOK, NP | HealthCareAtlasUSA