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

JOHN ULRIC ZINK, MD

GENERAL SURGERY

Medical school: UNIVERSITY OF SOUTHERN CALIFORNIA KECK SCHOOL OF MEDICINE

Graduated: 2007

NPI: 1366628935

Practice Locations (7)

BASS MEDICAL GROUP

1505 SAINT ALPHONSUS WAY

ALAMO, CA 945071570

9259326330

BASS MEDICAL GROUP

2637 SHADELANDS DR

Walnut Creek, CA 945982512

MEDAMERICA PHYSICIAN SOLUTIONS PC

112 LA CASA VIA, SUITE 135

WALNUT CREEK, CA 945983023

9254714291

CEP AMERICA - AUC PC

240 LA CASA VIA, SUITE 200

WALNUT CREEK, CA 945984866

9259456644

BASS MEDICAL GROUP

2637 SHADELANDS DR

WALNUT CREEK, CA 945982512

9253784512

JOHN MUIR TRAUMA PHYSICIANS BILLING SERVICE

1601 YGNACIO VLY RD

WALNUT CREEK, CA 945960921

9259393000

JOHN MUIR TRAUMA PHYSICIANS BILLING SERVICE

1601 YGNACIO VALLEY RD, SUITE 100

WALNUT CREEK, CA 945983122

9259393000

Source: CMS National Downloadable File, September 2026.