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

DIANA CHRISTA HALLORAN, MD

EMERGENCY MEDICINE

Graduated: 2020

Also: HOSPICE/PALLIATIVE CARE

Offers telehealth

NPI: 1548897325

Practice Locations (6)

SUTTER BAY MEDICAL FOUNDATION

2001 DWIGHT WAY

BERKELEY, CA 947042608

5102041591

SUTTER BAY MEDICAL FOUNDATION

20101 LAKE CHABOT RD

CASTRO VALLEY, CA 945465305

5108863400

SUTTER BAY MEDICAL FOUNDATION

20103 LAKE CHABOT RD

CASTRO VALLEY, CA 945465305

5107273256

SUTTER BAY MEDICAL FOUNDATION

3200 KEARNEY ST

FREMONT, CA 945382299

5104901222

SUTTER BAY MEDICAL FOUNDATION

370 DISTEL CIR

LOS ALTOS, CA 940221404

6502545200

SUTTER BAY MEDICAL FOUNDATION

3100 SUMMIT ST, FL 2

OAKLAND, CA 946093412

5108698865

Source: CMS National Downloadable File, September 2026.

DIANA HALLORAN, MD | HealthCareAtlasUSA