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

RALPH M KOENKER, MD

DIAGNOSTIC RADIOLOGY

Medical school: UNIVERSITY OF CALIFORNIA, SAN DIEGO SCHOOL OF MEDICINE

Graduated: 1985

Also: INTERVENTIONAL RADIOLOGY

NPI: 1891734265

Practice Locations (8)

PRIMA MEDICAL FOUNDATION

1240 S ELISEO DR, SUITE 103

GREENBRAE, CA 949042026

4159257301

PRIMA MEDICAL FOUNDATION

1260 S ELIDEO DR

GREENBRAE, CA 949042009

PRIMA MEDICAL FOUNDATION

1350 S ELIDEO DR

GREENBRAE, CA 949042011

PRIMA MEDICAL FOUNDATION

250 BON AIR RD

GREENBRAE, CA 949041702

4159257301

CALIFORNIA ADVANCED IMAGING MEDICAL ASSOCIATES INC

180 ROWLAND WAY

NOVATO, CA 949455009

4152091500

PRIMA MEDICAL FOUNDATION

335 S MCDOWELL BLVD

PETALUMA, CA 949543507

4154933800

PRIMA MEDICAL FOUNDATION

4000 CIVIC CTR DR, SUITE 209

SAN RAFAEL, CA 949035233

4159258745

PRIMA MEDICAL FOUNDATION

1701 4TH ST, SUITE 120

SANTA ROSA, CA 954043661

7075237025

Source: CMS National Downloadable File, September 2026.

RALPH KOENKER, MD | HealthCareAtlasUSA