Search › California › Diagnostic Radiology Physician
Ralph Koenker, M.D
NPI 1891734265 · on the registry since 2006
Practice
- Address
- 250 Bon Air Rd
Greenbrae, CA 94904 - Phone
- (415) 925-7000
- Organisation at this address
- County Of Marin
Dana Forman, Inc.
Susan Nguyen Md Inc
Marin Community Clinic
Marin General HospitalInferred from a shared address, not stated in the registry. - Clinicians at this address
- 389
Additional practice sites
- 180 Rowland Way, Novato, CA
Registry record
- Primary taxonomy
- Diagnostic Radiology Physician
2085R0202X
- Also registered as
- Neuroradiology Physician
Vascular & Interventional Radiology Physician - Licence states on file
- CA
From the registry's licence fields, which are often incomplete.
- Sex
- Male
- Record last updated
- 2026-06-28
Source: CMS National Plan and Provider Enumeration System. Registration is not the same as practising, and the registry records no retirement — some people listed here no longer practise. More in California