Search › California › Internal Medicine Physician
James Allen, D.O
NPI 1902099518 · on the registry since 2007
Practice
- Address
- 6001 Bollinger Canyon Rd
Chevron Singapore-Orchard
San Ramon, CA 94583 - Phone
- (925) 842-3224
- Fax
- (925) 842-3242
- Clinicians at this address
- 3
Additional practice sites
- 1813 Sumner Ave, Aberdeen, WA
Registry record
- Primary taxonomy
- Internal Medicine Physician
207R00000X
- Also registered as
- Internal Medicine Physician
- Licence states on file
- WA, NY
From the registry's licence fields, which are often incomplete.
- Sex
- Male
- Record last updated
- 2026-03-17
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