James Allen, D.O.
NPI 1902099518 · Internal Medicine Physician · San Ramon, CA
James Allen, D.O. is a Internal Medicine Physician provider in San Ramon, CA (NPI 1902099518).
Provider details
- NPI number
- 1902099518
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- OP61072641 (WA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Additional practice locations (1)
- 1813 Sumner AveAberdeen, WA 98520-4600Phone: (360) 538-1293Fax: (360) 538-3908
Registry dates
- Enumerated
- 2007-08-27
- Last updated
- 2026-03-17
- Certified
- 2026-03-17
Frequently asked questions
- What is James Allen's NPI number?
- James Allen's National Provider Identifier (NPI) is 1902099518, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Allen's specialty?
- James Allen is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is James Allen located?
- James Allen's practice location on file with NPPES is 6001 Bollinger Canyon Rd, San Ramon, CA 94583-7170.
- What is James Allen's phone number?
- The practice phone number listed in the NPPES registry for James Allen is (925) 842-3224.
- Is James Allen's NPI active?
- Yes — James Allen's NPI (1902099518) is active in the NPPES registry as of the last update on 2026-03-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.