Data from the NPPES registry. May not reflect recent changes — verify at nppes.cms.hhs.gov.
DR. JAMES A. BLACKWELL, M.D.
ActiveDR. JAMES A. BLACKWELL, M.D. is a Internal Medicine healthcare provider located in SAN RAMON, California. NPI 1255424289 is currently active in the NPPES registry. Verify at CMS.
Internal Medicine · SAN RAMON, CA
Registration Details
- NPI Number
- 1255424289
- Provider Type
- Individual
- Gender
- Male
- NPI Issued
- Oct 2, 2006 (19.880027634355 yrs)
- Last Updated
- Jan 25, 2026
- License
-
C-33674 (CA)
Practice Information
- Address
-
154 ARAPAHO CIRSAN RAMON, CA, 945832498Browse CA providers · Browse ZIP 94583
- Phone
- 9258039358
- Fax
- 9253610758
- Primary Specialty
-
Internal Medicine
207R00000X
Other Internal Medicine Providers in SAN RAMON, CA
| Name | Credential | NPI |
|---|---|---|
| DR. FRANK CHI BING HSUEH | M.D. | 1144224742 |
| DR. KUSHAL CHHABRA | MD | 1255332953 |
| PAUL KELSEY WHEELER | MD | 1598755787 |
| SUE JOHNSON KNIGHT | MD | 1619968443 |
| DR. SUJATHA RAJAGOPALAN | M.D. | 1679558373 |
| JANICE M LEE | MD | 1407835432 |
Data sourced from the NPPES National Provider Identifier registry. This information is for informational purposes only and is not a substitute for verifying credentials with the appropriate licensing authority. For official verification, use the NPPES NPI Registry or the relevant state medical board.