Data from the NPPES registry. May not reflect recent changes — verify at nppes.cms.hhs.gov.
FRANK CASTILLO JR., NP
Active Sole ProprietorFRANK CASTILLO JR., NP is a Nurse Practitioner healthcare provider located in WALNUT CREEK, California. NPI 1639623770 is currently active in the NPPES registry. Verify at CMS.
Nurse Practitioner · WALNUT CREEK, CA
Registration Details
- NPI Number
- 1639623770
- Provider Type
- Individual
- Gender
- Male
- NPI Issued
- Aug 5, 2016 (10.031292174984 yrs)
- Last Updated
- Sep 22, 2025
- Licenses
-
95004634 (CA)95004634 (CA)
- Sole Proprietor
- Yes
Practice Information
- Address
-
100 N WIGET LN STE 290WALNUT CREEK, CA, 945985901Browse CA providers · Browse ZIP 94598
- Phone
- 9259377740
- Primary Specialty
-
Nurse Practitioner
363L00000X
- Additional Specialty
- Nurse Practitioner
Other Nurse Practitioner Providers in WALNUT CREEK, CA
| Name | Credential | NPI |
|---|---|---|
| PATRICIA B MCCARLEY | RN NP | 1801897723 |
| ALLISON HANSON | NP | 1376537589 |
| DIANE SEIPEL SHERARD | R.N. | 1386615151 |
| ANNE M THIBAULT | N.P. | 1942235411 |
| KAREN L SONNENTHAL | N.P. | 1942229463 |
| MEREDYTH L YOUNG | N.P. | 1740209279 |
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.