Healthcare Provider Details

I. General information

NPI: 1639623770
Provider Name (Legal Business Name): FRANK CASTILLO JR. NP
Entity Type: Individual
Gender: Male
Sole Proprietor: Y

II. Dates (important events)

Enumeration Date: 08/05/2016
Last Update Date: 09/22/2025
Certification Date: 09/22/2025
Deactivation Date:
Reactivation Date:

III. Provider practice location address

100 N WIGET LN STE 290
WALNUT CREEK CA
94598-5901
US

IV. Provider business mailing address

1450 TREAT BLVD STE 300
WALNUT CREEK CA
94597-2168
US

V. Phone/Fax

Practice location:
  • Phone: 925-937-7740
  • Fax:
Mailing address:
  • Phone: 925-952-2828
  • Fax:

VI. Provider taxonomy

Scope of Practice (Provider specialty)

# 1
Primary TaxonomyY
Taxonomy Code363L00000X
TaxonomyNurse Practitioner
License Number95004634
License Number StateCA
# 2
Primary TaxonomyN
Taxonomy Code363LA2100X
TaxonomyAcute Care Nurse Practitioner
License Number95004634
License Number StateCA

VIII. Authorized Official

Name:
Title or Position:
Credential:
Phone: