Frank Castillo, NP Valid NPI

Individual provider · Nurse Practitioner · Walnut Creek, CA

NPI

1639623770

Type

Individual (Type 1)

Primary specialty

Nurse Practitioner

Specialty group

Physician Assistants & Advanced Practice Nursing Providers

Taxonomy code

363L00000X

License number

95004634 (CA)

Sex

Male

Sole proprietor

Yes

Enumerated

2016-08-05

Last updated

2025-09-22