NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ashley Tashelle Crisostomo, FNP

Family Nurse Practitioner in Oxnard, CA · enumerated 2017 · practices at Minh Quang Bui MD Prof Corp.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1356862791

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Ashley Tashelle Crisostomo
Credential FNP
Sex Female
Practice address 631 Cooper Rd, Oxnard, CA, 93030
Phone (805) 487-9150
Fax (805) 487-9152
Enumeration date Jul 6, 2017
Last updated in NPPES Feb 27, 2023

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 752488 (CA) Primary
FNP · Family Nurse Practitioner: A nurse practitioner certified in family practice across the lifespan. About the FNP credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Ashley Crisostomo?
Ashley Crisostomo is registered in NPPES with the primary taxonomy of Family Nurse Practitioner. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-02-27.