Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Ashley Marie Castillo

Internal Medicine Physician in Sacaton, AZ · enumerated 2014.

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

National Provider Identifier

1124448246

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Registry record

Entity type Individual (Type 1)

Name Mrs. Ashley Marie Castillo

Sex Female

Practice address 483 W Seed Farm Rd, Sacaton, AZ, 85147

Phone (602) 528-1200

Fax (602) 528-1483

Enumeration date Apr 17, 2014

Last updated in NPPES Jun 20, 2018

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 53995 (AZ) Primary

Other identifiers

Identifier	Type	State	Issuer
53995	Other	AZ	ARIZONA MEDICAL LICENSE NUMBER

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

What is the NPI number for Ashley Castillo?

The National Provider Identifier (NPI) for Ashley Castillo is 1124448246, a Type 1 (individual) record in the CMS NPPES registry.

Where does Ashley Castillo practice?

The practice location on file with NPPES is in Sacaton, AZ. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-06-20.