Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Maricela Estrada, PA-C

Physician Assistant in Atwater, CA · enumerated 2007 · practices at Castle Family Health Centers Inc..

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

National Provider Identifier

1851574099

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Registry record

Entity type Individual (Type 1)

Name Maricela Estrada

Credential PA-C

Sex Female

Practice address 1251 Grove Ave, Atwater, CA, 95301

Phone (209) 358-8425

Fax (209) 358-0123

Enumeration date Dec 11, 2007

Last updated in NPPES Jan 7, 2015

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA18581 (CA) Primary

Other identifiers

Identifier	Type	State	Issuer
PA18581	Other	CA	LICENSE

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

Where does Maricela Estrada practice?

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

What is the NPI number for Maricela Estrada?

The National Provider Identifier (NPI) for Maricela Estrada is 1851574099, a Type 1 (individual) record in the CMS NPPES registry.

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Pierre Scales Obstetrics Physician · Atwater, CA NPI 1679544662 Castle Family Health Centers Inc. Adult Day Care Clinic/Center · Atwater, CA NPI 1073544334

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-01-07.