Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Carol Yareli Castillo

Case Manager/Care Coordinator in Montclair, CA · enumerated 2016 · practices at Ontario Montclair School District.

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

National Provider Identifier

1730633546

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Registry record

Entity type Individual (Type 1)

Name Carol Yareli Castillo

Sex Female

Practice address 10200 Lehigh Ave, Montclair, CA, 91763

Phone (909) 445-1616

Fax (909) 445-1620

Enumeration date Aug 9, 2016

Last updated in NPPES Aug 9, 2016

Taxonomy & licenses

171M00000X Case Manager/Care Coordinator Other Service Providers Primary

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.

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Frequently asked questions

What is the NPI number for Carol Castillo?

The National Provider Identifier (NPI) for Carol Castillo is 1730633546, a Type 1 (individual) record in the CMS NPPES registry.

Where does Carol Castillo practice?

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

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-08-09.