Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Alan Castillo, SW

Social Worker in Staten Island, NY · enumerated 2017.

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

National Provider Identifier

1831619006

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Registry record

Entity type Individual (Type 1)

Name Alan Castillo

Credential SW

Sex Male

Practice address 4024 Amboy Rd, Staten Island, NY, 10308

Phone (718) 984-9022

Fax (718) 984-9620

Enumeration date Jun 20, 2017

Last updated in NPPES Jul 21, 2022

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers · License 081452 (NY) Primary

171M00000X Case Manager/Care Coordinator Other Service Providers Secondary

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 Alan Castillo?

The National Provider Identifier (NPI) for Alan Castillo is 1831619006, a Type 1 (individual) record in the CMS NPPES registry.

Where does Alan Castillo practice?

The practice location on file with NPPES is in Staten Island, NY. 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 2022-07-21.