Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Reginald Castillo, ATC, EMT-P

Paramedic in Crestwood, IL · enumerated 2017.

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

National Provider Identifier

1861933756

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Registry record

Entity type Individual (Type 1)

Name Reginald Castillo

Credential ATC, EMT-P

Sex Male

Practice address 4939 East Circle Dr. #206, Crestwood, IL, 60445

Phone (708) 388-9547

Enumeration date Mar 13, 2017

Last updated in NPPES Mar 13, 2017

Taxonomy & licenses

146L00000X Paramedic Emergency Medical 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 Reginald Castillo?

The National Provider Identifier (NPI) for Reginald Castillo is 1861933756, a Type 1 (individual) record in the CMS NPPES registry.

Where does Reginald Castillo practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-03-13.