NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Cristian Castellanos Velasquez

Nurse's Aide in Adelphi, MD · enumerated 2021.

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

National Provider Identifier

1851963771

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Cristian Castellanos Velasquez
Sex Male
Practice address 10514 Deakins Hall Dr, Adelphi, MD, 20783
Enumeration date Jul 12, 2021
Last updated in NPPES Jul 12, 2021

Taxonomy & licenses

376K00000X Nurse's Aide Nursing Service Related Providers · License CNA20212065 (MD) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Cristian Castellanos Velasquez practice?
The practice location on file with NPPES is in Adelphi, MD. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Cristian Castellanos Velasquez?
The National Provider Identifier (NPI) for Cristian Castellanos Velasquez is 1851963771, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-07-12.