Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Arsenio Santamaria, LMSW-CC

Clinical Social Worker in Gray, ME · enumerated 2018.

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

National Provider Identifier

1750871653

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Registry record

Entity type Individual (Type 1)

Name Mr. Arsenio Santamaria

Credential LMSW-CC

Sex Male

Practice address 26 Main, Gray, ME, 04039

Phone (207) 657-7700

Enumeration date May 16, 2018

Last updated in NPPES May 16, 2018

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License LC8421 (ME) 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

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Arsenio Santamaria?

Arsenio Santamaria is registered in NPPES with the primary taxonomy of Clinical Social Worker. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-05-16.