NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Mr. Thomas Joseph Applegate, SOCIAL WORKER

Clinical Social Worker in Killingworth, CT · enumerated 2017 · practices at Cynthia L. Sarris, Lcsw, PA.

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

National Provider Identifier

1417460551

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Registry record

Entity type Individual (Type 1)
Name Mr. Thomas Joseph Applegate
Credential SOCIAL WORKER
Sex Male
Practice address Killingworth, CT, 06419
Phone (203) 641-0101
Fax (860) 663-2629
Enumeration date Nov 12, 2017
Last updated in NPPES Nov 12, 2017

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 001832 (CT) 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

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 Thomas Applegate?
Thomas Applegate 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-11-12.