NPI Portal NPI Lookup & Verification

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

Dr. Jeffrey D Hamilton, MSSA DMIN LCSW

Clinical Social Worker in Lancaster, PA · enumerated 2006 · practices at Paquette Psychological Services, LLC.

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

National Provider Identifier

1356392401

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Registry record

Entity type Individual (Type 1)
Name Dr. Jeffrey D Hamilton
Credential MSSA DMIN LCSW
Sex Male
Practice address Lancaster, PA, 17602
Phone (717) 392-1007
Fax (717) 392-0827
Enumeration date May 13, 2006
Last updated in NPPES Feb 29, 2012

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 CW014635 (PA) Primary

Other identifiers

Identifier Type State Issuer
50037505 Other PA CAPITAL BLUE CROSS
517420 Other PA VALUE OPTIONS

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 Jeffrey Hamilton?
Jeffrey Hamilton 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 2012-02-29.