Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dean E Hammer, PSY.D.

Clinical Psychologist in South Londonderry, VT · enumerated 2006.

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

National Provider Identifier

1104981364

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Registry record

Entity type Individual (Type 1)

Name Dean E Hammer

Credential PSY.D.

Sex Male

Practice address 17 Hearthstone Lane, South Londonderry, VT, 05155

Phone (802) 228-4564

Enumeration date Dec 27, 2006

Last updated in NPPES May 31, 2024

Taxonomy & licenses

103TA0400X Addiction (Substance Use Disorder) Psychologist Behavioral Health & Social Service Providers · License 048-0000896 (VT) Secondary

103T00000X Psychologist Behavioral Health & Social Service Providers · License 048-0000896 (VT) Secondary

103TB0200X Cognitive & Behavioral Psychologist Behavioral Health & Social Service Providers · License 048-0000896 (VT) Secondary

103TC1900X Counseling Psychologist Behavioral Health & Social Service Providers · License 048-0000896 (VT) Secondary

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 048-0000896 (VT) Primary

PSYD · Doctor of Psychology: A clinical doctorate in psychology focused on professional practice. About the PSYD credential

Other identifiers

Identifier	Type	State	Issuer
69789	Other	VT	BLUE CROSS
2340554	Other	VT	CIGNA
1013953	Medicaid	VT	-

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

How do I verify Dean Hammer's NPI record?

Cross-check NPI 1104981364 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1104981364 active?

Yes, as of the latest NPPES snapshot, NPI 1104981364 is active (record last updated 2024-05-31).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-05-31.