Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Harold Longenecker, PHD

Psychologist in Auburn, ME · enumerated 2009.

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

National Provider Identifier

1639313109

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Registry record

Entity type Individual (Type 1)

Name Harold Longenecker

Credential PHD

Sex Male

Practice address 415 Rodman Rd, Auburn, ME, 04210

Phone (207) 376-3022

Fax (207) 333-3501

Enumeration date Apr 28, 2009

Last updated in NPPES Oct 27, 2009

Taxonomy & licenses

103T00000X Psychologist Behavioral Health & Social Service Providers · License PS1124 (ME) Primary

PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential

Other identifiers

Identifier	Type	State	Issuer
431875799	Medicaid	ME	-

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 NPI 1639313109 active?

Yes, as of the latest NPPES snapshot, NPI 1639313109 is active (record last updated 2009-10-27).

How do I verify Harold Longenecker's NPI record?

Cross-check NPI 1639313109 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-10-27.