Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Jeffrey J Klunk, MS

Psychologist in Columbia, PA · enumerated 2006.

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

National Provider Identifier

1255382305

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Registry record

Entity type Individual (Type 1)

Name Mr. Jeffrey J Klunk

Credential MS

Sex Male

Practice address 306 N 7th St, Columbia, PA, 17512

Phone (717) 560-3782

Fax (717) 560-3787

Enumeration date May 13, 2006

Last updated in NPPES Apr 13, 2015

Taxonomy & licenses

103T00000X Psychologist Behavioral Health & Social Service Providers · License PS004321L (PA) Primary

Other identifiers

Identifier	Type	State	Issuer
188819	Other	PA	VALUE OPTIONS
50000097	Other	PA	CAPITAL BLUE CROSS

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 Klunk?

Jeffrey Klunk is registered in NPPES with the primary taxonomy of Psychologist. 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 2015-04-13.