Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Gillum Psychological & Counseling Services

Cognitive & Behavioral Psychologist in Williamsport, PA · enumerated 2013 · authorized official Michael Gillum, Owner/Director.

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

National Provider Identifier

1003248451

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Registry record

Entity type Organization (Type 2)

Legal business name Gillum Psychological & Counseling Services

Practice address 705 Washington Boulevard, Suite 100, Williamsport, PA, 17701

Phone (570) 321-6390

Fax (570) 321-6393

Enumeration date Aug 7, 2013

Last updated in NPPES Jan 31, 2025

Taxonomy & classification

103T00000X Psychologist Behavioral Health & Social Service Providers Secondary

103TB0200X Cognitive & Behavioral Psychologist Behavioral Health & Social Service Providers Primary

103TC2200X Clinical Child & Adolescent Psychologist Behavioral Health & Social Service Providers Secondary

Authorized official

Name Michael Gillum

Title Owner/Director

Phone (570) 321-6390

Other identifiers

Identifier	Type	State	Issuer
001553383	Medicaid	PA	-

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

What type of organization is Gillum Psychological & Counseling Services?

Gillum Psychological & Counseling Services is registered in NPPES as a Cognitive & Behavioral Psychologist (its primary provider taxonomy).

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-01-31.