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

Theresa M Horstman, LCSW

Clinical Social Worker in Hermitage, PA · enumerated 2006.

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

National Provider Identifier

1326128000

Verified

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Registry record

Entity type Individual (Type 1)

Name Theresa M Horstman

Credential LCSW

Sex Female

Practice address Hermitage, PA, 16148

Phone (724) 981-2773

Enumeration date Oct 16, 2006

Last updated in NPPES Apr 1, 2016

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 CW014101 (PA) Primary

LCSW · Licensed Clinical Social Worker: A social worker licensed for clinical practice including mental-health therapy. About the LCSW credential

Other identifiers

Identifier	Type	State	Issuer
336643	Other	VA	VALUE OPTIONS
552127	Other	PA	BCBS SEC65 SPECIAL SE
0011099910001	Other	PA	DPW
0489834	Other	PA	AETNA
202179	Other	-	UPMC POS HMO
25163861200	Other	-	COGNA
0489834	Other	PA	AETNA HMO MEDICARE
845744	Other	-	KHPW HMO
0789384	Other	OH	DPW
336643	Other	-	VALUE OPTIONS VA
000000115000	Other	-	ONE NATION BENEFIT ADMIN
251638612	Other	-	MEDICAL MUT PPO
845744	Other	PA	BCBS
E52896	Other	PA	HEALTH ASSURANCE
336643	Other	NY	VALUE OPTIONS
215580000	Other	-	MAGELLAN BEHAVIORAL
845744	Other	PA	BCBS PPO POS HMO TRAD

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 is the NPI number for Theresa Horstman?

The National Provider Identifier (NPI) for Theresa Horstman is 1326128000, a Type 1 (individual) record in the CMS NPPES registry.

Where does Theresa Horstman practice?

The practice location on file with NPPES is in Hermitage, PA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Jeanette Murray-Hall Professional Counselor · Hermitage, PA NPI 1619125309 Kimberly Clarke Clinical Social Worker · Hermitage, PA NPI 1437419181 Compass Community/Behavioral Health Agency · Hermitage, PA NPI 1043567811 Uber Counseling & Consultation Community/Behavioral Health Agency · Hermitage, PA NPI 1023365657 Sarah Burdett Professional Counselor · Hermitage, PA NPI 1487902698 Monarch Mental Health Services, LLC Mental Health Clinic/Center (Including Community Mental Health Center) · Hermitage, PA NPI 1609656669 Currie Counseling and Consulting, LLC Adult Mental Health Clinic/Center · Hermitage, PA NPI 1265291264

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-04-01.