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

Ms. Thea Guest, MS, LISW, NCC

Clinical Social Worker in Carroll, IA · enumerated 2015.

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

National Provider Identifier

1427422260

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Registry record

Entity type Individual (Type 1)

Name Ms. Thea Guest

Credential MS, LISW, NCC

Sex Female

Practice address Carroll, IA, 51401

Phone (712) 563-5285

Fax (855) 303-9139

Enumeration date Nov 17, 2015

Last updated in NPPES Apr 14, 2026

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 074609 (IA) Primary

Other identifiers

Identifier	Type	State	Issuer
6408605	Medicaid	IA	-
1140292	Medicaid	IA	-
0140292	Medicaid	IA	-

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 specialty is Thea Guest?

Thea Guest is registered in NPPES with the primary taxonomy of Clinical Social Worker. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-04-14.