Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Tiffiny Lynn Harrington, MSW

Clinical Social Worker in Marshall, MI · enumerated 2006.

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

National Provider Identifier

1134156243

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Registry record

Entity type Individual (Type 1)

Name Ms. Tiffiny Lynn Harrington

Credential MSW

Sex Female

Practice address 707 E Mansion St, Marshall, MI, 49068

Phone (269) 966-5600

Fax (269) 966-5429

Enumeration date Jun 26, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 6802084209 (MI) Primary

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

Where does Tiffiny Harrington practice?

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

What is the NPI number for Tiffiny Harrington?

The National Provider Identifier (NPI) for Tiffiny Harrington is 1134156243, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.