Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Marsha Thomas

Peer Specialist in Saint Louis, MO · enumerated 2026.

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

National Provider Identifier

1245175777

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Registry record

Entity type Individual (Type 1)

Name Marsha Thomas

Sex Female

Practice address 4249 Clayton Ave, Saint Louis, MO, 63110

Phone (314) 935-4748

Enumeration date Apr 21, 2026

Last updated in NPPES Apr 21, 2026

Taxonomy & licenses

175T00000X Peer Specialist Other Service Providers 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 Marsha Thomas practice?

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

What is the NPI number for Marsha Thomas?

The National Provider Identifier (NPI) for Marsha Thomas is 1245175777, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-04-21.