Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Marie Clair Willow, CPS

Peer Specialist in Riverton, WY · enumerated 2023.

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

National Provider Identifier

1386331874

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Registry record

Entity type Individual (Type 1)

Name Marie Clair Willow

Credential CPS

Sex Female

Practice address 450 S Federal Blvd, Riverton, WY, 82501

Phone (307) 349-5045

Enumeration date Apr 24, 2023

Last updated in NPPES Apr 24, 2023

Taxonomy & licenses

175T00000X Peer Specialist Other Service Providers · License 108 (WY) 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

How do I verify Marie Willow's NPI record?

Cross-check NPI 1386331874 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1386331874 active?

Yes, as of the latest NPPES snapshot, NPI 1386331874 is active (record last updated 2023-04-24).

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Patricia Corso Addiction (Substance Use Disorder) Counselor · Riverton, WY NPI 1649742065 Julie Rogers Peer Specialist · Riverton, WY NPI 1851078257 Kenzie Monroe Peer Specialist · Riverton, WY NPI 1598518268 Jessica Pecarina Peer Specialist · Riverton, WY NPI 1851145742 Byron Bell Peer Specialist · Riverton, WY NPI 1497586085 Scott Anderson Peer Specialist · Riverton, WY NPI 1821805375

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-04-24.