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

Hannah Mae Erwin, MSOT, OTRL

Occupational Therapist in Sault Sainte Marie, MI · enumerated 2021.

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

National Provider Identifier

1366024721

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Hannah Mae Erwin

Credential MSOT, OTRL

Sex Female

Practice address Sault Sainte Marie, MI, 49783

Phone (906) 635-4426

Fax (906) 635-4610

Enumeration date Apr 26, 2021

Last updated in NPPES Feb 15, 2023

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

225X00000X Occupational Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 5201013221 (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

Is NPI 1366024721 active?

Yes, as of the latest NPPES snapshot, NPI 1366024721 is active (record last updated 2023-02-15).

How do I verify Hannah Erwin's NPI record?

Cross-check NPI 1366024721 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-02-15.