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

Mary Williams, COTA

Occupational Therapy Assistant in Evansville, IN · enumerated 2014 · practices at Aperion Care Lincoln LLC.

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

National Provider Identifier

1962813873

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Registry record

Entity type Individual (Type 1)

Name Mary Williams

Credential COTA

Sex Female

Practice address Evansville, IN, 47714

Phone (812) 422-8555

Enumeration date May 13, 2014

Last updated in NPPES May 13, 2014

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

Taxonomy & licenses

224Z00000X Occupational Therapy Assistant Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 32001897A (IN) 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.

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Frequently asked questions

Where does Mary Williams practice?

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

What is the NPI number for Mary Williams?

The National Provider Identifier (NPI) for Mary Williams is 1962813873, 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 2014-05-13.