Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Ruth Ann Williams, PTA

Physical Therapy Assistant in Hudsonville, MI · enumerated 2007.

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

National Provider Identifier

1861616609

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Registry record

Entity type Individual (Type 1)

Name Mrs. Ruth Ann Williams

Credential PTA

Sex Female

Practice address 3650 Van Buren St, Hudsonville, MI, 49426

Phone (616) 669-1520

Enumeration date Apr 12, 2007

Last updated in NPPES Jul 22, 2024

Taxonomy & licenses

225200000X Physical Therapy Assistant Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 7563A (AZ) Secondary

225200000X Physical Therapy Assistant Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 06003223A (IN) Secondary

225200000X Physical Therapy Assistant Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 8399 (CA) Secondary

225200000X Physical Therapy Assistant Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 5502002579 (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 Ruth Williams practice?

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

What is the NPI number for Ruth Williams?

The National Provider Identifier (NPI) for Ruth Williams is 1861616609, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-07-22.