Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ash-Leigh Marie Kowalczyk, COTA

Occupational Therapy Assistant in New London, WI · enumerated 2018 · practices at North Eastern Wisconsin Rehabilitation Corporation.

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

National Provider Identifier

1831669712

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Registry record

Entity type Individual (Type 1)

Name Ash-Leigh Marie Kowalczyk

Credential COTA

Sex Female

Practice address 307 Smith St, New London, WI, 54961

Phone (920) 982-5440

Fax (920) 250-5727

Enumeration date Dec 4, 2018

Last updated in NPPES Dec 4, 2018

Taxonomy & licenses

224Z00000X Occupational Therapy Assistant Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 5549-27 (WI) 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

How do I verify Ash-Leigh Kowalczyk's NPI record?

Cross-check NPI 1831669712 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1831669712 active?

Yes, as of the latest NPPES snapshot, NPI 1831669712 is active (record last updated 2018-12-04).

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North Eastern Wisconsin Rehabilitation Corporation Physical Therapist · New London, WI NPI 1417017369 Lisbeth Hintz Speech-Language Pathologist · New London, WI NPI 1538381025 Linda Collins Occupational Therapist · New London, WI NPI 1184830259

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-12-04.