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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mary C Wisniewski, ATC

Athletic Trainer in Chicago, IL · enumerated 2006.

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

National Provider Identifier

1881662229

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Registry record

Entity type Individual (Type 1)
Name Mary C Wisniewski
Credential ATC
Sex Female
Practice address 5530 S Ellis Ave, Chicago, IL, 60637
Phone (773) 753-4708
Fax (773) 834-4470
Enumeration date Mar 10, 2006
Last updated in NPPES Jul 13, 2026

Taxonomy & licenses

2255A2300X Athletic Trainer Respiratory, Developmental, Rehabilitative and Restorative Service Providers 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

Is NPI 1881662229 active?
Yes, as of the latest NPPES snapshot, NPI 1881662229 is active (record last updated 2026-07-13).
How do I verify Mary Wisniewski's NPI record?
Cross-check NPI 1881662229 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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