Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mary Helen Wieczorek, ATC/LAT
Athletic Trainer in Milwaukee, WI · enumerated 2017.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1023536877
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Registry record
Entity type Individual (Type 1)
Name Mary Helen Wieczorek
Credential ATC/LAT
Sex Female
Practice address 770 N 12th St, Milwaukee, WI, 53233
Phone (414) 288-0328
Fax (414) 288-6477
Enumeration date Aug 31, 2017
Last updated in NPPES Jun 15, 2020
Taxonomy & licenses
2255A2300X Athletic Trainer Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 1420-39 (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.
Frequently asked questions
Is NPI 1023536877 active?
Yes, as of the latest NPPES snapshot, NPI 1023536877 is active (record last updated 2020-06-15).
How do I verify Mary Wieczorek's NPI record?
Cross-check NPI 1023536877 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 → Brandon Yoder Athletic Trainer · Milwaukee, WI NPI 1811292006 Aaron Doering Athletic Trainer · Milwaukee, WI NPI 1558767053 Myles Fish Student in an Organized Health Care Education/Training Program · Milwaukee, WI NPI 1932744224 Noel Kruse Athletic Trainer · Milwaukee, WI NPI 1033948211 Matejka Abeita Athletic Trainer · Milwaukee, WI NPI 1396533907
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-06-15.