NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Magdalen Stepek, DO

Occupational Medicine Physician in New Berlin, WI · enumerated 2007.

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

National Provider Identifier

1689853681

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Magdalen Stepek
Credential DO
Sex Female
Practice address 14555 W National Ave Ste 195, New Berlin, WI, 53151
Phone (262) 827-3290
Enumeration date Oct 26, 2007
Last updated in NPPES Nov 24, 2021

Taxonomy & licenses

2083X0100X Occupational Medicine Physician Allopathic & Osteopathic Physicians · License 50388-21 (WI) Primary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier Type State Issuer
P00617885 Other WI RR MEDICARE
1689853681 Medicaid WI -

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 Magdalen Stepek practice?
The practice location on file with NPPES is in New Berlin, WI. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Magdalen Stepek?
The National Provider Identifier (NPI) for Magdalen Stepek is 1689853681, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-11-24.