NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Leon J. Radant, M.D.

Family Medicine Physician in Mauston, WI · enumerated 2005.

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

National Provider Identifier

1982691457

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Leon J. Radant
Credential M.D.
Sex Male
Practice address 1040 Division St, Mauston, WI, 53948
Enumeration date Sep 30, 2005
Last updated in NPPES Mar 15, 2021

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 21582 (WI) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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

Is NPI 1982691457 active?
Yes, as of the latest NPPES snapshot, NPI 1982691457 is active (record last updated 2021-03-15).
How do I verify Leon Radant's NPI record?
Cross-check NPI 1982691457 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 →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-03-15.