NPPES file of Aug 9, 2026

Leon J. Radant, M.D.

Family Medicine Physician · Mauston, WI

Leon J. Radant, M.D. is a family medicine physician with a practice address in Mauston, Wisconsin, and NPI 1982691457, issued on Sep 30, 2005. Check the license (Wisconsin 21582, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1982691457
Name
Leon J. Radant
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
21582 WI
Self-reported in NPPES; status is on the state search
Practice location
1040 Division St, Mauston, WI 53948
Phone
(608) 847-5000
Enumerated
Sep 30, 2005
Record last updated
Mar 15, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20100319000278); accepts Medicare assignment
Medical or professional school
University Of Wisconsin School Of Medicine, 1977
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest family medicine physician records → All 3,765 in Wisconsin → Look up another NPI →

Also registered at 1040 Division St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Timothy Bjelland, D.O.Family Medicine Physician1811984305
  2. Randall Brandt, PACPhysician Assistant1710978754
  3. Gregory Burgess, PA-CSurgical Physician Assistant1932458932
  4. Kevin Butterfield, DOInternal Medicine Physician1184611592
  5. Megan Byrnes, MDFamily Medicine Physician1184294902
  6. Cristina Custer, NPNurse Practitioner1548241821

Verify Leon J. Radant in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 21582    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Wisconsin license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Mile Bluff Medical Center IncMauston, WI

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Leon J. Radant among 3,765 family medicine physician records in Wisconsin

Leon J. Radant, M.D. is one of 3,765 family medicine physician records with a practice address in Wisconsin. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 90% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated1977 · median 2007 among the 2,347 with a school on file
  • Record last updated2021 · 56% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

17 family medicine physician records list a practice address in Mauston

They are 17 of the 266 NPPES records with a practice address in Mauston, and 3,765 family medicine physician records in Wisconsin.

All 3,765 in Wisconsin → Every provider in Mauston → Family Medicine Physician nationwide →

The 8 family medicine physician records with the nearest ZIP codes

  1. Timothy Bjelland, D.O.Mauston, WI 539481811984305
  2. Angela Gatzke-Plamann, MDMauston, WI 539481417170788
  3. Ann Hoffmann, M.D.Mauston, WI 539481467449942
  4. David Hoffmann, M.D.Mauston, WI 539481235126590
  5. Daniel Kattenbraker, M.D.Mauston, WI 539481841287323
  6. June Lewandoski, M.D.Mauston, WI 539481417947573
  7. James Logan, M.D.Mauston, WI 539481851388334
  8. John Murphy, MDMauston, WI 539481780686006

Common questions

What is Leon J. Radant, M.D.'s NPI number?

Leon J. Radant, M.D.'s National Provider Identifier (NPI) is 1982691457, issued on Sep 30, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Leon J. Radant, M.D. located?

The NPPES record lists a practice address at 1040 Division St, Mauston, WI, 53948. Phone: (608) 847-5000. Providers update this record themselves, so call before visiting.

How can I verify Leon J. Radant, M.D.'s license?

NPPES lists Wisconsin license number 21582, as entered by the provider. Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.