NPPES file of Aug 9, 2026

Michael Duane Williams, MD

Family Medicine Physician · Monona, WI

Michael Duane Williams, MD is a family medicine physician with a practice address in Monona, Wisconsin, and NPI 1003850967, issued on Jun 15, 2006. Check the license (Wisconsin 49092-20, 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 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1003850967
Name
Michael Duane Williams
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License numbers
49092-20 WI
49092 WI
Self-reported in NPPES; status is on the state search
Practice location
1050 E Broadway, Monona, WI 53716
Phone
(608) 287-5899
Enumerated
Jun 15, 2006
Record last updated
Dec 16, 2022
Fax
(608) 251-2332
Medicare enrollment
Enrolled (PECOS I20060808000581); accepts Medicare assignment
Medical or professional school
University Of Colorado School Of Medicine, Denver, 2003
Telehealth
Offers telehealth (CMS)
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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Also registered at 1050 E Broadway

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

  1. Mark Anderson, MDFamily Medicine Physician1952537375
  2. Shannon Anderson, FNP-C, APNPFamily Nurse Practitioner1710488648
  3. Amy Bauman, DOFamily Medicine Physician1205060001
  4. Sarah Bergstrom, NPFamily Nurse Practitioner1689546640
  5. Michelle Bryan, M.D.Family Medicine Physician1437388618
  6. Valerie Bucane, LPCProfessional Counselor1609170117

Verify Michael Duane Williams in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 49092-20
    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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67% fewer Medicare Part D claims than the average family medicine physician in 2024

1,180 Medicare Part D claims for 231 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 93 claims were for opioids.

  1. Michael Williams1,180
  2. Specialty average3,544

Most prescribed

  1. Levothyroxine Sodium52 claims
  2. Atorvastatin Calcium42 claims
  3. Amlodipine Besylate39 claims
  4. Lisinopril33 claims
  5. Hydrocodone-Acetaminophen32 claims
  6. Losartan Potassium30 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through one group practice

  1. University OF Wisconsin Medical Foundation IncMonona, WI

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

Michael Duane Williams among 3,765 family medicine physician records in Wisconsin

Michael Duane Williams, MD 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 2006, is newer than 10% of them.

  • NPI issued2006 · 10% of these records are older, 46% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated2003 · median 2007 among the 2,347 with a school on file
  • Record last updated2022 · 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).

27 family medicine physician records list a practice address in Monona

They are 27 of the 314 NPPES records with a practice address in Monona, and 3,765 family medicine physician records in Wisconsin.

The 8 family medicine physician records with the nearest ZIP codes

  1. Daniel Barry, MDMadison, WI 537161255381026
  2. Calvin Bruce, MDMadison, WI 537161508824665
  3. Robert Cambray, M.D.Madison, WI 537161194712786
  4. Derek Clevidence, MD, PHDMonona, WI 537161093774135
  5. Ann Evensen, MDMonona, WI 537161801855812
  6. Ellen Flannery, MDMadison, WI 537161194787416
  7. Gaspar Giorgi, M.D.Madison, WI 537161558323592
  8. Peter Harnish, MDMadison, WI 537161194777599

Common questions

What is Michael Duane Williams, MD's NPI number?

Michael Duane Williams, MD's National Provider Identifier (NPI) is 1003850967, issued on Jun 15, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Michael Duane Williams, MD located?

The NPPES record lists a practice address at 1050 E Broadway, Monona, WI, 53716. Phone: (608) 287-5899. Providers update this record themselves, so call before visiting.

How can I verify Michael Duane Williams, MD's license?

NPPES lists Wisconsin license number 49092-20, 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.

How much does Michael Duane Williams, MD prescribe under Medicare Part D?

In 2024, Michael Duane Williams, MD had 1,180 Medicare Part D claims for 231 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.

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.

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.