NPPES file of Aug 9, 2026

Lesley J. Kieffer, DO

Family Medicine Physician · De Pere, WI

Lesley J. Kieffer, DO is a family medicine physician with a practice address in De Pere, Wisconsin, and NPI 1053638916, issued on Apr 30, 2010. Check the license (Wisconsin 56637-21, 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
1053638916
Name
Lesley J. Kieffer
Credential
DO
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
56637-21 WI
Self-reported in NPPES; status is on the state search
Practice location
1800 Lawrence Dr, De Pere, WI 54115
Phone
(920) 983-3220
Enumerated
Apr 30, 2010
Record last updated
Aug 24, 2015 (not updated in 11 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20130809000733); accepts Medicare assignment
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 1800 Lawrence Dr

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

  1. Stephanie Ansfield, PAPhysician Assistant1881743490
  2. Robert Cavanaugh, MDObstetrics & Gynecology Physician1295814176
  3. Corina Gerczak, PAPhysician Assistant1821050105
  4. Michael Hodulik, M.D.Family Medicine Physician1295784544
  5. Sue Huber, MSW LCSWClinical Social Worker1205853801
  6. Thomas Komp, DPMPodiatrist1265424162

Verify Lesley J. Kieffer in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 56637-21
    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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90% more Medicare Part D claims than the average family medicine physician in 2024

6,731 Medicare Part D claims for 540 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 25 claims were for opioids.

  1. Lesley Kieffer6,731
  2. Specialty average3,544

Most prescribed

  1. Losartan Potassium363 claims
  2. Atorvastatin Calcium360 claims
  3. Amlodipine Besylate344 claims
  4. Rosuvastatin Calcium343 claims
  5. Levothyroxine Sodium314 claims
  6. Omeprazole231 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.

Industry payments in 2024: $16.46

1 payment: education; the largest payer was E.R. Squibb & Sons, L.L.C. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Lesley Kieffer$16.46
  2. Specialty average$902.55

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Thedacare, IncorporatedWaupaca, WI

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

29 family medicine physician records list a practice address in De Pere

They are 29 of the 621 NPPES records with a practice address in De Pere, and 3,765 family medicine physician records in Wisconsin.

Other family medicine physician records in Wisconsin

  1. Ashraf AbbasAppleton, WI1558723775
  2. Ghudran Abdulal, MDNew Berlin, WI1083622666
  3. Yusuf Abdullah, DOSun Prairie, WI1437788478
  4. Vanessa Abejuela-Matt, D.O.Mount Pleasant, WI1558687749
  5. Emily Abeyta, MDWaukesha, WI1386905107
  6. Jeanette Abraham, MDWeston, WI1205895810
  7. Sarada Abraham, M.D.Oconomowoc, WI1962851972
  8. Kirsten Abramson, MDMadison, WI1417909979
  9. Alexandra Adams, MD PHDMadison, WI1184689291
  10. David AdamsMadison, WI1992986897

Common questions

What is Lesley J. Kieffer, DO's NPI number?

Lesley J. Kieffer, DO's National Provider Identifier (NPI) is 1053638916, issued on Apr 30, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Lesley J. Kieffer, DO located?

The NPPES record lists a practice address at 1800 Lawrence Dr, De Pere, WI, 54115. Phone: (920) 983-3220. Providers update this record themselves, so call before visiting.

How can I verify Lesley J. Kieffer, DO's license?

NPPES lists Wisconsin license number 56637-21, 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 Lesley J. Kieffer, DO prescribe under Medicare Part D?

In 2024, Lesley J. Kieffer, DO had 6,731 Medicare Part D claims for 540 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.