NPPES file of Aug 9, 2026

Karen L. Meyer, MD

Obstetrics & Gynecology Physician · Fond Du Lac, WI

Karen L. Meyer, MD is an obstetrics & gynecology physician with a practice address in Fond Du Lac, Wisconsin, and NPI 1538141437, issued on Nov 16, 2005. Check the license (Wisconsin 43948, 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
1538141437
Name
Karen L. Meyer
Credential
MD
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
43948 WI
Self-reported in NPPES; status is on the state search
Practice location
420 E Division St, Fond Du Lac, WI 54935
Phone
(920) 926-8450
Enumerated
Nov 16, 2005
Record last updated
Oct 20, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicaid ID
34515000 WI
Medicare enrollment
Enrolled (PECOS I20040802001441); 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 420 E Division St

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

  1. Elizabeth Berenz, FNP-BCFamily Nurse Practitioner1619386885
  2. Melissa Berggren, PA-CPhysician Assistant1639377617
  3. Louann Biddick, NPNurse Practitioner1770566721
  4. Jennifer Bissell, MDFamily Medicine Physician1316146962
  5. Tiffany Boelk, APNPNurse Practitioner1700459690
  6. David Bowman, M.D.Cardiovascular Disease Physician1962492397

Verify Karen L. Meyer in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 43948
    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

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57% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

71 Medicare Part D claims for 33 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.

  1. Karen Meyer71
  2. Specialty average165

Most prescribed

  1. Estradiol27 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. Agnesian Healthcare IncFond Du Lac, WI

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

Karen L. Meyer among 796 obstetrics & gynecology physician records in Wisconsin

Karen L. Meyer, MD is one of 796 obstetrics & gynecology physician records with a practice address in Wisconsin. 71% 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 · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated1999 · median 2007 among the 478 with a school on file
  • Record last updated2020 · 48% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Obstetrics & Gynecology Physician providers in Wisconsin

There are 796 obstetrics & gynecology physician records in Wisconsin.

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. Christina Calvello, MDFond Du Lac, WI 549351104836394
  2. Julie Dejong, MDFond Du Lac, WI 549351174639082
  3. Jackie Luthardt, MDFond Du Lac, WI 549351679156202
  4. Stephen Massick, MDFond Du Lac, WI 549351942282298
  5. Brita McCullough, MDFond Du Lac, WI 549351346490323
  6. Barbara Peschong, MDFond Du Lac, WI 549351790767739
  7. Sara Riegert, MDFond Du Lac, WI 549351013908664
  8. Mary Schultz, MDFond Du Lac, WI 549351265414676

Common questions

What is Karen L. Meyer, MD's NPI number?

Karen L. Meyer, MD's National Provider Identifier (NPI) is 1538141437, issued on Nov 16, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Karen L. Meyer, MD located?

The NPPES record lists a practice address at 420 E Division St, Fond Du Lac, WI, 54935. Phone: (920) 926-8450. Providers update this record themselves, so call before visiting.

How can I verify Karen L. Meyer, MD's license?

NPPES lists Wisconsin license number 43948, 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 Karen L. Meyer, MD prescribe under Medicare Part D?

In 2024, Karen L. Meyer, MD had 71 Medicare Part D claims for 33 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. 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.