NPPES file of Aug 9, 2026

Courtney Ann Lemieux, MD

Obstetrics & Gynecology Physician · Waukesha, WI

Courtney Ann Lemieux, MD is an obstetrics & gynecology physician with a practice address in Waukesha, Wisconsin, and NPI 1992124895, issued on Apr 8, 2014. Check the license (Wisconsin 69182-20, 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
1992124895
Name
Courtney Ann Lemieux
Credential
MD
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License numbers
69182-20 WI
R3541 KY
Self-reported in NPPES; status is on the state search
Practice location
1111 Delafield Street, Waukesha, WI 53188
Phone
(262) 544-4411
Enumerated
Apr 8, 2014
Record last updated
Jun 6, 2018 (not updated in 8 years: call before relying on the address or phone)
Fax
(262) 650-3856
Medicaid ID
7100361050 KY
Medicare enrollment
Enrolled (PECOS I20180712000199); accepts Medicare assignment
Medical or professional school
University Of Wisconsin School Of Medicine, 2014
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 1111 Delafield Street

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

  1. Claire Benishek, PACPhysician Assistant1629332101
  2. Kevin Connor, D.D.S., M.D.Oral and Maxillofacial Surgery (Dentist)1174733588
  3. Claire Fitzgerald, NPNurse Practitioner1992107031
  4. Sarah Hansen, MDPediatric Adolescent Medicine Physician1619918992
  5. Rebecca La Rock, PACPhysician Assistant1245609742
  6. Sanjay Singh, M.D.Interventional Cardiology Physician1922072248

Verify Courtney Ann Lemieux in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 69182-20
    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

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20% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

132 Medicare Part D claims for 37 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.

  1. Courtney Lemieux132
  2. Specialty average165

Most prescribed

  1. Junel Fe20 claims
  2. Alendronate Sodium13 claims
  3. Progesterone13 claims
  4. Estradiol12 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. Moreland OB-Gyn Associates S CWaukesha, WI

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

Courtney Ann Lemieux among 796 obstetrics & gynecology physician records in Wisconsin

Courtney Ann Lemieux, 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 2014, is newer than 76% of them.

  • NPI issued2014 · 76% of these records are older, 21% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated2014 · median 2007 among the 478 with a school on file
  • Record last updated2018 · 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).

29 obstetrics & gynecology physician records list a practice address in Waukesha

They are 29 of the 2,814 NPPES records with a practice address in Waukesha, and 796 obstetrics & gynecology physician records in Wisconsin.

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

  1. Dana Akiya, MDWaukesha, WI 531881407915796
  2. Beth Angsten, M.D.Waukesha, WI 531881174596217
  3. Joi Davis, DOWaukesha, WI 531881932172988
  4. Lorree Dyoco, MDWaukesha, WI 531881497728448
  5. Laura Epperson, MDWaukesha, WI 531881225028715
  6. Darin Gregory, MDWaukesha, WI 531881023189198
  7. Jessica Herzberg, MDWaukesha, WI 531881750570180
  8. Sarah Janz, M.D.Waukesha, WI 531881336367168

Common questions

What is Courtney Ann Lemieux, MD's NPI number?

Courtney Ann Lemieux, MD's National Provider Identifier (NPI) is 1992124895, issued on Apr 8, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Courtney Ann Lemieux, MD located?

The NPPES record lists a practice address at 1111 Delafield Street, Waukesha, WI, 53188. Phone: (262) 544-4411. Providers update this record themselves, so call before visiting.

How can I verify Courtney Ann Lemieux, MD's license?

NPPES lists Wisconsin license number 69182-20, 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 Courtney Ann Lemieux, MD prescribe under Medicare Part D?

In 2024, Courtney Ann Lemieux, MD had 132 Medicare Part D claims for 37 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.