NPPES file of Aug 9, 2026

Clare McDonald, DO

Family Medicine Physician · Mequon, WI

Clare McDonald, DO is a family medicine physician with a practice address in Mequon, Wisconsin, and NPI 1821748195, issued on Mar 28, 2022. Check the license (Wisconsin 81905-21, 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
1821748195
Name
Clare McDonald
Credential
DO
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
81905-21 WI
Self-reported in NPPES; status is on the state search
Practice location
11430 N Port Washington RD, Mequon, WI 53092
Phone
(262) 518-1900
Enumerated
Mar 28, 2022
Record last updated
Sep 19, 2025
Medicare enrollment
Enrolled (PECOS I20251002002459); accepts Medicare assignment
Medical or professional school
Lincoln Mem Univ, Debusk Col Of Osteopathic Med, 2022
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 11430 N Port Washington RD

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

  1. Michael Ainbinder, MDFamily Medicine Physician1710565395
  2. Abigail Beachy, PHARMDPharmacist1518895572
  3. Maria Beg, MDInternal Medicine Physician1992974703
  4. April Belk, PT, DPTPhysical Therapist1013796481
  5. Andrea Bennett, P.T.Physical Therapist1235160508
  6. Teresa Birmingham, DPTPhysical Therapist1255266995

Verify Clare McDonald in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 81905-21
    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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98% fewer Medicare Part D claims than the average family medicine physician in 2024

78 Medicare Part D claims for 34 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.

  1. Clare McDonald78
  2. Specialty average3,544

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. Froedtert Andthe Medical College OF Wisconsin Community Physicians IncGermantown, WI

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

Clare McDonald among 3,765 family medicine physician records in Wisconsin

Clare McDonald, DO 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 2022, is newer than 94% of them.

  • NPI issued2022 · 94% of these records are older, 4% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated2022 · median 2007 among the 2,347 with a school on file
  • Record last updated2025 · 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).

26 family medicine physician records list a practice address in Mequon

They are 26 of the 1,048 NPPES records with a practice address in Mequon, and 3,765 family medicine physician records in Wisconsin.

The 8 family medicine physician records with the nearest ZIP codes

  1. Nicola Charlton, M.D.Mequon, WI 530921326050436
  2. Robert Frank, MDMequon, WI 530921659303899
  3. Michael Gerard, MDMequon, WI 530921598742652
  4. Richard Lewis, M.D.Mequon, WI 530921306819305
  5. Gary Lewis, MDThiensville, WI 530921194762765
  6. Paul Mankus, MDMequon, WI 530921639131998
  7. Anne Mattson, MDMequon, WI 530921598799496
  8. Larisa Mazur, MDThiensville, WI 530921861565202

Common questions

What is Clare McDonald, DO's NPI number?

Clare McDonald, DO's National Provider Identifier (NPI) is 1821748195, issued on Mar 28, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Clare McDonald, DO located?

The NPPES record lists a practice address at 11430 N Port Washington RD, Mequon, WI, 53092. Phone: (262) 518-1900. Providers update this record themselves, so call before visiting.

How can I verify Clare McDonald, DO's license?

NPPES lists Wisconsin license number 81905-21, 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 Clare McDonald, DO prescribe under Medicare Part D?

In 2024, Clare McDonald, DO had 78 Medicare Part D claims for 34 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.