Registry data as of Aug 27, 2026

Margaret Baker, PA-C

Physician Assistant · Union Grove, WI

Margaret Baker, PA-C is a physician assistant with a practice address in Union Grove, Wisconsin, and NPI 1881858157, issued on Jul 15, 2008. Check the license (Wisconsin 2300-023, as entered in NPPES) with the Wisconsin board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1881858157
Name
Margaret Baker
Credential
PA-C
Primary taxonomy
Physician Assistant 363A00000X
License number
2300-023 WI
Self-reported in NPPES; status is on the state search
Practice location
1120 Main St, Union Grove, WI 53182
Phone
(262) 878-4424
Enumerated
Jul 15, 2008
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 1120 Main St

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

  1. Mary Bienemann, MDFamily Medicine Physician1487680179
  2. Amie Koehnlein, LPCProfessional Counselor1912441569
  3. Laurie PotratzFamily Medicine Physician1265894539
  4. Lisa Simonds, M.D.Family Medicine Physician1497779375
  5. Tyler Smith, PA-CMedical Physician Assistant1295568723
  6. Amanda Strom, PAMedical Physician Assistant1477888345

Verify Margaret Baker in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Wisconsin board licenses this profession
    Search for license 2300-023
    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
Find 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.

35% fewer Medicare Part D claims than the average physician assistant in 2024

541 Medicare Part D claims for 98 beneficiaries, against an average of 832 among the 95,030 providers of this specialty who prescribed in Part D. Brand-name drugs were 3% of claims.

  1. Margaret Baker541
  2. Specialty average832

Most prescribed

  1. Sertraline Hcl98 claims
  2. Quetiapine Fumarate74 claims
  3. Buspirone Hcl63 claims
  4. Mirtazapine62 claims
  5. Divalproex Sodium44 claims
  6. Venlafaxine Hcl29 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.

One hospital or facility affiliation

  1. Bcs OF Wisconsin SCPewaukee, WI

Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

1 physician assistant records list a Union Grove practice address

They are 1 of the 87 NPPES records with a Union Grove practice address, and 3,317 physician assistant records in Wisconsin.

Other physician assistant records in Wisconsin

  1. Amber Abraham, PA-CGreen Bay, WI1598993297
  2. Roopa AchuriNeenah, WI1225531635
  3. Carleen Acker, PA-CMadison, WI1447514773
  4. Lauren Ackerman, PA-CCudahy, WI1992357982
  5. Jocelyn Acompanado, PA-CSheboygan, WI1770521486
  6. Kora Adam, PA-CBurlington, WI1952666554
  7. Stephanie Adamczyk, PAMilwaukee, WI1063007441
  8. Kristen Adamo, PANew Berlin, WI1437179520
  9. Beth Adams, PA-CMequon, WI1801237540
  10. Eric Adams, PAGreen Bay, WI1528445087

Common questions

What is Margaret Baker, PA-C's NPI number?

Margaret Baker, PA-C's National Provider Identifier (NPI) is 1881858157, issued on Jul 15, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Margaret Baker, PA-C located?

The NPPES record lists a practice address at 1120 Main St, Union Grove, WI, 53182. Phone: (262) 878-4424. Providers update this record themselves, so call before visiting.

How can I verify Margaret Baker, PA-C's license?

NPPES lists Wisconsin license number 2300-023, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.

How much does Margaret Baker, PA-C prescribe under Medicare Part D?

In 2024, Margaret Baker, PA-C had 541 Medicare Part D claims for 98 beneficiaries; the average among physician assistant prescribers was 832. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.