NPPES file of Aug 9, 2026

Mary K. Duffy, AA

Anesthesiologist Assistant · Summit, WI

Mary K. Duffy, AA is an anesthesiologist assistant with a practice address in Summit, Wisconsin, and NPI 1619625233, issued on Mar 14, 2022. Check the license (Wisconsin 205-017, 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, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1619625233
Name
Mary K. Duffy
Credential
AA
Primary taxonomy
Anesthesiologist Assistant 367H00000X
License number
205-017 WI
Self-reported in NPPES; status is on the state search
Practice location
36500 Aurora Dr, Summit, WI 53066
Phone
(262) 434-1000
Enumerated
Mar 14, 2022
Record last updated
Apr 14, 2022
Medicare enrollment
Enrolled (PECOS I20220322001704); accepts Medicare assignment
Medical or professional school
Medical College Of Wisconsin, 2021
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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8 nearest anesthesiologist assistant records → All 264 in Wisconsin → Look up another NPI →

Also registered at 36500 Aurora Dr

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

  1. Jihan Akhtar Bhikhapurwala, MDOphthalmology Physician1679894901
  2. Tulay Aksoy, MDInternal Medicine Physician1245485697
  3. Inna Allen, M.D.Family Medicine Physician1649581315
  4. Benjamin Andrew, M.D.Surgery Physician1083000863
  5. Steven Andrews, MDEmergency Medicine Physician1649224767
  6. Karina Arkush, MDNeurology Physician1659690741

Verify Mary K. Duffy 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 205-017    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.

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Bills Medicare through one group practice

  1. Aurora Medical Group, Inc.Summit, WI

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

Mary K. Duffy among 264 anesthesiologist assistant records in Wisconsin

Mary K. Duffy, AA is one of 264 anesthesiologist assistant records with a practice address in Wisconsin. 95% 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 64% of them.

  • NPI issued2022 · 64% of these records are older, 27% newer
  • In a Medicare fileYes · 95% of these records are
  • In the CMS Doctors and Clinicians fileYes · 93% of these records are
  • Graduated2021 · median 2020 among the 246 with a school on file
  • Record last updated2022 · 32% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 367H00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

8 anesthesiologist assistant records list a practice address in Summit

They are 8 of the 250 NPPES records with a practice address in Summit, and 264 anesthesiologist assistant records in Wisconsin.

All 264 in Wisconsin → Every provider in Summit → Anesthesiologist Assistant nationwide →

The 8 anesthesiologist assistant records with the nearest ZIP codes

  1. Michael Douglass, AASummit, WI 530661154070738
  2. Mikayla Ehlert, AASummit, WI 530661700591344
  3. Emily Hogoboom, AASummit, WI 530661679384101
  4. Matthew Lyles, AASummit, WI 530661730634817
  5. Anthony Sawall, CAASummit, WI 530661649749417
  6. Victoria Sawall, AASummit, WI 530661962162610
  7. Lea Van Heule, CAASummit, WI 530661023658549
  8. Kyle GohamMenomonee Falls, WI 530511942638325

Common questions

What is Mary K. Duffy, AA's NPI number?

Mary K. Duffy, AA's National Provider Identifier (NPI) is 1619625233, issued on Mar 14, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Mary K. Duffy, AA located?

The NPPES record lists a practice address at 36500 Aurora Dr, Summit, WI, 53066. Phone: (262) 434-1000. Providers update this record themselves, so call before visiting.

How can I verify Mary K. Duffy, AA's license?

NPPES lists Wisconsin license number 205-017, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.