NPPES file of Aug 9, 2026

Michael D. Mason, CRNA

Certified Registered Nurse Anesthetist · Germantown, WI

Michael D. Mason, CRNA is a certified registered nurse anesthetist with a practice address in Germantown, Wisconsin, and NPI 1295462901, issued on Aug 3, 2022. Check the license (Wisconsin 12074-033, 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
1295462901
Name
Michael D. Mason
Credential
CRNA
Primary taxonomy
Certified Registered Nurse Anesthetist 367500000X
License number
12074-033 WI
Self-reported in NPPES; status is on the state search
Practice location
N112W17975 Mequon RD, Germantown, WI 53022
Phone
(262) 532-7600
Enumerated
Aug 3, 2022
Record last updated
Oct 7, 2025
Medicaid ID
100210161 WI
Medicare enrollment
Enrolled (PECOS I20220817000611); 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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8 nearest certified registered nurse anesthetist records → All 1,241 in Wisconsin → Look up another NPI →

Also registered at N112W17975 Mequon RD

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

  1. Henrietta Abili, APNPNurse Practitioner1174859524
  2. Sara Adams, OTROccupational Therapist1598263386
  3. Tarek Amin, D.O.Family Medicine Physician1710322789
  4. Gina Bandholz, PTPhysical Therapist1336293448
  5. Lucas Benish, PT, DPTPhysical Therapist1942726435
  6. Bruce Boyd, MDFamily Medicine Physician1629000864

Verify Michael D. Mason 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 12074-033    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. Racine Anesthesia Services LLCOshkosh, WI

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

Michael D. Mason among 1,241 certified registered nurse anesthetist records in Wisconsin

Michael D. Mason, CRNA is one of 1,241 certified registered nurse anesthetist records with a practice address in Wisconsin. 76% 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 87% of them.

  • NPI issued2022 · 87% of these records are older, 10% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileYes · 75% of these records are
  • Graduated2022 · median 2013 among the 932 with a school on file
  • Record last updated2025 · 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 367500000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Certified Registered Nurse Anesthetist providers in Wisconsin

There are 1,241 certified registered nurse anesthetist records in Wisconsin.

All 1,241 in Wisconsin → Every provider in Germantown → Certified Registered Nurse Anesthetist nationwide →

The 8 certified registered nurse anesthetist records with the nearest ZIP codes

  1. Christina Guenveur, DNP, CRNAGrafton, WI 530241689240400
  2. Ellen Suelflow, CRNAGrafton, WI 530241891802997
  3. Tonia Whalen, CRNAGrafton, WI 530241366474249
  4. Dorothy Carl, CRNAHartford, WI 530271922017086
  5. Jennifer Delaruelle, CRNAHartford, WI 530271851605653
  6. Angela GoetschHartford, WI 530271962714311
  7. Carrie Harris, CRNAHartford, WI 530271619039344
  8. Esteban HenriquezHartford, WI 530271760101299

Common questions

What is Michael D. Mason, CRNA's NPI number?

Michael D. Mason, CRNA's National Provider Identifier (NPI) is 1295462901, issued on Aug 3, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Michael D. Mason, CRNA located?

The NPPES record lists a practice address at N112W17975 Mequon RD, Germantown, WI, 53022. Phone: (262) 532-7600. Providers update this record themselves, so call before visiting.

How can I verify Michael D. Mason, CRNA's license?

NPPES lists Wisconsin license number 12074-033, 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.