NPPES file of Aug 9, 2026

Keirsen Muffler, MA, CCC-A

Audiologist-Hearing Aid Fitter · Milwaukee, WI

Keirsen Muffler, MA, CCC-A is an audiologist-hearing aid fitter with a practice address in Milwaukee, Wisconsin, and NPI 1114139409, issued on May 7, 2007. Check the license (Wisconsin 283-156, 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
1114139409
Name
Keirsen Muffler
Credential
MA, CCC-A
Primary taxonomy
Audiologist-Hearing Aid Fitter 237600000X
License number
283-156 WI
Self-reported in NPPES; status is on the state search
Practice location
2315 N Lake Dr, Milwaukee, WI 53211
Phone
(414) 271-4141
Enumerated
May 7, 2007
Record last updated
Sep 11, 2025
Fax
(414) 271-4343
Medicaid ID
4113000 WI
Medicare enrollment
Enrolled (PECOS I20240228003439); 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 audiologist-hearing aid fitter records → All 34 in Wisconsin → Look up another NPI →

Also registered at 2315 N Lake Dr

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

  1. Janice BeitzingerRegistered Nurse1629148283
  2. Jerold Brenowitz, MDThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1639144595
  3. Harry Easom, M.D.Specialist1295876068
  4. Kevin EndCardiovascular Invasive Specialist/Technologist1649348400
  5. Mary HeckelRegistered Nurse1871663450
  6. Paul Herzfeld, O.D.Optometrist1417086901

Verify Keirsen Muffler 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 283-156    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. Columbia St Marys Hospital Milwaukee IncMilwaukee, WI

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

Keirsen Muffler among 34 audiologist-hearing aid fitter records in Wisconsin

Keirsen Muffler, MA, CCC-A is one of 34 audiologist-hearing aid fitter records with a practice address in Wisconsin. 18% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 41% of them.

  • NPI issued2007 · 41% of these records are older, 44% newer
  • In a Medicare fileYes · 18% of these records are
  • In the CMS Doctors and Clinicians fileYes · 21% of these records are
  • Record last updated2025 · 68% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 237600000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Audiologist-Hearing Aid Fitter providers in Wisconsin

There are 34 audiologist-hearing aid fitter records in Wisconsin.

All 34 in Wisconsin → Every provider in Milwaukee → Audiologist-Hearing Aid Fitter nationwide →

The 8 audiologist-hearing aid fitter records with the nearest ZIP codes

  1. Donna Mullen, M.S., CCC-AMilwaukee, WI 532111558557504
  2. Jody ColeMilwaukee, WI 532171720290562
  3. Joanne Colombo Hughes, MA AUDIOLOGYGreenfield, WI 532201104369180
  4. Erin Amiot, AUDGreenfield, WI 532211730336074
  5. Kimberly Knudsen, AU.D.Whitewater, WI 531901619990769
  6. Meredy Hase, AU.D., CCC-AWaukesha, WI 531861053402941
  7. Karen Malovrh, M.S.Mequon, WI 530921104081058
  8. Megan Schrimpf, M.S. CCC-A (AUDIOLOGMequon, WI 530921023273968

Common questions

What is Keirsen Muffler, MA, CCC-A's NPI number?

Keirsen Muffler, MA, CCC-A's National Provider Identifier (NPI) is 1114139409, issued on May 7, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Keirsen Muffler, MA, CCC-A located?

The NPPES record lists a practice address at 2315 N Lake Dr, Milwaukee, WI, 53211. Phone: (414) 271-4141. Providers update this record themselves, so call before visiting.

How can I verify Keirsen Muffler, MA, CCC-A's license?

NPPES lists Wisconsin license number 283-156, 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.