NPPES file of Aug 9, 2026

Brian Porter, PA-C

Physician Assistant · Madison, WI

Brian Porter, PA-C is a physician assistant with a practice address in Madison, Wisconsin, and NPI 1891878823, issued on Oct 23, 2006. Check the license (Wisconsin 2025-023, 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, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1891878823
Name
Brian Porter
Credential
PA-C
Primary taxonomy
Physician Assistant 363A00000X
License number
2025-023 WI
Self-reported in NPPES; status is on the state search
Practice location
1821 S Stoughton RD, Madison, WI 53716
Phone
(608) 260-6000
Enumerated
Oct 23, 2006
Record last updated
Nov 12, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(608) 260-6161
Medicaid ID
1891878823 WI
Medicare enrollment
Enrolled (PECOS I20070202000205); 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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Also registered at 1821 S Stoughton RD

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

  1. Robert Alt, MDInternal Medicine Physician1578500872
  2. Darcey Amundson, PA-CPhysician Assistant1588691398
  3. Richard Armstrong, MDInternal Medicine Physician1689774523
  4. Wendy Arrington, O.D.Optometrist1750394334
  5. Bhawani Ballamudi, M.D.Psychiatry Physician1831148691
  6. Zachary Barber, PTPhysical Therapist1609054212

Verify Brian Porter 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 2025-023
    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.

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72% fewer Medicare Part D claims than the average physician assistant in 2024

232 Medicare Part D claims for 187 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims.

  1. Brian Porter232
  2. Specialty average830

Most prescribed

  1. Cephalexin34 claims
  2. Prednisone26 claims
  3. Doxycycline Hyclate25 claims
  4. Cefdinir24 claims
  5. Amoxicillin-Clavulanate Potass13 claims
  6. Triamcinolone Acetonide12 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.

Bills Medicare through one group practice

  1. Dean Health Systems IncMadison, WI

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

Brian Porter among 3,475 physician assistant records in Wisconsin

Brian Porter, PA-C is one of 3,475 physician assistant records with a practice address in Wisconsin. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 4% of them.

  • NPI issued2006 · 4% of these records are older, 76% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 72% of these records are
  • Graduated2006 · median 2016 among the 2,491 with a school on file
  • Record last updated2020 · 38% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

396 physician assistant records list a practice address in Madison

They are 396 of the 15,014 NPPES records with a practice address in Madison, and 3,475 physician assistant records in Wisconsin.

The 8 physician assistant records with the nearest ZIP codes

  1. Darcey Amundson, PA-CMadison, WI 537161588691398
  2. Catherine Benson, PA-CMadison, WI 537161134186364
  3. Malcolm Crennell, PA-CMadison, WI 537161225095987
  4. Penny Derringer, PA-CMadison, WI 537161225086408
  5. Craig Kilroy-Sikkema, PA-CMadison, WI 537161629036892
  6. Kevin Kubly, PA-CMadison, WI 537161477523884
  7. Paul Sabel, PA-CMadison, WI 537161780618116
  8. Jennifer Sauer, PA-CMadison, WI 537161124076609

Common questions

What is Brian Porter, PA-C's NPI number?

Brian Porter, PA-C's National Provider Identifier (NPI) is 1891878823, issued on Oct 23, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Brian Porter, PA-C located?

The NPPES record lists a practice address at 1821 S Stoughton RD, Madison, WI, 53716. Phone: (608) 260-6000. Providers update this record themselves, so call before visiting.

How can I verify Brian Porter, PA-C's license?

NPPES lists Wisconsin license number 2025-023, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.

How much does Brian Porter, PA-C prescribe under Medicare Part D?

In 2024, Brian Porter, PA-C had 232 Medicare Part D claims for 187 beneficiaries; the average among physician assistant prescribers was 830. 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.