NPPES file of Aug 9, 2026

Kirk John Brown, M.D.

Hospitalist Physician · Grafton, WI

Kirk John Brown, M.D. is a hospitalist physician with a practice address in Grafton, Wisconsin, and NPI 1861770729, issued on Jul 26, 2011. Check the license (Wisconsin 62418, as entered in NPPES) on the Wisconsin Medical Examining Board; 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
1861770729
Name
Kirk John Brown
Credential
M.D.
Primary taxonomy
Hospitalist Physician 208M00000X
License number
62418 WI
Self-reported in NPPES; status is on the state search
Practice location
975 Port Washington RD, Grafton, WI 53024
Phone
(262) 329-3450
Enumerated
Jul 26, 2011
Record last updated
Oct 23, 2023
Fax
(262) 329-1001
Medicaid ID
100039004 WI
Medicare enrollment
Enrolled (PECOS I20140725001058); 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 975 Port Washington RD

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

  1. Hamid Afsari, D.O.Hospitalist Physician1053672048
  2. Muhammed Al-Fawakhiri, MDInternal Medicine Physician1942276613
  3. Beverly Altman, LMTMassage Therapist1447888789
  4. Claudia Altmann, MDInfectious Disease Physician1386691756
  5. Peter Andrew, AAAnesthesiologist Assistant1821704545
  6. Patrick AndrewsPhysical Therapist1689481962

Verify Kirk John Brown in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 62418
    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
Open 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.Grafton, WI

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

Kirk John Brown among 894 hospitalist physician records in Wisconsin

Kirk John Brown, M.D. is one of 894 hospitalist physician records with a practice address in Wisconsin. 91% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 38% of them.

  • NPI issued2011 · 38% of these records are older, 58% newer
  • In a Medicare fileYes · 91% of these records are
  • In the CMS Doctors and Clinicians fileYes · 86% of these records are
  • Graduated2011 · median 2011 among the 768 with a school on file
  • Record last updated2023 · 29% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

14 hospitalist physician records list a practice address in Grafton

They are 14 of the 459 NPPES records with a practice address in Grafton, and 894 hospitalist physician records in Wisconsin.

The 8 hospitalist physician records with the nearest ZIP codes

  1. Hamid Afsari, D.O.Grafton, WI 530241053672048
  2. Avigdor Asner, DOGrafton, WI 530241962061242
  3. Anna De La Pena, M.DGrafton, WI 530241659650471
  4. Mitchell Elgin, D.O.Grafton, WI 530241528421369
  5. Ran Guan, M.D., M.SGrafton, WI 530241275774192
  6. Rinya Hanna, MDGrafton, WI 530241932660651
  7. Hany Marcos, M.D.Grafton, WI 530241396093662
  8. Zach McCallips, MDGrafton, WI 530241811575558

Common questions

What is Kirk John Brown, M.D.'s NPI number?

Kirk John Brown, M.D.'s National Provider Identifier (NPI) is 1861770729, issued on Jul 26, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Kirk John Brown, M.D. located?

The NPPES record lists a practice address at 975 Port Washington RD, Grafton, WI, 53024. Phone: (262) 329-3450. Providers update this record themselves, so call before visiting.

How can I verify Kirk John Brown, M.D.'s license?

NPPES lists Wisconsin license number 62418, as entered by the provider. Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

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.