NPPES file of Aug 9, 2026

Alyssa Kathryn Steimle, MD

Internal Medicine Physician · Madison, WI

Alyssa Kathryn Steimle, MD is an internal medicine physician with a practice address in Madison, Wisconsin, and NPI 1891555231, issued on Mar 21, 2024. Check the license (Wisconsin 86788-20, 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 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1891555231
Name
Alyssa Kathryn Steimle
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
86788-20 WI
Self-reported in NPPES; status is on the state search
Practice location
UW Hospitals & Clinics 600 Highland Ave, Madison, WI 53792
Phone
(608) 263-6400
Enumerated
Mar 21, 2024
Record last updated
Jan 14, 2026
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at UW Hospitals & Clinics 600 Highland Ave

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

  1. Ibrahim AbdallaDiagnostic Radiology Physician1467266809
  2. Jaeger Ackerman, MDPsychiatry Physician1578192589
  3. Luis Alamo IrizarryPlastic and Reconstructive Surgery Physician1235639410
  4. Obioma Amajoyi, M.D.Orthopaedic Surgery Physician1447516018
  5. Ryan Anderson, MDPsychiatry Physician1427801430
  6. Carlos Arreola Aldape, MDNeurology Physician1427733039

Verify Alyssa Kathryn Steimle in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 86788-20
    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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99% fewer Medicare Part D claims than the average internal medicine physician in 2024

38 Medicare Part D claims for 17 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.

  1. Alyssa Steimle38
  2. Specialty average3,176

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.

Alyssa Kathryn Steimle among 2,078 internal medicine physician records in Wisconsin

Alyssa Kathryn Steimle, MD is one of 2,078 internal medicine physician records with a practice address in Wisconsin. 70% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2024, is newer than 94% of them.

  • NPI issued2024 · 94% of these records are older, 4% newer
  • In a Medicare fileYes · 70% of these records are
  • In the CMS Doctors and Clinicians fileNo · 53% of these records are
  • Record last updated2026 · 55% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

417 internal medicine physician records list a practice address in Madison

They are 417 of the 15,014 NPPES records with a practice address in Madison, and 2,078 internal medicine physician records in Wisconsin.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Sabina Agrawal, D.O.Madison, WI 537921659336089
  2. Madelyn Alvarez, MDMadison, WI 537921063831717
  3. Will Bringgold, MD,MSMadison, WI 537921881048940
  4. Kenneth Coggins, M.D.Madison, WI 537921124415021
  5. Thomas HolobynMadison, WI 537921891114542
  6. Peter Kleinschmidt, M.D.Madison, WI 537921295153583
  7. Kristina Little, M.D.Madison, WI 537921558724914
  8. David Meyers, MDMadison, WI 537921245208271

Common questions

What is Alyssa Kathryn Steimle, MD's NPI number?

Alyssa Kathryn Steimle, MD's National Provider Identifier (NPI) is 1891555231, issued on Mar 21, 2024. An NPI identifies a provider in billing; it is not a license.

Where is Alyssa Kathryn Steimle, MD located?

The NPPES record lists a practice address at UW Hospitals & Clinics 600 Highland Ave, Madison, WI, 53792. Phone: (608) 263-6400. Providers update this record themselves, so call before visiting.

How can I verify Alyssa Kathryn Steimle, MD's license?

NPPES lists Wisconsin license number 86788-20, 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.

How much does Alyssa Kathryn Steimle, MD prescribe under Medicare Part D?

In 2024, Alyssa Kathryn Steimle, MD had 38 Medicare Part D claims for 17 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.