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Family Practice

Thomas W. Hahn, MD

Works at hospitals in Madison, WI · Wisconsin

Summary

Thomas W. Hahn, MD (Family Practice) is listed by Medicare at 2 hospitals in Madison, WI. NPI 1912290594. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Thomas W. Hahn, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Family PracticePrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
15Years since medical school (graduated 2011)
MaleGender (as listed)
University of Wisconsin Medical Foundation IncGroup practice (+1 more)

Quick answers

Which hospitals does Thomas W. Hahn work at?
Medicare's official clinician data lists Thomas W. Hahn at 2 hospitals: SSM Health St Mary's Hospital - Madison and University of WI Hospitals & Clinics Authority. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Thomas W. Hahn see patients?
Medicare's clinician data lists 9 practice locations, including Verona, WI, Monona, WI and Belleville, WI. Call before your visit to confirm the address.
What is Thomas W. Hahn's specialty?
Medicare lists Family Practice as the primary specialty.
Does Thomas W. Hahn accept Medicare assignment?
Yes. Medicare's clinician data says Thomas W. Hahn accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
Does Thomas W. Hahn offer telehealth?
Medicare's clinician data says Thomas W. Hahn offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Thomas W. Hahn?
(608) 222-8779, as listed in official Medicare / NPI Registry data.
What is Thomas W. Hahn's NPI number?
1912290594. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Thomas W. Hahn works

Medicare's Facility Affiliation Data lists Thomas W. Hahn at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Thomas W. Hahn is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 9; the Medicare profile lists all.

Group practices

Medicare enrollment lists Thomas W. Hahn as a member of these groups (CMS data updated 2026-10-02).

  • University of Wisconsin Medical Foundation Inc2,553 clinicians in the group
  • Access Community Health Centers Inc68 clinicians in the group

Specialties

Find other Family Practice doctors in Wisconsin →

Other family doctors in Verona

Clinicians with the same Medicare primary specialty in Verona, WI — not a recommendation.

All family doctors in Verona →

Clinician information

CredentialMD
Graduation year2011
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1912290594
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians