Thomas W. Hahn, MD
Family Medicine Physician · Verona, WI
Thomas W. Hahn, MD is a family medicine physician with a practice address in Verona, Wisconsin, and NPI 1912290594, issued on May 16, 2011. Check the license (Wisconsin 59833, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Thomas W. Hahn
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 59833 WI
Self-reported in NPPES; status is on the state search - Practice location
- 100 N Nine Mound RD, Verona, WI 53593
- Phone
- (608) 845-9531
- Enumerated
- May 16, 2011
- Record last updated
- Feb 1, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (608) 845-8684
- Medicare enrollment
- Enrolled (PECOS I20140527000888); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 3,765 in Wisconsin → Look up another NPI →
Also registered at 100 N Nine Mound RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Thomas W. Hahn in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 59833Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
47% fewer Medicare Part D claims than the average family medicine physician in 2024
1,864 Medicare Part D claims for 125 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 44 claims were for opioids.
Most prescribed
- Atorvastatin Calcium87 claims
- Lisinopril86 claims
- Amlodipine Besylate85 claims
- Tamsulosin Hcl80 claims
- Eliquis67 claims
- Simvastatin67 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 2 group practices
- Access Community Health Centers IncMadison, WI
- University OF Wisconsin Medical Foundation IncVerona, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Thomas W. Hahn among 3,765 family medicine physician records in Wisconsin
Thomas W. Hahn, MD is one of 3,765 family medicine physician records with a practice address in Wisconsin. 75% 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 67% of them.
- NPI issued2011 · 67% of these records are older, 31% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2011 · median 2007 among the 2,347 with a school on file
- Record last updated2021 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
23 family medicine physician records list a practice address in Verona
They are 23 of the 482 NPPES records with a practice address in Verona, and 3,765 family medicine physician records in Wisconsin.
All 3,765 in Wisconsin → Every provider in Verona → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Brian Arndt, MDVerona, WI 535931326085069
- John Beasley, MDVerona, WI 535931124089420
- Kathleen Carr, MDVerona, WI 535931649235755
- Susan Carson, MDVerona, WI 535931679533970
- Marilyn Chohaney, MDVerona, WI 535931003875642
- Joel Gordon, MDVerona, WI 535931306875711
- Sarah James, D.O.Verona, WI 535931356514160
- Magnolia Larson, DOVerona, WI 535931841459658
Common questions
What is Thomas W. Hahn, MD's NPI number?
Thomas W. Hahn, MD's National Provider Identifier (NPI) is 1912290594, issued on May 16, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Thomas W. Hahn, MD located?
The NPPES record lists a practice address at 100 N Nine Mound RD, Verona, WI, 53593. Phone: (608) 845-9531. Providers update this record themselves, so call before visiting.
How can I verify Thomas W. Hahn, MD's license?
NPPES lists Wisconsin license number 59833, 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 Thomas W. Hahn, MD prescribe under Medicare Part D?
In 2024, Thomas W. Hahn, MD had 1,864 Medicare Part D claims for 125 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.