NPPES file of Aug 9, 2026

Thomas M. Derrig, MD

Surgery Physician · Hartland, WI

Thomas M. Derrig, MD is a surgery physician with a practice address in Hartland, Wisconsin, and NPI 1588779771, issued on Aug 20, 2006. Check the license (Wisconsin 43080, 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
1588779771
Name
Thomas M. Derrig
Credential
MD
Primary taxonomy
Surgery Physician 208600000X
License numbers
43080 WI
7805 ND
Self-reported in NPPES; status is on the state search
Practice location
600 Walnut Ridge Dr, Hartland, WI 53029
Phone
(262) 369-7040
Enumerated
Aug 20, 2006
Record last updated
Sep 25, 2023
Fax
(262) 369-7041
Medicaid ID
34071100 WI
Medicare enrollment
Enrolled (PECOS I20040821000108); accepts Medicare assignment
Medical or professional school
University Of North Dakota School Of Medicine, 1996
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 600 Walnut Ridge Dr

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

  1. Vincent Borkowski, MD, PHDInternal Medicine Physician1043849961
  2. Jessica Chapin, PHDClinical Neuropsychologist1477747103
  3. David Faust, DOFamily Medicine Physician1295840320
  4. Mary Geralts, MDInternal Medicine Physician1386759397
  5. Veena Gonuguntla, MDPediatrics Physician1598959967
  6. Christine Groth, RPH, CDMPharmacist1972792182

Verify Thomas M. Derrig in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 43080
    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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66% more Medicare Part D claims than the average surgery physician in 2024

244 Medicare Part D claims for 106 beneficiaries, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims.

  1. Thomas Derrig244
  2. Specialty average147

Most prescribed

  1. Diclofenac Sodium70 claims
  2. Gabapentin59 claims
  3. Pantoprazole Sodium38 claims
  4. Clopidogrel23 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. Aurora Medical Group, Inc.Milwaukee, WI

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

Thomas M. Derrig among 726 surgery physician records in Wisconsin

Thomas M. Derrig, MD is one of 726 surgery physician records with a practice address in Wisconsin. 72% 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 12% of them.

  • NPI issued2006 · 12% of these records are older, 52% newer
  • In a Medicare fileYes · 72% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated1996 · median 2006 among the 446 with a school on file
  • Record last updated2023 · 52% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208600000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Surgery Physician providers in Wisconsin

There are 726 surgery physician records in Wisconsin.

The 8 surgery physician records with the nearest ZIP codes

  1. Kayla ChapmanHartford, WI 530271053774414
  2. Joshua Dilday, D.O.Hartford, WI 530271033591185
  3. Bryan Jewett, M.D.Hartford, WI 530271447360029
  4. Katelyn Levene, M.D.Hartford, WI 530271770826554
  5. Allison BrownGrafton, WI 530241275953523
  6. Michael Erickson, MDGrafton, WI 530241497732408
  7. James Larson, M.D.Grafton, WI 530241164632410
  8. Gwenn Pavlovitz, M.D.Grafton, WI 530241447289566

Common questions

What is Thomas M. Derrig, MD's NPI number?

Thomas M. Derrig, MD's National Provider Identifier (NPI) is 1588779771, issued on Aug 20, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Thomas M. Derrig, MD located?

The NPPES record lists a practice address at 600 Walnut Ridge Dr, Hartland, WI, 53029. Phone: (262) 369-7040. Providers update this record themselves, so call before visiting.

How can I verify Thomas M. Derrig, MD's license?

NPPES lists Wisconsin license number 43080, 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 M. Derrig, MD prescribe under Medicare Part D?

In 2024, Thomas M. Derrig, MD had 244 Medicare Part D claims for 106 beneficiaries; the average among surgery physician prescribers was 147. 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.