Gregory Corbett Thom, M.D.
Vascular Surgery Physician · Green Bay, WI
Gregory Corbett Thom, M.D. is a vascular surgery physician with a practice address in Green Bay, Wisconsin, and NPI 1689802977, issued on Jun 25, 2009. Check the license (Wisconsin 65518-20, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Gregory Corbett Thom
- Credential
- M.D.
- Primary taxonomy
- Vascular Surgery Physician 2086S0129X
- License number
- 65518-20 WI
Self-reported in NPPES; status is on the state search - Practice location
- 2845 Greenbrier RD Ste 230, Green Bay, WI 54311
- Phone
- (920) 288-8250
- Enumerated
- Jun 25, 2009
- Record last updated
- Aug 15, 2025
- Fax
- (920) 288-8257
- Medicaid ID
- 100059317 WI
- Medicare enrollment
- Enrolled (PECOS I20160919000178); accepts Medicare assignment
- Medical or professional school
- Medical College Of Wisconsin, 2009
- Entity
- Type 1 · individual
8 nearest vascular surgery physician records → All 90 in Wisconsin → Look up another NPI →
Also registered at 2845 Greenbrier RD Ste 230
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Per Anderas, MDSurgery Physician1861437303
- Jeffrey Blink, MDSurgery Physician1376570796
- Jeffery Keller, MDSurgery Physician1902834443
- Janelle Klubertanz, RNRegistered Nurse1386970507
- Catherine Leggett, RNRegistered Nurse1245242999
- Daniel McKenna, M.D.Surgery Physician1255389755
Verify Gregory Corbett Thom in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 65518-20Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
30% fewer Medicare Part D claims than the average vascular surgery physician in 2024
141 Medicare Part D claims for 43 beneficiaries, against an average of 201 among the 3,936 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.
Most prescribed
- Cilostazol49 claims
- Atorvastatin Calcium33 claims
- Clopidogrel22 claims
- Eliquis15 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.
Industry payments in 2024: $44.25
1 payment: food and beverage; the largest payer was Cook Medical LLC. The 4,059 providers of this specialty with any payment received $6,178.00 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Baycare Aurora LLCGreen Bay, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gregory Corbett Thom among 90 vascular surgery physician records in Wisconsin
Gregory Corbett Thom, M.D. is one of 90 vascular surgery physician records with a practice address in Wisconsin. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 54% of them.
- NPI issued2009 · 54% of these records are older, 39% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated2009 · median 2006 among the 64 with a school on file
- Record last updated2025 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2086S0129X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Vascular Surgery Physician providers in Wisconsin
There are 90 vascular surgery physician records in Wisconsin.
All 90 in Wisconsin → Every provider in Green Bay → Vascular Surgery Physician nationwide →
The 8 vascular surgery physician records with the nearest ZIP codes
- William OwensGreen Bay, WI 543111386726115
- Steven Vang, D.O.Green Bay, WI 543111912385378
- Natasha Ahuja, MDGreen Bay, WI 543011689107013
- John Hutto, MDGreen Bay, WI 543011972714285
- Daniel Brown, M.D.Wausau, WI 544011972980837
- Sandra Cole, MDWausau, WI 544011447785944
- Ralph Fairchild, M.D.Wausau, WI 544011285694141
- Benjamin Herdrich, MDWausau, WI 544011306993332
Common questions
What is Gregory Corbett Thom, M.D.'s NPI number?
Gregory Corbett Thom, M.D.'s National Provider Identifier (NPI) is 1689802977, issued on Jun 25, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Gregory Corbett Thom, M.D. located?
The NPPES record lists a practice address at 2845 Greenbrier RD Ste 230, Green Bay, WI, 54311. Phone: (920) 288-8250. Providers update this record themselves, so call before visiting.
How can I verify Gregory Corbett Thom, M.D.'s license?
NPPES lists Wisconsin license number 65518-20, 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 Gregory Corbett Thom, M.D. prescribe under Medicare Part D?
In 2024, Gregory Corbett Thom, M.D. had 141 Medicare Part D claims for 43 beneficiaries; the average among vascular surgery physician prescribers was 201. 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.