Marie K. Thomas, M.D.
Colon & Rectal Surgery Physician · Madison, WI
Marie K. Thomas, M.D. is a colon & rectal surgery physician with a practice address in Madison, Wisconsin, and NPI 1720024920, issued on Jun 22, 2006. Check the license (Wisconsin 51099-020, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Marie K. Thomas
- Credential
- M.D.
- Primary taxonomy
- Colon & Rectal Surgery Physician 208C00000X
- License number
- 51099-020 WI
Self-reported in NPPES; status is on the state search - Practice location
- 700 S Park St Ste A, Madison, WI 53715
- Phone
- (608) 260-2900
- Enumerated
- Jun 22, 2006
- Record last updated
- Dec 13, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (608) 260-2975
- Medicaid ID
- 1720024920 WI
- Medicare enrollment
- Enrolled (PECOS I20140908002575); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest colon & rectal surgery physician records → All 31 in Wisconsin → Look up another NPI →
Also registered at 700 S Park St Ste A
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Jaclyn Boardman, RDRegistered Dietitian1053760553
- Vanesa Botsford, MDNeurology Physician1497288500
Verify Marie K. Thomas in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 51099-020Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
5% fewer Medicare Part D claims than the average colon & rectal surgery physician in 2024
182 Medicare Part D claims for 66 beneficiaries, against an average of 192 among the 1,836 providers of this specialty who prescribed in Part D.
Most prescribed
- Neomycin Sulfate42 claims
- Metronidazole40 claims
- Ondansetron Hcl32 claims
- Gavilyte-C14 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: $61.29
1 payment: travel and lodging; the largest payer was Baxter Healthcare. The 1,524 providers of this specialty with any payment received $3,468.16 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
- Dean Health Systems IncMadison, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marie K. Thomas among 31 colon & rectal surgery physician records in Wisconsin
Marie K. Thomas, M.D. is one of 31 colon & rectal surgery physician records with a practice address in Wisconsin. 94% 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 0% of them.
- NPI issued2006 · 0% of these records are older, 68% newer
- In a Medicare fileYes · 94% of these records are
- In the CMS Doctors and Clinicians fileYes · 87% of these records are
- Graduated2006 · median 2006 among the 27 with a school on file
- Record last updated2020 · 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 208C00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Colon & Rectal Surgery Physician providers in Wisconsin
There are 31 colon & rectal surgery physician records in Wisconsin.
All 31 in Wisconsin → Every provider in Madison → Colon & Rectal Surgery Physician nationwide →
The 8 colon & rectal surgery physician records with the nearest ZIP codes
- Ray King, M.D., PH.DMadison, WI 537151336460666
- Erin Lange, M.D.Madison, WI 537151326084526
- Julia Berian, M.D.Madison, WI 537051740576339
- Ana De Roo, MDMadison, WI 537051861870255
- Dana Hayden, M.D.Madison, WI 537051114173192
- Elise Lawson, M.D.Madison, WI 537921972769206
- Shahrose Rahman, MDMadison, WI 537921669931531
- Cristina Sanger, M.D.Madison, WI 537921851617617
Common questions
What is Marie K. Thomas, M.D.'s NPI number?
Marie K. Thomas, M.D.'s National Provider Identifier (NPI) is 1720024920, issued on Jun 22, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Marie K. Thomas, M.D. located?
The NPPES record lists a practice address at 700 S Park St Ste A, Madison, WI, 53715. Phone: (608) 260-2900. Providers update this record themselves, so call before visiting.
How can I verify Marie K. Thomas, M.D.'s license?
NPPES lists Wisconsin license number 51099-020, 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 Marie K. Thomas, M.D. prescribe under Medicare Part D?
In 2024, Marie K. Thomas, M.D. had 182 Medicare Part D claims for 66 beneficiaries; the average among colon & rectal surgery physician prescribers was 192. 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.