John Tomashek, M.D.
Vascular & Interventional Radiology Physician · Mequon, WI
John Tomashek, M.D. is a vascular & interventional radiology physician with a practice address in Mequon, Wisconsin, and NPI 1013999564, issued on Nov 18, 2005. Check the license (Wisconsin 44063, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- John Tomashek
- Credential
- M.D.
- Primary taxonomy
- Vascular & Interventional Radiology Physician 2085R0204X
- License number
- 44063 WI
Self-reported in NPPES; status is on the state search - Practice location
- 10945 N Port Washington RD Ste 201, Mequon, WI 53092
- Phone
- (262) 292-3151
- Enumerated
- Nov 18, 2005
- Record last updated
- Sep 11, 2024
- Medicare enrollment
- Enrolled (PECOS I20050609000393); accepts Medicare assignment
- Medical or professional school
- University Of Wisconsin School Of Medicine, 1996
- Entity
- Type 1 · individual
8 nearest vascular & interventional radiology physician records → All 114 in Wisconsin → Look up another NPI →
Also registered at 10945 N Port Washington RD Ste 201
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Bradley Abramson, D.O.Body Imaging Physician1477756484
- James Aceto, M.D.Diagnostic Radiology Physician1609858158
- James Beres, M.D.Vascular & Interventional Radiology Physician1265414809
- Debra Berridge, M.D.Diagnostic Radiology Physician1194707968
- Brandon Bodager, M.D.Diagnostic Radiology Physician1811263304
- Joshua Bonis, MDDiagnostic Radiology Physician1225478159
Verify John Tomashek in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 44063Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
84% fewer Medicare Part D claims than the average vascular & interventional radiology physician in 2024
12 Medicare Part D claims for 11 beneficiaries, against an average of 75 among the 1,444 providers of this specialty who prescribed in Part D.
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.
The practice group's MIPS final score for 2023 (Medicare payment program): 79.7 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $509.64
3 payments; by number, the most common kind was food and beverage; the largest payer was Inari Medical, Inc. The 3,457 providers of this specialty with any payment received $7,206.73 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
- Premier Radiology Wisconsin LLCFranklin, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Tomashek among 114 vascular & interventional radiology physician records in Wisconsin
John Tomashek, M.D. is one of 114 vascular & interventional radiology physician records with a practice address in Wisconsin. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 90% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 81% of these records are
- Graduated1996 · median 2009 among the 92 with a school on file
- Record last updated2024 · 33% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0204X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Vascular & Interventional Radiology Physician providers in Wisconsin
There are 114 vascular & interventional radiology physician records in Wisconsin.
All 114 in Wisconsin → Every provider in Mequon → Vascular & Interventional Radiology Physician nationwide →
The 8 vascular & interventional radiology physician records with the nearest ZIP codes
- James Beres, M.D.Mequon, WI 530921265414809
- Emil Hurst, MDMequon, WI 530921891717716
- Allan Lipkowitz, MDMequon, WI 530921770531394
- Robert Lyon, M.D.Mequon, WI 530921457335614
- Paul Minor, MDMequon, WI 530921285655084
- Shirish Patel, MDMequon, WI 530921538179783
- Joseph Zechlinski, M.D.Mequon, WI 530921447575402
- Casey Melcher, M.D.Sheboygan, WI 530811689014417
Common questions
What is John Tomashek, M.D.'s NPI number?
John Tomashek, M.D.'s National Provider Identifier (NPI) is 1013999564, issued on Nov 18, 2005. An NPI identifies a provider in billing; it is not a license.
Where is John Tomashek, M.D. located?
The NPPES record lists a practice address at 10945 N Port Washington RD Ste 201, Mequon, WI, 53092. Phone: (262) 292-3151. Providers update this record themselves, so call before visiting.
How can I verify John Tomashek, M.D.'s license?
NPPES lists Wisconsin license number 44063, 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 John Tomashek, M.D. prescribe under Medicare Part D?
In 2024, John Tomashek, M.D. had 12 Medicare Part D claims for 11 beneficiaries; the average among vascular & interventional radiology physician prescribers was 75. Part D covers Medicare prescriptions only.
What is John Tomashek, M.D.'s MIPS final score?
The 2023 MIPS final score is 79.7 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.