NPPES file of Aug 9, 2026

Tomaz Mesar, M.D.

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Madison, WI

Tomaz Mesar, M.D. is a thoracic surgery (cardiothoracic vascular surgery) physician with a practice address in Madison, Wisconsin, and NPI 1114313871, issued on Apr 9, 2015. Check the license (Wisconsin 87253-20, 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
1114313871
Name
Tomaz Mesar
Credential
M.D.
Primary taxonomy
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician 208G00000X
License numbers
87253-20 WI
MD482750 PA
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
Apr 9, 2015
Record last updated
May 11, 2026
Fax
(608) 260-2976
Medicare enrollment
Enrolled (PECOS I20250728002101); accepts Medicare assignment
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 700 S Park St Ste A

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

  1. Kwadwo Achampong, M.D.Pain Medicine Physician1255699450
  2. Alexei Agapitov, M.D.Cardiovascular Disease Physician1841201514
  3. James Ballard, M.D.Interventional Cardiology Physician1508209354
  4. Franklin Bendewald, M.D.Surgery Physician1275505646
  5. Jaclyn Boardman, RDRegistered Dietitian1053760553
  6. Vanesa Botsford, MDNeurology Physician1497288500

Verify Tomaz Mesar in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 87253-20
    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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Industry payments in 2024: $1,910.70

17 payments; by number, the most common kind was travel and lodging; the largest payer was Medtronic, Inc. The 4,047 providers of this specialty with any payment received $7,828.84 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Tomaz Mesar$1,910.70
  2. Specialty average$7,828.84

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 2 group practices

  1. Dean Health Systems IncMadison, WI
  2. University OF Pittsburgh PhysiciansPittsburgh, PA

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

Tomaz Mesar among 115 thoracic surgery (cardiothoracic vascular surgery) physician records in Wisconsin

Tomaz Mesar, M.D. is one of 115 thoracic surgery (cardiothoracic vascular surgery) physician records with a practice address in Wisconsin. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 84% of them.

  • NPI issued2015 · 84% of these records are older, 13% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileYes · 64% of these records are
  • Graduated2012 · median 1993 among the 74 with a school on file
  • Record last updated2026 · 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 208G00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician providers in Wisconsin

There are 115 thoracic surgery (cardiothoracic vascular surgery) physician records in Wisconsin.

The 8 thoracic surgery (cardiothoracic vascular surgery) physician records with the nearest ZIP codes

  1. Khosro Adib, MDMadison, WI 537151932163581
  2. Haywood Gilliam, MDMadison, WI 537151316902091
  3. Vijay Kantamneni, MDMadison, WI 537151316997406
  4. Ghulam Murtaza, M.D.Madison, WI 537151528294329
  5. Hoang Nguyen, M.D.Madison, WI 537151295742005
  6. Zahir Rashid, MDMadison, WI 537151407956865
  7. George Reiss, M.D.Madison, WI 537151164510871
  8. Patrick Vining, MDMadison, WI 537151063900249

Common questions

What is Tomaz Mesar, M.D.'s NPI number?

Tomaz Mesar, M.D.'s National Provider Identifier (NPI) is 1114313871, issued on Apr 9, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Tomaz Mesar, 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 Tomaz Mesar, M.D.'s license?

NPPES lists Wisconsin license number 87253-20, 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.

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.