NPPES file of Aug 9, 2026

Mark T. Viehmann, MD

Anesthesiology Physician · Madison, IN

Mark T. Viehmann, MD is an anesthesiology physician with a practice address in Madison, Indiana, and NPI 1134140940, issued on Jul 21, 2006. Check the license (Indiana 01036844A, as entered in NPPES) on the Medical Licensing Board of Indiana; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1134140940
Name
Mark T. Viehmann
Credential
MD
Primary taxonomy
Anesthesiology Physician 207L00000X
License number
01036844A IN
Self-reported in NPPES; status is on the state search
Practice location
1373 E State Road 62, Madison, IN 47250
Phone
(812) 801-0800
Enumerated
Jul 21, 2006
Record last updated
Jul 23, 2024
Medicaid IDs
200466720 IN
710070800 KY
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 1373 E State Road 62

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

  1. Lisa Blevens, APRNNurse Practitioner1538628714
  2. John Brumfield, MDAnesthesiology Physician1952324154
  3. Alice Carlson, C.N.P.Nurse Practitioner1235160557
  4. Andrea Casey, APRNFamily Nurse Practitioner1295012227
  5. Mark Charpentier, M.D.Pediatrics Physician1720117195
  6. Molly Cissell, PA-CPhysician Assistant1932071669

Verify Mark T. Viehmann in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Licensing Board of Indiana
    Search for license 01036844A
    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 Indiana license search

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The practice group's MIPS final score for 2023 (Medicare payment program): 77.3 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.

  1. Qualityout of 100 · 30% of the final score77.8
  2. Costout of 100 · 30%64.9
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Mark T. Viehmann among 1,448 anesthesiology physician records in Indiana

Mark T. Viehmann, MD is one of 1,448 anesthesiology physician records with a practice address in Indiana. 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 2006, is newer than 15% of them.

  • NPI issued2006 · 15% of these records are older, 48% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileNo · 74% of these records are
  • Record last updated2024 · 50% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a Indiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

5 anesthesiology physician records list a practice address in Madison

They are 5 of the 316 NPPES records with a practice address in Madison, and 1,448 anesthesiology physician records in Indiana.

The 8 anesthesiology physician records with the nearest ZIP codes

  1. John Brumfield, MDMadison, IN 472501952324154
  2. Magdy Khalil, M.D.Madison, IN 472501518917103
  3. Willem Kruger, D.O.Madison, IN 472501326078858
  4. Gene Shilkrot, MDMadison, IN 472501487725602
  5. Samuel Steffey, MDNorth Vernon, IN 472651073772463
  6. Gary Stewart, MDNorth Vernon, IN 472651548296551
  7. Thomas Beck, MDSeymour, IN 472741780726083
  8. Mayra Bonet QuilesSeymour, IN 472741972523090

Common questions

What is Mark T. Viehmann, MD's NPI number?

Mark T. Viehmann, MD's National Provider Identifier (NPI) is 1134140940, issued on Jul 21, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mark T. Viehmann, MD located?

The NPPES record lists a practice address at 1373 E State Road 62, Madison, IN, 47250. Phone: (812) 801-0800. Providers update this record themselves, so call before visiting.

How can I verify Mark T. Viehmann, MD's license?

NPPES lists Indiana license number 01036844A, as entered by the provider. Search the Medical Licensing Board of Indiana at https://www.in.gov/pla/professions/physicians-home/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

What is Mark T. Viehmann, MD's MIPS final score?

The 2023 MIPS final score is 77.3 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.