Thomas R. Vanderheyden, D.O.
Internal Medicine Physician · South Bend, IN
Thomas R. Vanderheyden, D.O. is an internal medicine physician with a practice address in South Bend, Indiana, and NPI 1528222387, issued on Jul 10, 2008. Check the license (Indiana 02004009A, as entered in NPPES) on the Medical Licensing Board of Indiana; the Medicare figures below come from public CMS files.
- Name
- Thomas R. Vanderheyden
- Credential
- D.O.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 02004009A IN
125-050866 IL
Self-reported in NPPES; status is on the state search - Practice location
- 17501 Generations Dr, South Bend, IN 46635
- Phone
- (574) 234-0049
- Enumerated
- Jul 10, 2008
- Record last updated
- Aug 28, 2012 (not updated in 14 years: call before relying on the address or phone)
- Medicaid ID
- 201066120 IN
- Medicare enrollment
- Enrolled (PECOS I20120720000240); accepts Medicare assignment
- Medical or professional school
- Midwestern University, Chicago College Of Osteopathic Med, 2006
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,109 in Indiana → Look up another NPI →
Also registered at 17501 Generations Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Susan Buford, NPFamily Nurse Practitioner1841969060
- Oliver Gilliam, M.D.Gastroenterology Physician1497759765
- Michael Manbeck, M.D.Gastroenterology Physician1649272725
- David Mark, MDGastroenterology Physician1770587339
- John Mathis, M.D.Gastroenterology Physician1427051341
- Mary Morey, FNP-BCFamily Nurse Practitioner1972500874
Verify Thomas R. Vanderheyden in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Licensing Board of Indiana
Search for license 02004009ACheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
25% fewer Medicare Part D claims than the average internal medicine physician in 2024
2,397 Medicare Part D claims for 985 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Sod Sulf-Potass Sulf-Mag Sulf449 claims
- Pantoprazole Sodium410 claims
- Gavilyte-G121 claims
- Omeprazole111 claims
- Azathioprine109 claims
- Dexlansoprazole Dr88 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.
The MIPS final score for 2023 (Medicare payment program): 63.7 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $1,830.50
116 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 50,334 providers of this specialty with any payment received $1,303.06 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
- Michiana Gastroenterology, IncSouth Bend, IN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Thomas R. Vanderheyden among 2,109 internal medicine physician records in Indiana
Thomas R. Vanderheyden, D.O. is one of 2,109 internal medicine physician records with a practice address in Indiana. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 52% of them.
- NPI issued2008 · 52% of these records are older, 43% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2006 · median 2005 among the 1,448 with a school on file
- Record last updated2012 · 43% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Indiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
54 internal medicine physician records list a practice address in South Bend
They are 54 of the 3,178 NPPES records with a practice address in South Bend, and 2,109 internal medicine physician records in Indiana.
All 2,109 in Indiana → Every provider in South Bend → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Seth HauschildSouth Bend, IN 466281952747883
- Stephen Nightingale, MDSouth Bend, IN 466281952507170
- Edna Pamatmat, M.D.South Bend, IN 466191730194416
- Ernest Vera-Vazquez, D.OSouth Bend, IN 466191689968349
- Stephen Anderson, MDSouth Bend, IN 466171578554648
- Ebonee Davis, MDSouth Bend, IN 466171295725646
- Howard Engel, M.D.South Bend, IN 466171972552636
- Susan Hart-Cavallo, MDSouth Bend, IN 466171649261710
Common questions
What is Thomas R. Vanderheyden, D.O.'s NPI number?
Thomas R. Vanderheyden, D.O.'s National Provider Identifier (NPI) is 1528222387, issued on Jul 10, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Thomas R. Vanderheyden, D.O. located?
The NPPES record lists a practice address at 17501 Generations Dr, South Bend, IN, 46635. Phone: (574) 234-0049. Providers update this record themselves, so call before visiting.
How can I verify Thomas R. Vanderheyden, D.O.'s license?
NPPES lists Indiana license number 02004009A, 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.
How much does Thomas R. Vanderheyden, D.O. prescribe under Medicare Part D?
In 2024, Thomas R. Vanderheyden, D.O. had 2,397 Medicare Part D claims for 985 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Thomas R. Vanderheyden, D.O.'s MIPS final score?
The 2023 MIPS final score is 63.7 of 100. 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.