NPPES file of Aug 9, 2026

Gregory Kent Heumann, MD

Internal Medicine Physician · North Vernon, IN

Gregory Kent Heumann, MD is an internal medicine physician with a practice address in North Vernon, Indiana, and NPI 1346213790, issued on Feb 8, 2006. Check the license (Indiana 01033775, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1346213790
Name
Gregory Kent Heumann
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
01033775 IN
Self-reported in NPPES; status is on the state search
Practice location
301 Henry St, North Vernon, IN 47265
Phone
(812) 352-4300
Enumerated
Feb 8, 2006
Record last updated
Jun 29, 2022
Medicaid ID
100195080A IN
Medicare enrollment
Enrolled (PECOS I20090309000390); accepts Medicare assignment
Medical or professional school
Indiana University School Of Medicine, 1984
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 301 Henry St

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

  1. Sweet Allen, M.D.Internal Medicine Physician1023208733
  2. Warren Balazs, DOOtolaryngology Physician1578514295
  3. Katherine Conover, FNPFamily Nurse Practitioner1265802409
  4. Melissa Croucher, NPPediatric Nurse Practitioner1588020739
  5. Sesame Dijeng, M.D.Emergency Medicine Physician1093767253
  6. Kayla Duff, OTD, OTROccupational Therapist1144023169

Verify Gregory Kent Heumann 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 01033775
    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

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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73% more Medicare Part D claims than the average internal medicine physician in 2024

5,504 Medicare Part D claims for 352 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 195 claims were for opioids.

  1. Gregory Heumann5,504
  2. Specialty average3,176

Most prescribed

  1. Lisinopril279 claims
  2. Pravastatin Sodium220 claims
  3. Metformin Hcl195 claims
  4. Amlodipine Besylate193 claims
  5. Losartan Potassium184 claims
  6. Gabapentin164 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: $105.89

1 payment: food and beverage; the largest payer was Sensible Medical Innovations 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.

  1. Gregory Heumann$105.89
  2. Specialty average$1,303.06

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

  1. St Vincent Medical Group IncNorth Vernon, IN

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

Gregory Kent Heumann among 2,109 internal medicine physician records in Indiana

Gregory Kent Heumann, MD 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 2006, is newer than 13% of them.

  • NPI issued2006 · 13% of these records are older, 54% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileYes · 69% of these records are
  • Graduated1984 · median 2005 among the 1,448 with a school on file
  • Record last updated2022 · 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).

6 internal medicine physician records list a practice address in North Vernon

They are 6 of the 159 NPPES records with a practice address in North Vernon, and 2,109 internal medicine physician records in Indiana.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Sweet Allen, M.D.North Vernon, IN 472651023208733
  2. Adnan Khan, M.D.North Vernon, IN 472651932149077
  3. Judith Koehler, MDNorth Vernon, IN 472651336177708
  4. Scott Robinson, M.D.North Vernon, IN 472651144364829
  5. Zachary Tucker, M.D.North Vernon, IN 472651265859649
  6. Narinder Dabhia, M.D.Seymour, IN 472741104950153
  7. David Dollens, MDSeymour, IN 472741033115977
  8. Marion Huff, MDSeymour, IN 472741205156569

Common questions

What is Gregory Kent Heumann, MD's NPI number?

Gregory Kent Heumann, MD's National Provider Identifier (NPI) is 1346213790, issued on Feb 8, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Gregory Kent Heumann, MD located?

The NPPES record lists a practice address at 301 Henry St, North Vernon, IN, 47265. Phone: (812) 352-4300. Providers update this record themselves, so call before visiting.

How can I verify Gregory Kent Heumann, MD's license?

NPPES lists Indiana license number 01033775, 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 Gregory Kent Heumann, MD prescribe under Medicare Part D?

In 2024, Gregory Kent Heumann, MD had 5,504 Medicare Part D claims for 352 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.