NPPES file of Aug 9, 2026

Gregory Edward Buck, M.D.

Family Medicine Physician · Bremen, IN

Gregory Edward Buck, M.D. is a family medicine physician with a practice address in Bremen, Indiana, and NPI 1144269861, issued on Jun 6, 2006. Check the license (Indiana 01039562, 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
1144269861
Name
Gregory Edward Buck
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
01039562 IN
Self-reported in NPPES; status is on the state search
Practice location
1144 W Plymouth St, Bremen, IN 46506
Phone
(574) 546-5363
Enumerated
Jun 6, 2006
Record last updated
Nov 17, 2023
Fax
(574) 546-2575
Medicaid ID
100358210A IN
Medicare enrollment
Enrolled (PECOS I20100726000046); accepts Medicare assignment
Medical or professional school
Indiana University School Of Medicine, 1990
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 1144 W Plymouth St

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

  1. Sandra Brown, M.D.Gynecology Physician1194764449
  2. Sharlotte Brown, NPFamily Nurse Practitioner1619428141
  3. Alyssa Ingle, DNP, APRN, FNP-BCFamily Nurse Practitioner1841927449
  4. Robert Kolbe, MDFamily Medicine Physician1639118839
  5. Keyna Martinez, M.D.Family Medicine Physician1013941699

Verify Gregory Edward Buck 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 01039562
    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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2.2 times the Medicare Part D claims of the average family medicine physician in 2024

7,896 Medicare Part D claims for 473 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 85 claims were for opioids.

  1. Gregory Buck7,896
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium520 claims
  2. Lisinopril373 claims
  3. Amlodipine Besylate317 claims
  4. Levothyroxine Sodium301 claims
  5. Furosemide256 claims
  6. Rosuvastatin Calcium232 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: $969.88

49 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Gregory Buck$969.88
  2. Specialty average$902.55

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. Beacon Medical Group IncBremen, IN

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

11 family medicine physician records list a practice address in Bremen

They are 11 of the 46 NPPES records with a practice address in Bremen, and 3,506 family medicine physician records in Indiana.

Other family medicine physician records in Indiana

  1. Faryaal Aamir, MDBoonville, IN1649581778
  2. Melody Abadpour, MDLafayette, IN1043136419
  3. Troy Abbott, MDMuncie, IN1689693889
  4. Musa Abdalla, M. D.Lagrange, IN1548552375
  5. Azra Abdullah, M.D.Indianapolis, IN1063468916
  6. Daniel Abel, M.D.Mishawaka, IN1508177619
  7. Aris Rodel Abeleda, MDIndianapolis, IN1912185547
  8. Rashmi Abhyankar, M.D.Terre Haute, IN1437263555
  9. Walter Able, M.D.Columbus, IN1588704050
  10. Nauramy Aboro, MDIndianapolis, IN1053853317

Common questions

What is Gregory Edward Buck, M.D.'s NPI number?

Gregory Edward Buck, M.D.'s National Provider Identifier (NPI) is 1144269861, issued on Jun 6, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Gregory Edward Buck, M.D. located?

The NPPES record lists a practice address at 1144 W Plymouth St, Bremen, IN, 46506. Phone: (574) 546-5363. Providers update this record themselves, so call before visiting.

How can I verify Gregory Edward Buck, M.D.'s license?

NPPES lists Indiana license number 01039562, 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 Edward Buck, M.D. prescribe under Medicare Part D?

In 2024, Gregory Edward Buck, M.D. had 7,896 Medicare Part D claims for 473 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.