NPPES file of Aug 9, 2026

Derek Brian Hammelman, DDS

Dentist · Newburgh, IN

Derek Brian Hammelman, DDS is a dentist with a practice address in Newburgh, Indiana, and NPI 1245927672, issued on Apr 18, 2023. Check the license (Indiana 12014114A, as entered in NPPES) with the Indiana board that licenses this profession; 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
1245927672
Name
Derek Brian Hammelman
Credential
DDS
Primary taxonomy
Dentist 122300000X
License number
12014114A IN
Self-reported in NPPES; status is on the state search
Practice location
10699 Drexton PL, Newburgh, IN 47630
Phone
(812) 774-0020
Enumerated
Apr 18, 2023
Record last updated
Jun 5, 2023
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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Verify Derek Brian Hammelman in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Indiana board licenses this profession
    Search for license 12014114A
    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
Find the Indiana license search

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70% more Medicare Part D claims than the average dentist in 2024

146 Medicare Part D claims for 77 beneficiaries, against an average of 86 among the 51,021 providers of this specialty who prescribed in Part D. 27 claims were for opioids.

  1. Derek Hammelman146
  2. Specialty average86

Most prescribed

  1. Amoxicillin68 claims
  2. Ibuprofen26 claims
  3. Hydrocodone-Acetaminophen22 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: $13.86

1 payment: food and beverage; the largest payer was Dentsply Sirona Inc. The 31,974 providers of this specialty with any payment received $540.36 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Derek Hammelman$13.86
  2. Specialty average$540.36

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

Derek Brian Hammelman among 1,582 dentist records in Indiana

Derek Brian Hammelman, DDS is one of 1,582 dentist records with a practice address in Indiana. 66% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 86% of them.

  • NPI issued2023 · 86% of these records are older, 10% newer
  • In a Medicare fileYes · 66% of these records are
  • In the CMS Doctors and Clinicians fileNo · under 1% of these records are
  • Record last updated2023 · 70% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 122300000X and a Indiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Dentist providers in Indiana

There are 1,582 dentist records in Indiana.

The 8 dentist records with the nearest ZIP codes

  1. Carla Alldredge, DMDNewburgh, IN 476301790842003
  2. Gerald Enlow, D.M.D.Newburgh, IN 476301639185432
  3. Alisa Fabiano, DDSNewburgh, IN 476301982270476
  4. William Hart, DDSNewburgh, IN 476301083874812
  5. Ryan KappNewburgh, IN 476301932580438
  6. Edward Prusz, D.D.S.Newburgh, IN 476301669503322
  7. Jon Vandeventer, D.D.S.Newburgh, IN 476301912038258
  8. Alesia Brown, DMDPoseyville, IN 476331073794640

Common questions

What is Derek Brian Hammelman, DDS's NPI number?

Derek Brian Hammelman, DDS's National Provider Identifier (NPI) is 1245927672, issued on Apr 18, 2023. An NPI identifies a provider in billing; it is not a license.

Where is Derek Brian Hammelman, DDS located?

The NPPES record lists a practice address at 10699 Drexton PL, Newburgh, IN, 47630. Phone: (812) 774-0020. Providers update this record themselves, so call before visiting.

How can I verify Derek Brian Hammelman, DDS's license?

NPPES lists Indiana license number 12014114A, as entered by the provider. Search the Indiana board that licenses this profession; the NPPES record confirms identity only.

How much does Derek Brian Hammelman, DDS prescribe under Medicare Part D?

In 2024, Derek Brian Hammelman, DDS had 146 Medicare Part D claims for 77 beneficiaries; the average among dentist prescribers was 86. 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.