NPPES file of Aug 9, 2026

Derek Duane Mounsey, DO, MHA

Internal Medicine Physician · Carmel, IN

Derek Duane Mounsey, DO, MHA is an internal medicine physician with a practice address in Carmel, Indiana, and NPI 1205464203, issued on Mar 27, 2020. Check the license (Indiana 02007155A, 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
1205464203
Name
Derek Duane Mounsey
Credential
DO, MHA
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
02007155A IN
Self-reported in NPPES; status is on the state search
Practice location
10590 N Meridian St, Carmel, IN 46290
Phone
(317) 338-6666
Enumerated
Mar 27, 2020
Record last updated
Mar 19, 2024
Medicare enrollment
Enrolled (PECOS I20230711001550); accepts Medicare assignment
Medical or professional school
University Of Pikeville, Kentucky College Of Osteopathic Med, 2020
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.
Download card Updates feed

Also registered at 10590 N Meridian St

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

  1. Eric BainInternal Medicine Physician1083293997
  2. Saumyadip Dasgupta, MDCardiovascular Disease Physician1346215696
  3. Jerin George, DOCardiovascular Disease Physician1205367596
  4. Osama Hallak, MDInterventional Cardiology Physician1154852614
  5. Amanda Lyon, MDStudent in an Organized Health Care Education/Training Program1124465083
  6. Ezequiel Munoz Gonzalez, MDInterventional Cardiology Physician1598118408

Verify Derek Duane Mounsey 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 02007155A
    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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

89% fewer Medicare Part D claims than the average internal medicine physician in 2024

342 Medicare Part D claims for 67 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.

  1. Derek Mounsey342
  2. Specialty average3,176

Most prescribed

  1. Clopidogrel39 claims
  2. Atorvastatin Calcium38 claims
  3. Metoprolol Succinate24 claims
  4. Eliquis18 claims
  5. Amlodipine Besylate17 claims
  6. Isosorbide Mononitrate Er17 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: $343.90

2 payments; by number, the most common kind was food and beverage; the largest payer was Abbott Laboratories. 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. Derek Mounsey$343.90
  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 2 group practices

  1. St Vincent Medical Group IncCarmel, IN
  2. St Vincent Physician Services Hospital And Health Care CenterIndianapolis, IN

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

Derek Duane Mounsey among 2,109 internal medicine physician records in Indiana

Derek Duane Mounsey, DO, MHA 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 2020, is newer than 87% of them.

  • NPI issued2020 · 87% of these records are older, 10% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileYes · 69% of these records are
  • Graduated2020 · median 2005 among the 1,448 with a school on file
  • Record last updated2024 · 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).

68 internal medicine physician records list a practice address in Carmel

They are 68 of the 3,727 NPPES records with a practice address in Carmel, and 2,109 internal medicine physician records in Indiana.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Eric BainCarmel, IN 462901083293997
  2. Martin Bohm, DOIndianapolis, IN 462901699878959
  3. Napoleon Maminta, DOIndianapolis, IN 462901376526855
  4. John Ayres, M.D.Indianapolis, IN 462851053736694
  5. Charles Benson, M.D.Indianapolis, IN 462851245595271
  6. David Debrota, M.D.Indianapolis, IN 462851558451740
  7. William Camm, MDIndianapolis, IN 462821013117944
  8. Shelly Wang, M.D.Indianapolis, IN 462801497006035

Common questions

What is Derek Duane Mounsey, DO, MHA's NPI number?

Derek Duane Mounsey, DO, MHA's National Provider Identifier (NPI) is 1205464203, issued on Mar 27, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Derek Duane Mounsey, DO, MHA located?

The NPPES record lists a practice address at 10590 N Meridian St, Carmel, IN, 46290. Phone: (317) 338-6666. Providers update this record themselves, so call before visiting.

How can I verify Derek Duane Mounsey, DO, MHA's license?

NPPES lists Indiana license number 02007155A, 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 Derek Duane Mounsey, DO, MHA prescribe under Medicare Part D?

In 2024, Derek Duane Mounsey, DO, MHA had 342 Medicare Part D claims for 67 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.