Derek Mounsey, DO, MHA
NPI 1205464203 · Internal Medicine Physician · Carmel, IN
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Derek Mounsey, DO, MHA is a Internal Medicine Physician provider in Carmel, IN (NPI 1205464203).
Provider details
- NPI number
- 1205464203
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO, MHA
- Sex
- Male
- Sole proprietor
- No
- License
- 02007155A (IN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
6 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
3 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Clopidogrel Bisulfatebrand: Clopidogrel | 39 | 17 |
| Atorvastatin Calcium | 38 | 16 |
| Metoprolol Succinate | 24 | 11 |
| Apixabanbrand: Eliquis | 18 | — |
| Amlodipine Besylate | 17 | — |
| Isosorbide Mononitratebrand: Isosorbide Mononitrate Er | 17 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$344 across 2 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (2)
- 8414 Naab Rd Ste 100Indianapolis, IN 46260-1972Phone: (317) 338-7510Fax: (317) 338-7539
- 8450 Northwest BlvdIndianapolis, IN 46278-1381Phone: (317) 956-1000
Registry dates
- Enumerated
- 2020-03-27
- Last updated
- 2024-03-19
- Certified
- 2024-03-19
Frequently asked questions
- What is Derek Mounsey's NPI number?
- Derek Mounsey's National Provider Identifier (NPI) is 1205464203, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Derek Mounsey's specialty?
- Derek Mounsey is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Derek Mounsey located?
- Derek Mounsey's practice location on file with NPPES is 10590 N Meridian St, Carmel, IN 46290-1028.
- What is Derek Mounsey's phone number?
- The practice phone number listed in the NPPES registry for Derek Mounsey is (317) 338-6666.
- Does Derek Mounsey accept Medicare?
- Derek Mounsey is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Derek Mounsey's NPI active?
- Yes — Derek Mounsey's NPI (1205464203) is active in the NPPES registry as of the last update on 2024-03-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.