Nelly Arnouk, MD
NPI 1710338512ActiveIndividual· Internal Medicine· Baltimore, MD
Internal Medicine (MD) with Medstar Medical Group II LLC, practicing in Baltimore, Maryland. Their prescriptions cost Medicare Part D more than their services did: $797,198 for 1,124 claims, against $52,810 paid for services in 2024. Dexcom, Inc. was the largest of 2 companies reporting payments in 2025, $46.95 in all, mostly food and beverage. Lists Medstar Franklin Square Medical Center and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1710338512 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Jun 23, 2016 |
| Last updated in NPPES | Jun 28, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | D0087149 | MD |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Endocrinology (MD) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 326 |
|---|---|
| Services billed | 800 across 14 procedure codes |
| Paid by Medicare | $52,810 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,124 · 2,512 30-day fills |
|---|---|
| Patients | 195 |
| Total drug cost | $797,198 |
| Generic share | 27% of claims |
Education and affiliations
| Graduation year | 2013 |
|---|---|
| Medicare specialty | Endocrinology |
| Telehealth | Offers telehealth |
Medical group
- Medstar Medical Group II LLCWashington, DC · 3,767 clinicians
Hospital affiliations
- Medstar Franklin Square Medical CenterRosedale, MD
- Medstar Good Samaritan HospitalBaltimore, MD
- Medstar Union Memorial HospitalBaltimore, MD
Industry payments (Open Payments)
- 2025$46.95 · 2 payments from 2 companies
- 2024$44.71 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Dexcom, Inc. | $24.02 | 1 |
| Corcept Therapeutics | $22.93 | 1 |
What the 2025 payments were for
- Food and Beverage$46.95 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 1,555 internal medicine physicians in Baltimore · All internal medicine physicians in Maryland