Nima Hassan Calaf, M.D.
NPI 1790714681ActiveIndividual· Internal Medicine· Temple Hills, MD
Internal Medicine (M.D.) in Temple Hills, Maryland, licensed in MD, with an NPI issued in July 2006. Their prescriptions cost Medicare Part D more than their services did: $291,753 for 2,771 claims, against $64,254 paid for services in 2024. Dexcom, Inc. was the largest of 2 companies reporting payments in 2025, $134.10 in all, mostly food and beverage.
Overview
| NPI | 1790714681 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Jul 2, 2006 |
| Last updated in NPPES | Jul 18, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | D0058976 | 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 - Internal Medicine (DC) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 193 |
|---|---|
| Services billed | 1,006 across 11 procedure codes |
| Paid by Medicare | $64,254 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,771 · 7,139 30-day fills |
|---|---|
| Patients | 231 |
| Total drug cost | $291,753 |
| Generic share | 89% of claims |
Education and affiliations
| Graduation year | 1989 |
|---|---|
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Other facilities
- Amedisys Home Health CareHome health agency · Largo, MD
- Medstar Health Home CareHome health agency · Hyattsville, MD
Industry payments (Open Payments)
- 2025$134.10 · 2 payments from 2 companies
- 2024$62.13 · 3 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Dexcom, Inc. | $120.00 | 1 |
| Exact Sciences Corporation | $14.10 | 1 |
What the 2025 payments were for
- Food and Beverage$134.10 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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