Nizar A. Assi, MD
NPI 1194772954ActiveIndividual· Internal Medicine, Cardiovascular Disease· Saint Louis, MO
Internal Medicine, Cardiovascular Disease (MD) with Mercy Clinic Fort Smith Communities and 3 other groups, practicing in Saint Louis, Missouri. Their prescriptions cost Medicare Part D more than their services did: $151,964 for 1,233 claims, against $65,758 paid for services in 2024. Medtronic, Inc. was the largest of 7 companies reporting payments in 2025, $3,132 in all, mostly food and beverage. Lists Mercy Hospital Fort Smith as a hospital affiliation.
Overview
| NPI | 1194772954 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 27, 2006 |
| Last updated in NPPES | Jul 24, 2016 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Cardiovascular Disease Primary | 207RC0000X | R5N90 | MO |
| Internal Medicine, Cardiovascular Disease | 207RC0000X | 036076345 | IL |
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 - Interventional Cardiology (AR); Practitioner - Interventional Cardiology (CO); Practitioner - Cardiovascular Disease (Cardiology) (IL); Practitioner - Cardiovascular Disease (Cardiology) (MO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 234 |
|---|---|
| Services billed | 597 across 67 procedure codes |
| Paid by Medicare | $65,758 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,233 · 2,138 30-day fills |
|---|---|
| Patients | 318 |
| Total drug cost | $151,964 |
| Generic share | 82% of claims |
Education and affiliations
| Graduation year | 1985 |
|---|---|
| Medicare specialty | Interventional Cardiology |
Medical groups
- Mercy Clinic Fort Smith CommunitiesFort Smith, AR · 372 clinicians
- Fands Physical Therapy, IncAlma, AR · 221 clinicians
- Peaks Medical PCDillon, CO · 4 clinicians
- Peaks Urgent Care PCDillon, CO · 2 clinicians
Hospital affiliation
- Mercy Hospital Fort SmithFort Smith, AR
Industry payments (Open Payments)
- 2025$3,132 · 49 payments from 7 companies
- 2024$926.37 · 27 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Medtronic, Inc. | $2,303 | 31 |
| Abiomed | $444.89 | 10 |
| Kestra Medical Technology Services, Inc. | $156.50 | 1 |
| Boston Scientific Corporation | $125.00 | 1 |
| Novartis Pharmaceuticals Corporation | $55.75 | 3 |
What the 2025 payments were for
- Food and Beverage$1,844 · 36 payments
- Travel and Lodging$1,288 · 13 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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