Abdallah Nizar Assaf, MD
NPI 1346821758ActiveIndividual· Internal Medicine· Plano, TX
Internal Medicine (MD) with Questcare Hospitalists PLLC and 1 other group, practicing in Plano, Texas. Part D covered 443 prescriptions written in 2024, 83% of them generic. Penumbra, Inc. was the largest of 4 companies reporting payments in 2025, $498.56 in all, mostly food and beverage. Lists Baylor Scott and White Medical Center Sunnyvale and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1346821758 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 16, 2021 |
| Last updated in NPPES | Jul 16, 2025 |
| Certified by provider | Jul 16, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | V8930 | TX |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
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 (TX) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 443 · 793 30-day fills |
|---|---|
| Patients | 49 |
| Total drug cost | $54,595 |
| Generic share | 83% of claims |
Education and affiliations
| Graduation year | 2021 |
|---|---|
| Medicare specialty | Internal Medicine |
Medical groups
- Questcare Hospitalists PLLCNorth Richland Hills, TX · 264 clinicians
- Poppy Drive Inpatient Services PLLCSunnyvale, TX · 12 clinicians
Hospital affiliations
- Baylor Scott and White Medical Center SunnyvaleSunnyvale, TX
- Hunt Regional Medical CenterGreenville, TX
- Medical Center of McKinneyMcKinney, TX
- Medical City DentonDenton, TX
- Medical City PlanoPlano, TX
Industry payments (Open Payments)
- 2025$498.56 · 5 payments from 4 companies
- 2024$41.69 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Penumbra, Inc. | $163.96 | 1 |
| Abiomed | $148.56 | 1 |
| Shockwave Medical, Inc | $146.38 | 1 |
| Zoll Services LLC (A/K/A Zoll Lifecor Corp) | $39.66 | 2 |
What the 2025 payments were for
- Food and Beverage$498.56 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 314 internal medicine physicians in Plano · All internal medicine physicians in Texas