Mazen Khalil, M.D.
NPI 1659323608ActiveIndividual· Internal Medicine, Hematology & Oncology· Jonesboro, AR
Internal Medicine, Hematology & Oncology (M.D.) with Cancer Care Associates Inc, practicing in Jonesboro, Arkansas. Their prescriptions cost Medicare Part D more than their services did: $8,104,435 for 2,227 claims, against $164,244 paid for services in 2024. Pfizer Inc. was the largest of 41 companies reporting payments in 2025, $2,928 in all, mostly food and beverage. Lists Arkansas Methodist Medical Center and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1659323608 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | May 17, 2006 |
| Last updated in NPPES | Oct 24, 2008 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | E-5722 | AR |
| Internal Medicine, Hematology & Oncology | 207RH0003X | 40968 | TN |
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 (AR) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 598 |
|---|---|
| Services billed | 3,114 across 10 procedure codes |
| Paid by Medicare | $164,244 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,227 · 2,830 30-day fills |
|---|---|
| Patients | 362 |
| Total drug cost | $8,104,435 |
| Generic share | 75% of claims |
Education and affiliations
| Graduation year | 1994 |
|---|---|
| Medicare specialty | Internal Medicine |
| Secondary specialties | Hematology/Oncology |
Medical group
- Cancer Care Associates IncJonesboro, AR · 21 clinicians
Hospital affiliations
- Arkansas Methodist Medical CenterParagould, AR
- Great River Medical CenterBlytheville, AR
- Lawrence Memorial HospitalWalnut Ridge, AR
- St Bernards Five Rivers Medical CenterPocahontas, AR
- St Bernards Medical CenterJonesboro, AR
Other facilities
- St Bernards Home CareHome health agency · Jonesboro, AR
Industry payments (Open Payments)
- 2025$2,928 · 159 payments from 41 companies
- 2024$3,126 · 155 payments from 36 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pfizer Inc. | $275.67 | 19 |
| Novartis Pharmaceuticals Corporation | $234.29 | 17 |
| Merck Sharp & Dohme LLC | $229.68 | 12 |
| Janssen Biotech, Inc. | $225.55 | 11 |
| Regeneron Healthcare Solutions, Inc. | $163.94 | 4 |
What the 2025 payments were for
- Food and Beverage$2,928 · 159 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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