Hassan Hatoum, MD
NPI 1902137540ActiveIndividual· Internal Medicine, Hematology & Oncology· Oklahoma City, OK
Internal Medicine, Hematology & Oncology (MD) with Ou Health Partners Inc, practicing in Oklahoma City, Oklahoma. Their prescriptions cost Medicare Part D more than their services did: $1,806,253 for 926 claims, against $47,269 paid for services in 2024. Exelixis Inc. was the largest of 8 companies reporting payments in 2025, $9,510 in all, mostly consulting fees. Lists McAlester Regional Health Center and 1 other hospital as hospital affiliations.
Overview
| NPI | 1902137540 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Jan 21, 2010 |
| Last updated in NPPES | Aug 15, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | 31656 | OK |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Hematology/Oncology (OK) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 172 |
|---|---|
| Services billed | 543 across 14 procedure codes |
| Paid by Medicare | $47,269 |
Part D prescriptions in 2024
| Prescriptions (claims) | 926 · 1,147 30-day fills |
|---|---|
| Patients | 150 |
| Total drug cost | $1,806,253 |
| Generic share | 73% of claims |
Education and affiliations
| Graduation year | 2000 |
|---|---|
| Medicare specialty | Hematology/Oncology |
| Secondary specialties | Internal Medicine |
Medical group
- Ou Health Partners IncOklahoma City, OK · 1,184 clinicians
Hospital affiliations
- McAlester Regional Health CenterMcAlester, OK
- O U Medical CenterOklahoma City, OK
Industry payments (Open Payments)
- 2025$9,510 · 27 payments from 8 companies
- 2024$611.33 · 20 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Exelixis Inc. | $4,820 | 15 |
| Astrazeneca Pharmaceuticals LP | $4,378 | 4 |
| Caris Mpi, Inc. | $133.20 | 1 |
| Genzyme Corporation | $57.98 | 1 |
| Merck Sharp & Dohme LLC | $56.39 | 2 |
What the 2025 payments were for
- Consulting Fee$4,100 · 1 payment
- Honoraria$2,625 · 1 payment
- Travel and Lodging$1,753 · 5 payments
- Food and Beverage$1,018 · 19 payments
- Education$14.17 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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