Amar Hamad, MD
NPI 1598765166ActiveIndividual· Internal Medicine, Hematology & Oncology· Oak Lawn, IL
Internal Medicine, Hematology & Oncology (MD) with Affiliated Oncologists LLC, practicing in Oak Lawn, Illinois. In 2024 Medicare paid $4,443,319 for 728 patients, and Part D covered 824 of their prescriptions, 73% of them generic. Janssen Biotech, Inc. was the largest of 57 companies reporting payments in 2025, $4,904 in all, mostly food and beverage. Lists Advocate Christ Hospital & Medical Center and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1598765166 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 26, 2005 |
| Last updated in NPPES | Jul 8, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | — | IL |
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 - Medical Oncology (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 728 |
|---|---|
| Services billed | 228,914 across 147 procedure codes |
| Paid by Medicare | $4,443,319 |
Part D prescriptions in 2024
| Prescriptions (claims) | 824 · 1,089 30-day fills |
|---|---|
| Patients | 192 |
| Total drug cost | $2,241,274 |
| Generic share | 73% of claims |
Education and affiliations
| Graduation year | 1985 |
|---|---|
| Medicare specialty | Medical Oncology |
| Secondary specialties | Hematology/Oncology, Internal Medicine |
Medical group
- Affiliated Oncologists LLCMokena, IL · 44 clinicians
Hospital affiliations
- Advocate Christ Hospital & Medical CenterOak Lawn, IL
- Advocate Trinity HospitalChicago, IL
- Palos Community HospitalPalos Heights, IL
- Silver Cross Hospital and Medical CentersNew Lenox, IL
Industry payments (Open Payments)
- 2025$4,904 · 226 payments from 57 companies
- 2024$14,209 · 255 payments from 51 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Biotech, Inc. | $360.50 | 12 |
| Astrazeneca Pharmaceuticals LP | $339.92 | 20 |
| Abbvie Inc. | $319.41 | 18 |
| Novartis Pharmaceuticals Corporation | $312.96 | 18 |
| Pfizer Inc. | $290.62 | 20 |
What the 2025 payments were for
- Food and Beverage$4,731 · 224 payments
- Education$172.98 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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