Joehar Hamdan, DO
NPI 1508062159ActiveIndividual· Internal Medicine, Hematology & Oncology· Frankfort, IL
Internal Medicine, Hematology & Oncology (DO) with Riverside Health System, practicing in Frankfort, Illinois. Their prescriptions cost Medicare Part D more than their services did: $3,660,632 for 2,076 claims, against $105,453 paid for services in 2024. Celgene Corporation was the largest of 27 companies reporting payments in 2025, $1,230 in all, mostly food and beverage. Lists Riverside Medical Center as a hospital affiliation.
Overview
| NPI | 1508062159 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | No |
| NPI issued | Jun 21, 2007 |
| Last updated in NPPES | Sep 8, 2026 |
| Certified by provider | Sep 8, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | 036125224 | IL |
| Internal Medicine, Hospice and Palliative Medicine | 207RH0002X | 036.125224 | 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 - Hematology/Oncology (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 381 |
|---|---|
| Services billed | 1,352 across 18 procedure codes |
| Paid by Medicare | $105,453 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,076 · 2,836 30-day fills |
|---|---|
| Patients | 281 |
| Total drug cost | $3,660,632 |
| Generic share | 78% of claims |
Education and affiliations
| Graduation year | 2007 |
|---|---|
| Medicare specialty | Hematology/Oncology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Riverside Health SystemWillmington, IL · 199 clinicians
Hospital affiliation
- Riverside Medical CenterKankakee, IL
Other facilities
- R.M.C. Home Health CareHome health agency · Peotone, IL
Industry payments (Open Payments)
- 2025$1,230 · 57 payments from 27 companies
- 2024$1,153 · 48 payments from 23 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Celgene Corporation | $139.20 | 6 |
| Novartis Pharmaceuticals Corporation | $107.17 | 4 |
| E.R. Squibb & Sons, L.L.C. | $101.67 | 5 |
| Abbvie Inc. | $97.58 | 4 |
| Astrazeneca Pharmaceuticals LP | $91.59 | 5 |
What the 2025 payments were for
- Food and Beverage$1,230 · 57 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records