Alfred O. Greco, MD
NPI 1073501607ActiveIndividual· Internal Medicine, Medical Oncology· Shiloh, IL
Internal Medicine, Medical Oncology (MD) with Washington University Physicians in Illinois Inc, practicing in Shiloh, Illinois. Their prescriptions cost Medicare Part D more than their services did: $2,637,434 for 1,829 claims, against $38,174 paid for services in 2024. Emd Serono, Inc. reported $57.68 in payments in 2025, mostly food and beverage. Lists Alton Memorial Hospital and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1073501607 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Oct 7, 2005 |
| Last updated in NPPES | Apr 21, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Medical Oncology Primary | 207RX0202X | 036125100 | 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 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Medical Oncology (IL); Practitioner - Medical Oncology (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 232 |
|---|---|
| Services billed | 513 across 9 procedure codes |
| Paid by Medicare | $38,174 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,829 · 2,815 30-day fills |
|---|---|
| Patients | 306 |
| Total drug cost | $2,637,434 |
| Generic share | 85% of claims |
Education and affiliations
| Graduation year | 1976 |
|---|---|
| Medicare specialty | Medical Oncology |
| Secondary specialties | Internal Medicine |
Medical group
- Washington University Physicians in Illinois IncSaint Louis, MO · 175 clinicians
Hospital affiliations
- Alton Memorial HospitalAlton, IL
- Barnes Jewish HospitalSaint Louis, MO
- Christian Hospital NortheastSaint Louis, MO
- Memorial HospitalBelleville, IL
- Missouri Baptist Medical CenterSaint Louis, MO
Industry payments (Open Payments)
- 2025$57.68 · 2 payments from 1 company
- 2024$75.28 · 4 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Emd Serono, Inc. | $57.68 | 2 |
What the 2025 payments were for
- Food and Beverage$57.68 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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