Lawrence K. Weiner, M.D.
Opted out of Medicare from October 2025 to October 2027. Internal Medicine (M.D.) in Niles, Illinois, trained at University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) (class of 1983). Their prescriptions cost Medicare Part D more than their services did: $899,606 for 7,154 claims, against $190,026 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 10 companies reporting payments in 2025, $532.92 in all, mostly food and beverage.
Overview
| NPI | 1508816901 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | May 10, 2006 |
| Last updated in NPPES | Feb 9, 2026 |
| Certified by provider | Feb 9, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 036069107 | 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) | Not in the public enrollment file of Oct 1, 2026 |
|---|---|
| Opt-out | Opted out Oct 1, 2025 – Oct 1, 2027 |
| Can order and refer | Yes |
| Accepts assignment | Yes (participating) |
During an opt-out period the provider sees Medicare patients only under private contracts, and Medicare does not pay claims for their services.
Medicare services in 2024
| Medicare patients | 447 |
|---|---|
| Services billed | 4,949 across 52 procedure codes |
| Paid by Medicare | $190,026 |
Part D prescriptions in 2024
| Prescriptions (claims) | 7,154 · 18,980 30-day fills |
|---|---|
| Patients | 563 |
| Total drug cost | $899,606 |
| Generic share | 87% of claims |
Education and affiliations
| Medical school | University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) |
|---|---|
| Graduation year | 1983 |
| Medicare specialty | Internal Medicine |
Hospital affiliations
- Advocate Condell Medical CenterLibertyville, IL
- Advocate Lutheran General HospitalPark Ridge, IL
- Northshore University Healthsystem - Evanston HospitalEvanston, IL
Other facilities
- Advocate Home Health Care ServHome health agency · Oakbrook, IL
Industry payments (Open Payments)
- 2025$532.92 · 24 payments from 10 companies
- 2024$610.85 · 31 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $166.46 | 8 |
| Novo Nordisk Inc | $118.63 | 5 |
| Lilly USA, LLC | $55.34 | 2 |
| Kowa Pharmaceuticals America, Inc. | $34.96 | 2 |
| Amgen Inc. | $33.75 | 2 |
What the 2025 payments were for
- Food and Beverage$532.92 · 24 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 31 internal medicine physicians in Niles · All internal medicine physicians in Illinois