Lynne C. Belsky, MD
NPI 1265499438ActiveIndividual· Internal Medicine· Northbrook, IL
Internal Medicine (MD) in Northbrook, Illinois, trained at Rush Medical College of Rush University (class of 2000). Their prescriptions cost Medicare Part D more than their services did: $95,653 for 1,598 claims, against $12,260 paid for services in 2024. Lilly USA, LLC was the largest of 4 companies reporting payments in 2025, $90.22 in all, mostly food and beverage.
Overview
| NPI | 1265499438 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Apr 29, 2006 |
| Last updated in NPPES | Apr 24, 2008 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 036-107233 | 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 - Internal Medicine (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 58 |
|---|---|
| Services billed | 138 across 13 procedure codes |
| Paid by Medicare | $12,260 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,598 · 3,102 30-day fills |
|---|---|
| Patients | 93 |
| Total drug cost | $95,653 |
| Generic share | 86% of claims |
Education and affiliations
| Medical school | Rush Medical College of Rush University |
|---|---|
| Graduation year | 2000 |
| Medicare specialty | Internal Medicine |
Hospital affiliations
- Northshore University Healthsystem - Evanston HospitalEvanston, IL
- Northwestern Lake Forest HospitalLake Forest, IL
Industry payments (Open Payments)
- 2025$90.22 · 5 payments from 4 companies
- 2024$98.75 · 4 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Lilly USA, LLC | $38.56 | 2 |
| Pfizer Inc. | $19.52 | 1 |
| Ibsa Pharma Inc. | $17.40 | 1 |
| Exact Sciences Corporation | $14.74 | 1 |
What the 2025 payments were for
- Food and Beverage$90.22 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 49 internal medicine physicians in Northbrook · All internal medicine physicians in Illinois