Jeffrey Nathanson, MD
NPI 1972559615ActiveIndividual· Internal Medicine, Gastroenterology· Northbrook, IL
Opted out of Medicare from July 2021 to July 2027. Internal Medicine, Gastroenterology (MD) in Northbrook, Illinois, licensed in IL, with an NPI issued in May 2006. Part D covered 77 prescriptions written in 2024, 65% of them generic. Abbvie Inc. was the largest of 18 companies reporting payments in 2025, $2,491 in all, mostly food and beverage.
Overview
| NPI | 1972559615 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 25, 2006 |
| Last updated in NPPES | Sep 26, 2025 |
| Certified by provider | Sep 26, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 036105275 | 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 Jul 1, 2021 – Jul 1, 2027 |
| Can order and refer | Yes |
During an opt-out period the provider sees Medicare patients only under private contracts, and Medicare does not pay claims for their services.
Part D prescriptions in 2024
| Prescriptions (claims) | 77 · 101 30-day fills |
|---|---|
| Patients | 26 |
| Total drug cost | $21,198 |
| Generic share | 65% of claims |
Industry payments (Open Payments)
- 2025$2,491 · 104 payments from 18 companies
- 2024$2,880 · 122 payments from 19 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $621.04 | 30 |
| Janssen Biotech, Inc. | $363.95 | 14 |
| Lilly USA, LLC | $222.37 | 9 |
| Takeda Pharmaceuticals U.S.A., Inc. | $215.56 | 10 |
| Pfizer Inc. | $188.06 | 9 |
What the 2025 payments were for
- Food and Beverage$2,440 · 103 payments
- Education$50.95 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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