Eric Christoff, M.D.
NPI 1245287317ActiveIndividual· Internal Medicine· Chicago, IL
Internal Medicine (M.D.) in Chicago, Illinois, trained at Toledo Medical College (class of 1994). Part D covered 3,669 prescriptions written in 2024, 72% of them generic. Viiv Healthcare Company was the largest of 19 companies reporting payments in 2025, $3,757 in all, mostly food and beverage.
Overview
| NPI | 1245287317 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | May 27, 2006 |
| Last updated in NPPES | Dec 19, 2021 |
| Certified by provider | Dec 19, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 036-094098 | 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) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 3,669 · 5,980 30-day fills |
|---|---|
| Patients | 135 |
| Total drug cost | $2,099,547 |
| Generic share | 72% of claims |
Education and affiliations
| Medical school | Toledo Medical College |
|---|---|
| Graduation year | 1994 |
| Medicare specialty | Internal Medicine |
Medical group
- Howard Brown Health CenterChicago, IL · 52 clinicians
Hospital affiliation
- Advocate Illinois Masonic Medical CenterChicago, IL
Industry payments (Open Payments)
- 2025$3,757 · 146 payments from 19 companies
- 2024$3,419 · 156 payments from 14 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Viiv Healthcare Company | $1,325 | 49 |
| Theratechnologies Inc. | $616.38 | 15 |
| Gilead Sciences, Inc. | $595.58 | 26 |
| Merck Sharp & Dohme LLC | $260.96 | 10 |
| Amgen Inc. | $185.62 | 8 |
What the 2025 payments were for
- Food and Beverage$3,757 · 146 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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