Jeffrey Reid Trimark, MD
NPI 1295781680ActiveIndividual· Internal Medicine· Glenview, IL
Internal Medicine (MD) in Glenview, Illinois, trained at University of Chicago, Pritzker School of Medicine (class of 1992). Their prescriptions cost Medicare Part D more than their services did: $304,503 for 1,962 claims, against $25,818 paid for services in 2024.
Overview
| NPI | 1295781680 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 26, 2006 |
| Last updated in NPPES | Jul 29, 2021 |
| Certified by provider | Jul 29, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 036157173 | IL |
| Internal Medicine | 207R00000X | 34584 | WI |
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 | 112 |
|---|---|
| Services billed | 394 across 22 procedure codes |
| Paid by Medicare | $25,818 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,962 · 4,117 30-day fills |
|---|---|
| Patients | 178 |
| Total drug cost | $304,503 |
| Generic share | 82% of claims |
Education and affiliations
| Medical school | University of Chicago, Pritzker School of Medicine |
|---|---|
| Graduation year | 1992 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Endeavor Health Medical GroupEvanston, IL · 3,350 clinicians
Hospital affiliations
- Northshore University Healthsystem - Evanston HospitalEvanston, IL
- Swedish HospitalChicago, IL
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 83 internal medicine physicians in Glenview · All internal medicine physicians in Illinois