Gerald James Gamalski, MD
NPI 1679617716ActiveIndividual· Internal Medicine· Gurnee, IL
Internal Medicine (MD) in Gurnee, Illinois, trained at Loyola University of Chicago, Stritch School of Medicine (class of 2004). Their prescriptions cost Medicare Part D more than their services did: $887,324 for 10,409 claims, against $90,332 paid for services in 2024. Boehringer Ingelheim Pharmaceuticals, Inc. reported $122.10 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1679617716 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Feb 19, 2007 |
| Last updated in NPPES | Feb 16, 2021 |
| Certified by provider | Feb 16, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 036117567 | 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 | 523 |
|---|---|
| Services billed | 1,149 across 23 procedure codes |
| Paid by Medicare | $90,332 |
Part D prescriptions in 2024
| Prescriptions (claims) | 10,409 · 25,734 30-day fills |
|---|---|
| Patients | 866 |
| Total drug cost | $887,324 |
| Generic share | 88% of claims |
Education and affiliations
| Medical school | Loyola University of Chicago, Stritch School of Medicine |
|---|---|
| Graduation year | 2004 |
| Medicare specialty | Internal Medicine |
Medical groups
- Endeavor Health Medical GroupEvanston, IL · 3,350 clinicians
- Advantage Physical Therapy and Sports Rehab, LLCKenosha, WI · 294 clinicians
Hospital affiliations
- Advocate Condell Medical CenterLibertyville, IL
- Northshore University Healthsystem - Evanston HospitalEvanston, IL
- Northwestern Lake Forest HospitalLake Forest, IL
Other facilities
- Advocate Home Health Care ServHome health agency · Oakbrook, IL
- Residential Home HealthHome health agency · Northbrook, IL
Industry payments (Open Payments)
- 2025$122.10 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Boehringer Ingelheim Pharmaceuticals, Inc. | $122.10 | 1 |
What the 2025 payments were for
- Food and Beverage$122.10 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 44 internal medicine physicians in Gurnee · All internal medicine physicians in Illinois