Brian Medernach, BRIAN MEDERNACH
NPI 1801050539ActiveIndividual· Internal Medicine· Lombard, IL
Internal Medicine (BRIAN MEDERNACH) in Lombard, Illinois, trained at Loyola University of Chicago, Stritch School of Medicine (class of 2007). In 2024 Medicare paid $108,379 for 355 patients, and Part D covered 673 of their prescriptions, 85% of them generic. Kerecis Limited was the largest of 4 companies reporting payments in 2025, $184.46 in all, mostly food and beverage.
Overview
| NPI | 1801050539 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | BRIAN MEDERNACH |
| Sole proprietor | Yes |
| NPI issued | Jul 11, 2008 |
| Last updated in NPPES | Apr 8, 2026 |
| Certified by provider | Apr 8, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 036.126376 | IL |
| Pediatrics | 208000000X | 036.126376 | IL |
| Internal Medicine, Infectious Disease | 207RI0200X | 036.126376 | 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 - Infectious Disease (IL); Practitioner - Internal Medicine (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 355 |
|---|---|
| Services billed | 1,464 across 31 procedure codes |
| Paid by Medicare | $108,379 |
Part D prescriptions in 2024
| Prescriptions (claims) | 673 · 741 30-day fills |
|---|---|
| Patients | 154 |
| Total drug cost | $104,465 |
| Generic share | 85% of claims |
Education and affiliations
| Medical school | Loyola University of Chicago, Stritch School of Medicine |
|---|---|
| Graduation year | 2007 |
| Medicare specialty | Infectious Disease |
Medical groups
- Id Associates LimitedOak Brook, IL · 6 clinicians
- Infectious Diseases Associates PCElk Grove Village, IL · 4 clinicians
Hospital affiliations
- Advocate Good Samaritan HospitalDowners Grove, IL
- Alexian Brothers Medical Center 1Elk Grove Village, IL
- Loyola University Medical CenterMaywood, IL
- St Alexius Medical CenterHoffman Estates, IL
Other facilities
- Alexian Brothers Home HealthHome health agency · Hanover Park, IL
- Care for Life Home HealthHome health agency · Elgin, IL
Industry payments (Open Payments)
- 2025$184.46 · 4 payments from 4 companies
- 2024$56.20 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Kerecis Limited | $120.36 | 1 |
| Surgenex LLC | $25.99 | 1 |
| Smith+nephew, Inc. | $21.25 | 1 |
| Melinta Therapeutics, LLC | $16.86 | 1 |
What the 2025 payments were for
- Food and Beverage$184.46 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 52 internal medicine physicians in Lombard · All internal medicine physicians in Illinois