Marek Filipiuk, M.D.
NPI 1013981778ActiveIndividual· Internal Medicine· Long Grove, IL
Internal Medicine (M.D.) with Best Practices Inpatient Care, Ltd., practicing in Long Grove, Illinois. 677 Medicare patients in 2024, $161,149 paid; nearly all of their 567 Part D prescriptions were generic (93%). Stryker Corporation reported $131.03 in payments in 2025, mostly food and beverage. Lists Advocate Condell Medical Center and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1013981778 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Feb 17, 2006 |
| Last updated in NPPES | Dec 28, 2021 |
| Certified by provider | Dec 28, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 36109027 | IL |
| Hospitalist | 208M00000X | 036109027 | IL |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 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 | 677 |
|---|---|
| Services billed | 1,664 across 11 procedure codes |
| Paid by Medicare | $161,149 |
Part D prescriptions in 2024
| Prescriptions (claims) | 567 · 585 30-day fills |
|---|---|
| Patients | 283 |
| Total drug cost | $16,888 |
| Generic share | 93% of claims |
Education and affiliations
| Graduation year | 1992 |
|---|---|
| Medicare specialty | Internal Medicine |
Medical group
- Best Practices Inpatient Care, Ltd.Barrington, IL · 82 clinicians
Hospital affiliations
- Advocate Condell Medical CenterLibertyville, IL
- Advocate Good Shepherd HospitalBarrington, IL
- Northwest Community Hospital 1Arlington Heights, IL
Industry payments (Open Payments)
- 2025$131.03 · 1 payment from 1 company
- 2024$329.81 · 3 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Stryker Corporation | $131.03 | 1 |
What the 2025 payments were for
- Food and Beverage$131.03 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine providers in Long Grove
- 1316172372
- 1386650786
- 1154686525
- 1326108606
- 1952461238
- 1912561242
- 1356929723
- 1952337172
- 1720148000
- 1710058227
- 1053592816
- 1639519309