Michael Dennis Zielinski, M.D.
NPI 1316954134ActiveIndividual· Internal Medicine· Chicago, IL
Internal Medicine (M.D.) in Chicago, Illinois, trained at Northwestern University Feinberg Medical School (class of 1997). Their prescriptions cost Medicare Part D more than their services did: $549,585 for 6,585 claims, against $167,297 paid for services in 2024.
Overview
| NPI | 1316954134 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Aug 2, 2006 |
| Last updated in NPPES | Jul 8, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | — | 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 | 471 |
|---|---|
| Services billed | 2,109 across 39 procedure codes |
| Paid by Medicare | $167,297 |
Part D prescriptions in 2024
| Prescriptions (claims) | 6,585 · 16,329 30-day fills |
|---|---|
| Patients | 520 |
| Total drug cost | $549,585 |
| Generic share | 88% of claims |
Education and affiliations
| Medical school | Northwestern University Feinberg Medical School |
|---|---|
| Graduation year | 1997 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical groups
- Northwestern Medical Faculty FoundationChicago, IL · 4,503 clinicians
- Chesterton Physical Therapy IncChesterton, IN · 186 clinicians
Hospital affiliations
- Northshore University Healthsystem - Evanston HospitalEvanston, IL
- Northwestern Lake Forest HospitalLake Forest, IL
- Northwestern Medicine Central Dupage HospitalWinfield, IL
- Northwestern Memorial HospitalChicago, IL
- Palos Community HospitalPalos Heights, IL
Other facilities
- Apple Home Healthcare, Ltd.Home health agency · Barrington, IL
- Aspire Home Healthcare, LLCHome health agency · Morton Grove, IL
- Home Care ExpertsHome health agency · Burr Ridge, IL
- Shirley Ryan AbilitylabInpatient rehabilitation facility · Chicago, IL
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other internal medicine physicians in Chicago
- 1003270398
- 1003827411
- 1003918004
- 1013022565
- 1013968536
- 1023020989
- 1023053808
- 1023120094
- 1023306230
- 1023347135
- 1023396280
- 1023670833
All 3,299 internal medicine physicians in Chicago · All internal medicine physicians in Illinois