Ronald Ackermann, MD
NPI 1629029210ActiveIndividual· Internal Medicine· Chicago, IL
Internal Medicine (MD) in Chicago, Illinois, trained at University of Wisconsin School of Medicine (class of 1997). Their prescriptions cost Medicare Part D more than their services did: $177,772 for 1,164 claims, against $15,534 paid for services in 2024.
Overview
| NPI | 1629029210 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 16, 2006 |
| Last updated in NPPES | Jul 28, 2016 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 036129127 | 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 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 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 | 58 |
|---|---|
| Services billed | 160 across 17 procedure codes |
| Paid by Medicare | $15,534 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,164 · 2,873 30-day fills |
|---|---|
| Patients | 83 |
| Total drug cost | $177,772 |
| Generic share | 82% of claims |
Education and affiliations
| Medical school | University of Wisconsin School of Medicine |
|---|---|
| Graduation year | 1997 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Northwestern Medical Faculty FoundationChicago, IL · 4,503 clinicians
Hospital affiliations
- Northwestern Medicine Central Dupage HospitalWinfield, IL
- Northwestern Memorial 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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