Daniel O'Brien, M.D.
NPI 1548659980ActiveIndividual· Transplant Surgery· Milwaukee, WI
Transplant Surgery (M.D.) in Milwaukee, Wisconsin, trained at Northwestern University Feinberg Medical School (class of 2016). 99 Medicare patients in 2024, $63,917 paid; nearly all of their 197 Part D prescriptions were generic (97%).
Overview
| NPI | 1548659980 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jan 22, 2015 |
| Last updated in NPPES | Oct 19, 2023 |
| Certified by provider | Oct 19, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Transplant Surgery Primary | 204F00000X | 82286 | WI |
| Transplant Surgery | 204F00000X | A173264 | CA |
| Surgery | 208600000X | A173264 | CA |
| Surgery | 208600000X | 036-165946 | IL |
| Student in an Organized Health Care Education/Training Program | 390200000X | 11018992A | IN |
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 - General Surgery (IL); Practitioner - General Surgery (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 99 |
|---|---|
| Services billed | 425 across 23 procedure codes |
| Paid by Medicare | $63,917 |
Part D prescriptions in 2024
| Prescriptions (claims) | 197 · 248 30-day fills |
|---|---|
| Patients | 35 |
| Total drug cost | $18,412 |
| Generic share | 97% of claims |
Education and affiliations
| Medical school | Northwestern University Feinberg Medical School |
|---|---|
| Graduation year | 2016 |
| Medicare specialty | General Surgery |
Medical group
- Advocate Health and Hospitals CorporationChicago, IL · 3,118 clinicians
Hospital affiliation
- Advocate Christ Hospital & Medical CenterOak Lawn, 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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