Darren M. Heesacker, MD
NPI 1013953561ActiveIndividual· Emergency Medicine· Oshkosh, WI
Emergency Medicine (MD) in Oshkosh, Wisconsin, trained at Medical College of Wisconsin (class of 1992). 307 Medicare patients in 2024, $35,273 paid; nearly all of their 476 Part D prescriptions were generic (96%).
Overview
| NPI | 1013953561 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 22, 2006 |
| Last updated in NPPES | Apr 21, 2026 |
| Certified by provider | Apr 21, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Emergency Medicine Primary | 207P00000X | 36486 | WI |
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 - Emergency Medicine (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 307 |
|---|---|
| Services billed | 361 across 19 procedure codes |
| Paid by Medicare | $35,273 |
Part D prescriptions in 2024
| Prescriptions (claims) | 476 · 480 30-day fills |
|---|---|
| Patients | 320 |
| Total drug cost | $6,608 |
| Generic share | 96% of claims |
Education and affiliations
| Medical school | Medical College of Wisconsin |
|---|---|
| Graduation year | 1992 |
| Medicare specialty | Emergency Medicine |
Medical groups
- Aurora Medical Group, Inc.Milwaukee, WI · 3,813 clinicians
- Baycare Clinic LLPGreen Bay, WI · 200 clinicians
- Baycare Aurora LLCGreen Bay, WI · 194 clinicians
Hospital affiliations
- Aurora Baycare Medical CtrGreen Bay, WI
- Aurora Medical Center Bay AreaMarinette, WI
- Aurora Medical Ctr Manitowoc CountyTwo Rivers, WI
- Aurora Medical Ctr OshkoshOshkosh, WI
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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