Michael M. Karkkainen, DO
NPI 1821199100ActiveIndividual· Surgery· Marinette, WI
Surgery (DO) in Marinette, Wisconsin, trained at Michigan State University College of Osteopathic Medicine (class of 1991). 188 Medicare patients in 2024, $51,750 paid; nearly all of their 349 Part D prescriptions were generic (95%).
Overview
| NPI | 1821199100 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | No |
| NPI issued | Sep 26, 2006 |
| Last updated in NPPES | Sep 29, 2025 |
| Certified by provider | Sep 29, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Surgery Primary | 208600000X | 38276 | WI |
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 - General Surgery (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 188 |
|---|---|
| Services billed | 439 across 87 procedure codes |
| Paid by Medicare | $51,750 |
Part D prescriptions in 2024
| Prescriptions (claims) | 349 · 356 30-day fills |
|---|---|
| Patients | 167 |
| Total drug cost | $3,573 |
| Generic share | 95% of claims |
Education and affiliations
| Medical school | Michigan State University College of Osteopathic Medicine |
|---|---|
| Graduation year | 1991 |
| Medicare specialty | General Surgery |
Medical group
- Aurora Medical Group, Inc.Milwaukee, WI · 3,813 clinicians
Hospital affiliation
- Aurora Medical Center Bay AreaMarinette, 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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