Martin John Koop, D.D.S.
NPI 1639158660ActiveIndividual· Dentist, Oral and Maxillofacial Surgery· La Crosse, WI
Dentist, Oral and Maxillofacial Surgery (D.D.S.) in La Crosse, Wisconsin, licensed in WI and MN, with an NPI issued in January 2006. 39 Medicare patients in 2024, $4,830 paid; all of their 57 Part D prescriptions were generic.
Overview
| NPI | 1639158660 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.D.S. |
| Sole proprietor | No |
| NPI issued | Jan 10, 2006 |
| Last updated in NPPES | Feb 8, 2016 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Dentist, Oral and Maxillofacial Surgery Primary | 1223S0112X | 6099 | WI |
| Dentist, Oral and Maxillofacial Surgery | 1223S0112X | D9781 | MN |
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 - Maxillofacial Surgery (MN); Practitioner - Oral Surgery (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 39 |
|---|---|
| Services billed | 54 across 25 procedure codes |
| Paid by Medicare | $4,830 |
Part D prescriptions in 2024
| Prescriptions (claims) | 57 · 57 30-day fills |
|---|---|
| Patients | 38 |
| Total drug cost | $192.35 |
| Generic share | 100% of claims |
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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