Larry L. Duenk, M.D.
NPI 1649236985ActiveIndividual· Family Medicine· Sheboygan, WI
Family Medicine (M.D.) in Sheboygan, Wisconsin, trained at Medical College of Wisconsin (class of 1989). Their prescriptions cost Medicare Part D more than their services did: $68,441 for 592 claims, against $1,366 paid for services in 2024.
Overview
| NPI | 1649236985 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 25, 2006 |
| Last updated in NPPES | Aug 7, 2026 |
| Certified by provider | Aug 7, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 31301-020 | WI |
| Emergency Medicine | 207P00000X | 31301-020 | 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 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 - Family Practice (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 25 |
|---|---|
| Services billed | 28 across 4 procedure codes |
| Paid by Medicare | $1,366 |
Part D prescriptions in 2024
| Prescriptions (claims) | 592 · 1,085 30-day fills |
|---|---|
| Patients | 157 |
| Total drug cost | $68,441 |
| Generic share | 76% of claims |
Education and affiliations
| Medical school | Medical College of Wisconsin |
|---|---|
| Graduation year | 1989 |
| Medicare specialty | Family Practice |
| Secondary specialties | Emergency Medicine |
Medical groups
- Froedtert Andthe Medical College of Wisconsin Community Physicians IncWauwatosa, WI · 1,285 clinicians
- Outreach Community Health Centers IncMilwaukee, WI · 53 clinicians
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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