David John Landwehr, DDS MS
NPI 1447333414ActiveIndividual· Dentist, Endodontics· Madison, WI
Opted out of Medicare from March 2019 to March 2027. Dentist, Endodontics (DDS MS) in Madison, Wisconsin, licensed in WI, with an NPI issued in October 2006. Part D covered 15 prescriptions written in 2024, 100% of them generic. Dentsply Sirona Inc was the largest of 5 companies reporting payments in 2025, $254,310 in all, mostly speaking and faculty fees.
Overview
| NPI | 1447333414 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DDS MS |
| Sole proprietor | No |
| NPI issued | Oct 23, 2006 |
| Last updated in NPPES | Jul 21, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Dentist, Endodontics Primary | 1223E0200X | 5120015 | WI |
| Dentist, Oral and Maxillofacial Pathology | 1223P0106X | 5120015 | 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) | Not in the public enrollment file of Oct 1, 2026 |
|---|---|
| Opt-out | Opted out Mar 5, 2019 – Mar 5, 2027 |
| Can order and refer | Yes |
During an opt-out period the provider sees Medicare patients only under private contracts, and Medicare does not pay claims for their services.
Part D prescriptions in 2024
| Prescriptions (claims) | 15 · 15 30-day fills |
|---|---|
| Patients | 14 |
| Total drug cost | $60.15 |
| Generic share | 100% of claims |
Industry payments (Open Payments)
- 2025$254,310 · 146 payments from 5 companies
- 2024$247,859 · 139 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Dentsply Sirona Inc | $253,381 | 140 |
| Dentsply LLC | $423.00 | 2 |
| Dentsply Canada Ltd | $299.65 | 1 |
| Envista Holdings Corporation | $175.98 | 2 |
| Gc America Inc. | $30.00 | 1 |
What the 2025 payments were for
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$240,820 · 15 payments
- Travel and Lodging$9,451 · 52 payments
- Food and Beverage$3,639 · 78 payments
- Consulting Fee$400.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 15 endodontists in Madison · All endodontists in Wisconsin