David Landwehr
Endodontics · Madison, WINPI 1447333414
Payments from drug & device makers
What this record shows
This record is dominated by speaking fees: $1,224,960 of the $1,354,784 with a category attached, or 90.4%. Dentsply Sirona Inc accounts for 88.2% of it on its own, with 10 other manufacturers making up the rest. Among endodontics clinicians in WI with any reported payments, this total sits in the top 5% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 794 payments — averaging $1706.28 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Dentsply Sirona Inc$1.2M
- Tulsa Dental Products LLC$131K
- Maillefer Instruments Holding Sarl$18K
- Dentsply IH Inc.$7K
- Sirona Dental, Inc.$1K
- Dentsply Canada Ltd$674
- plus $1K from 5 others
What the payments were for
- Consulting fees$4000%
- Speaking & faculty fees$1,224,96090%
- Travel & lodging$106,1248%
- Food & beverage$20,7982%
- Education$1,7380%
- Gifts$1290%
- Entertainment$6350%
General payments by program year
Who reported the general payments
Companies are grouped under their corporate parent — a single manufacturer often files under several CMS reporting entities. Research and ownership payments are counted separately and are not in this table.
| Company | Payments | Total |
|---|---|---|
| Dentsply Sirona Inc | 686 | $1,195,308 |
| Tulsa Dental Products LLC | 77 | $131,007 |
| Maillefer Instruments Holding Sarl | 5 | $18,171 |
| Dentsply IH Inc. | 12 | $7,368 |
| Sirona Dental, Inc. | 1 | $1,000 |
| Dentsply Canada Ltd | 5 | $674 |
| Sonendo Inc | 2 | $611 |
| Dentsply LLC | 2 | $423 |
| Envista Holdings Corporation | 2 | $176 |
| GC America Inc. | 1 | $30 |
| Nusmile, Ltd. | 1 | $16 |
What the payments were tied to
Products named in the reported payments. Only payments of $100 or more are attributed here — the typical reported payment nationally is a meal worth about $16, and listing those product-by-product would be noise.
- Endodontic Dentistry$138,271
- WaveOne Gold Conform Fit$16,819
- WaveOne$11,072
- Q-MIX$5,963
- TRUSHAPE$5,686
- DENTSPLY$2,371
- Endo Activator$1,633
- Consumable Dentistry$1,460
- ProMark$1,295
- CEREC$1,000
- ORTHOPHOS$1,000
- GentleWave Console$562
- PROTAPER$364
- X-SMART$164
- ASTRA TECH Implant System$137
- Gold Star$114
- PRIMESCAN$114
- ENDO-ACCESS$108
- GUTTACORE$106
- TF OBTURATORS$102
How this compares
$1,354,784 in reported general payments places this provider in the 95th percentile of 56 endodontics providers in Wisconsin.
Other endodontics in Madison
- Nabeel KhanMadison$1K
- Chad CampanelliMadison$1K
- Brittany KawasMadison$1K
- Douglas FerrisMadison$926
- Andrew WrightMadison$50
- B AustinMadison$4
- Andrew LulloffGreen Bay$3K
- Lynne BrockBrookfield$3K
- Reid WycoffMiddleton$2K
- Benjamin FravelHudson$1K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.