Ingeborg de Kok
Prosthodontics · Apex, NCNPI 1235297698
Payments from drug & device makers
What this record shows
The money is spread across several categories — speaking fees (46.4%), travel and lodging and food and beverage — rather than concentrated in one kind of arrangement. 8 manufacturers reported payments, led by Dentsply Sirona Inc at 48.4% of the total. Reporting peaked in 2024 at $28,564 and has fallen 73.3% since, to $7,623 in 2025. Among prosthodontics clinicians in NC 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 178 payments — averaging $427.89 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Dentsply Sirona Inc$37K
- Dentsply IH Inc.$23K
- Dentsply US Prosthetics LLC$8K
- Dentsply IH Sweden$7K
- Dentsply LLC$1K
- Align Technology, Inc.$128
- plus $222 from 2 others
Across 3 payments — averaging $6346.67 each. Payments tied to a research study. These frequently flow through the physician to a hospital or research institution rather than to the physician personally.
- Dentsply IH Sweden$19K
What the payments were for
- Consulting fees$6,2308%
- Speaking & faculty fees$35,35146%
- Travel & lodging$25,25533%
- Food & beverage$7,82510%
- Education$9271%
- Gifts$5751%
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 | 117 | $36,880 |
| Dentsply IH Inc. | 43 | $22,584 |
| Dentsply US Prosthetics LLC | 6 | $8,320 |
| Dentsply IH Sweden | 6 | $6,899 |
| Dentsply LLC | 2 | $1,130 |
| Align Technology, Inc. | 1 | $128 |
| Straumann USA LLC | 2 | $121 |
| Zimmer Biomet | 1 | $101 |
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.
- Implant Dentistry$39,254
- TruExpression$4,590
- Lucitone$3,667
- Enhance$1,063
- ASTRA TECH Implant System$1,046
- DENTSPLY$454
- Invisalign First - Comprehensive$128
- iTero Element 5D Plus$128
- Invisalign Go$128
- Tapered Screw$101
- Primescan Connect$101
How this compares
$76,164 in reported general payments places this provider in the 95th percentile of 72 prosthodontics providers in North Carolina.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| Sodium FluorideFluoride (Sodium) | 13 | $102 |
| Chlorhexidine Gluconate | 14 | $69 |
| Amoxicillin | 14 | $49 |
Paid to pharmacies, not to this prescriber.
Other prosthodontics in Apex
- Nancy ChaffeeApex$525
- Jonathan DawsonCharlotte$499K
- Wendy ClarkChapel Hill$103K
- Matthew HopfenspergerChapel Hill$83K
- Brandon KoffordCary$49K
- Mahmoud SeragDurham$45K
- Kevin LimChapel Hill$43K
- Robert GazdeckDurham$30K
- Christian Brenes VegaHigh Point$20K
- Anthony GraggRaleigh$8K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.