Marc Geissberger
General Practice · Greenbrae, CANPI 1093817967
Payments from drug & device makers
What this record shows
This record is dominated by speaking fees: $500,548 of the $582,897 with a category attached, or 85.9%. 19 manufacturers reported payments, led by Ultradent Products Inc at 40.8% of the total. Among general practice clinicians in CA 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 340 payments — averaging $1714.40 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Ultradent Products Inc$238K
- GC America Inc.$97K
- Solventum Corporation$62K
- Clinician's Choice Dental Products Inc.$59K
- 3M Company$44K
- VOCO America Inc.$40K
- plus $43K from 13 others
What the payments were for
- Consulting fees$26,5005%
- Speaking & faculty fees$500,54886%
- Travel & lodging$36,8136%
- Food & beverage$16,3003%
- Gifts$2,6900%
- Entertainment$460%
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 |
|---|---|---|
| Ultradent Products Inc | 102 | $237,911 |
| GC America Inc. | 62 | $97,418 |
| Solventum Corporation | 46 | $61,502 |
| Clinician's Choice Dental Products Inc. | 33 | $59,005 |
| 3M Company | 24 | $44,285 |
| VOCO America Inc. | 35 | $39,757 |
| Doxa Dental, Inc. | 8 | $7,250 |
| Midway Dental Supply, LLC | 1 | $7,000 |
| Den-mat Holdings, LLC | 3 | $5,000 |
| Kerr Corporation | 5 | $4,642 |
| Henry Schein, Inc. | 3 | $4,500 |
| Zest Holdings, LLC | 2 | $4,000 |
| Premier Dental Products Company | 4 | $3,000 |
| Nobel Biocare USA | 1 | $2,500 |
| Kettenbach LP | 4 | $2,204 |
| Implant Direct Sybron International LLC | 1 | $1,000 |
| Garrison Dental Solutions | 1 | $921 |
| NSK America Corporation | 3 | $704 |
| Ivoclar Vivadent, Inc. | 2 | $298 |
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.
- Opalescence$187,058
- G-aenial$61,857
- Dental Supplies$44,786
- Clarity Aligners$30,068
- MI Paste$25,073
- Filtek$24,660
- 3M Filtek$19,311
- EQUIA$18,976
- Impregum Polyether Impression Materials$18,828
- G-aenial Universal Injectable$18,703
- Scotchbond Universal Adhesive$18,640
- G-CEM$17,036
- 3M ESPE Filtek Supreme Ultra Universal Restorative$16,579
- 3M Scotchbond$14,111
- MI Paste One$14,000
- Filtek Universal Restorative$13,112
- VOCO Retraction Paste$12,294
- RelyX Ultimate Cement$11,716
- RelyX Unicem & Unicem 2 Cements$11,716
- V-Posil$11,460
How this compares
$582,897 in reported general payments places this provider in the 95th percentile of 12,963 general practice providers in California.
Other general practice in Greenbrae
- Nathan LiLancaster$5.2M
- Milton McCollSan Jose$4.9M
- Frederic MollRedwood City$2.5M
- Bradley ChingUpland$1.4M
- Eric BrassTorrance$755K
- Robert CampbellLong Beach$501K
- Varo BoyerNorth Hills$482K
- Michael MiyasakiSacramento$464K
- Apolinar MadrigalCeres$419K
- Deepak ShettySan Jose$387K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.