Gustaaf de Ridder, MD
Anatomic Pathology & Clinical Pathology · Danville, PANPI 1528350923
Payments from drug & device makers
What this record shows
This record is dominated by speaking fees: $94,982 of the $112,045 with a category attached, or 84.8%. Sanofi accounts for 94.4% of it on its own, with 7 other manufacturers making up the rest. 2025 is the largest year on record at $38,029, more than ten times the $33 reported in 2019. Among anatomic pathology & clinical pathology clinicians in PA 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 102 payments — averaging $1098.48 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Sanofi$106K
- Mallinckrodt Hospital Products Inc.$4K
- Terumo BCT, Inc.$1K
- Abbott$463
- Grifols Diagnostic Solutions, Inc.$219
- Bard Peripheral Vascular, Inc.$116
- plus $91 from 2 others
Across 1 payment — averaging $24,000 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.
- Mallinckrodt Hospital Products Inc.$24K
What the payments were for
- Consulting fees$6,4596%
- Speaking & faculty fees$94,98285%
- Travel & lodging$7,9357%
- Food & beverage$2,6092%
- Education$590%
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 |
|---|---|---|
| Sanofi | 92 | $105,746 |
| Mallinckrodt Hospital Products Inc. | 2 | $4,009 |
| Terumo BCT, Inc. | 1 | $1,400 |
| Abbott | 3 | $463 |
| Grifols Diagnostic Solutions, Inc. | 1 | $219 |
| Bard Peripheral Vascular, Inc. | 1 | $116 |
| Haemonetics Corporation | 1 | $58 |
| Ortho-clinical Diagnostics, Inc. | 1 | $33 |
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.
- CABLIVI$94,615
- CELLEX$3,950
- Spectra Optia$1,400
- PROCLAIM$454
- Erytra$219
- ENJAYMO$142
How this compares
$112,045 in reported general payments places this provider in the 95th percentile of 357 anatomic pathology & clinical pathology providers in Pennsylvania.
See all anatomic pathology & clinical pathology providers in Pennsylvania →
Medicare billing
What this is not: this is the amount Original Medicare Part B allowed for services this provider billed in 2024. It is not their income. It excludes Medicare Advantage — now more than half of all Medicare enrollment — along with Medicaid and all commercial insurance, and it is gross practice revenue before staff, rent, supplies and malpractice premiums. CMS also suppresses any figure covering ten or fewer patients, so low-volume providers appear smaller than they are.
Other anatomic pathology & clinical pathology in Danville
- Myra WilkersonDanville$18K
- Jerad GardnerDanville$10K
- Jordan OlsonDanville$3K
- Alesia KaplanPittsburgh$1.9M
- Suzanne BakdashPittsburgh$888K
- David WrightLansdale$773K
- Marguerite Salam HostScranton$390K
- Jeanne LumadueState College$218K
- David LucasGreensburg$158K
- Matthew HannaPittsburgh$36K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Billing: Medicare Physician & Other Practitioners, data year 2024. Original Medicare Part B only.
- Identity: NPPES NPI Registry, July 2026.