Gustaaf Gregoire De Ridder, MD
NPI 1528350923ActiveIndividual· Pathology, Anatomic Pathology & Clinical Pathology· Danville, PA
Pathology, Anatomic Pathology & Clinical Pathology (MD) in Danville, Pennsylvania, trained at Duke University School of Medicine (class of 2011). Medicare paid $41,821 for services to 1,256 patients in 2024. Genzyme Corporation was the largest of 2 companies reporting payments in 2025, $38,029 in all, mostly speaking and faculty fees.
Overview
| NPI | 1528350923 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 4, 2011 |
| Last updated in NPPES | Aug 5, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Pathology, Anatomic Pathology & Clinical Pathology Primary | 207ZP0102X | MD467020 | PA |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
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) | Enrolled Practitioner - Pathology (PA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,256 |
|---|---|
| Services billed | 2,571 across 16 procedure codes |
| Paid by Medicare | $41,821 |
Education and affiliations
| Medical school | Duke University School of Medicine |
|---|---|
| Graduation year | 2011 |
| Medicare specialty | Pathology |
Medical groups
- Geisinger ClinicDanville, PA · 3,467 clinicians
- Geisinger-Hm Joint Venture LLCMontoursville, PA · 422 clinicians
Hospital affiliations
- Geisinger Medical CenterDanville, PA
- Geisinger Wyoming Valley Medical CenterWilkes Barre, PA
- Geisinger-Bloomsburg HospitalBloomsburg, PA
- Geisinger-Community Medical CenterScranton, PA
- Geisinger-Lewistown HospitalLewistown, PA
Industry payments (Open Payments)
- 2025$38,029 · 35 payments from 2 companies
- 2024$33,988 · 29 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Genzyme Corporation | $37,566 | 32 |
| Abbott Laboratories | $463.40 | 3 |
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$32,178 · 7 payments
- Travel and Lodging$5,101 · 19 payments
- Food and Beverage$750.00 · 9 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 36 pathologists in Danville · All pathologists in Pennsylvania