GlassScript

Tulsa Dental Products LLC

Reporting payments is a legal requirement; large totals often reflect large product portfolios.

$19Mgeneral payments (2019-2025)
$240research payments (2019-2025)
2,223clinicians paid

General and research payments are shown separately, never blended. Research payments are often institution-directed and tied to clinical trials.

General payments by year

2019 $2.8M
2020 $2.6M
2021 $3.1M
2022 $2.7M
2023 $2.7M
2024 $2.7M
2025 $2.3M

General payments only, as reported to CMS. Research payments are totaled above and not included in these bars.

Products most associated with its payments

Specialties it works with most

Endodontics $13M
General Practice (Dentist) $5.3M
Dentist $121K
Oral & Maxillofacial Surgery $6,681
Oral and Maxillofacial Radiology $6,349
Oral and Maxillofacial Surgery $3,673

Clinicians with the largest reported totals

Often long-running consulting, speaking, or advisory relationships, which companies must report by law. A large total is not evidence of anything improper.

ClinicianLocationSpecialtyGeneral payments (2019-2025)
Nathan Li Lancaster, CA General Practice (Dentist) $5,191,406.65
Michael Scianamblo San Rafael, CA Endodontics $4,767,346.46
Sergio Kuttler Plantation, FL Endodontics $4,599,140.58
Clifford Ruddle Santa Barbara, CA Endodontics $933,568.88
George Bruder Stony Brook, NY Endodontics $793,349.03
John West Tacoma, WA Endodontics $567,522.62
Ove Peters San Francisco, CA Endodontics $309,515.80
John Stropko Prescott, AZ Endodontics $282,886.19
James Gutmann Dallas, TX Endodontics $144,575.12
David Landwehr Madison, WI Endodontics $131,006.60

Source: CMS Open Payments, program years 2019-2025, as reported to CMS by drug and device makers (published June 30, 2026). Drug and device detail covers 2023-2025.