Tretten
Payments companies reported to CMS as associated with Tretten. "Associated with" is CMS's wording: it links a payment to a product without saying the money was spent on it.
By year
Payments reported as associated with Tretten, per program year, as reported to CMS.
Who makes it
Specialties most often involved
Where the associated payments went, by the receiving clinician's specialty.
Clinicians most associated with Tretten
These are the largest totals companies reported as associated with Tretten. They are typically speaking or consulting arrangements, which companies must report by law; appearing here is not evidence of anything improper.
| Clinician | Location | Specialty | Associated payments (2023-2025) |
|---|---|---|---|
| Doris Quon | Los Angeles, CA | Hematology (Internal Medicine) | $34.81 |
| Benjamin Martin | Fishers, IN | Urology | $25.73 |
| Arlene Bayreder | Las Vegas, NV | Pediatrics (Nurse Practitioner) | $24.34 |
| Dwight Generoso | Las Vegas, NV | Family | $24.34 |
| Ashley Springer | Honolulu, HI | Nurse Practitioner | $24.19 |
| Gregory Bombassei | Avon, CT | Endocrinology, Diabetes & Metabolism | $24.07 |
| Christopher Chan | Los Angeles, CA | Family | $22.72 |
| John Adamson | San Diego, CA | Hematology (Internal Medicine) | $21.55 |
| Edward Crane | Fairfield, OH | Hematology & Oncology | $17.58 |
| Manpreet Chawla | Egg Harbor Township, NJ | Adult Health (Nurse Practitioner) | $16.17 |
Prescribed Tretten?
See what its makers reported for your doctor. Two steps, private, no account.
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.