(6557) Mechanical Tools
Payments companies reported to CMS as associated with (6557) Mechanical Tools. "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 (6557) Mechanical Tools, 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 (6557) Mechanical Tools
These are the largest totals companies reported as associated with (6557) Mechanical Tools. 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) |
|---|---|---|---|
| Travis Pollema | La Jolla, CA | Thoracic Surgery (Cardiothoracic Vascular Surgery) | $755.18 |
| Ryan Donovan | New Haven, CT | Medical | $255.08 |
| Ikechukwu Ifedili | Memphis, TN | Clinical Cardiac Electrophysiology | $194.34 |
| Ulrika Birgersdotter-Green | San Diego, CA | Clinical Cardiac Electrophysiology | $133.66 |
| Rangadham Nagarakanti | Cottonwood, AZ | Clinical Cardiac Electrophysiology | $126.15 |
| Mark Liwanag | Flagstaff, AZ | Clinical Cardiac Electrophysiology | $126.15 |
| Renzo Cataldo | Flagstaff, AZ | Clinical Cardiac Electrophysiology | $126.15 |
| Scott Krankkala | Flagstaff, AZ | Physician Assistant | $126.15 |
| Nicole Sydow | Flagstaff, AZ | Thoracic Surgery (Cardiothoracic Vascular Surgery) | $126.14 |
| Emily Ong | New Haven, CT | Cardiovascular Disease | $123.08 |
Prescribed (6557) Mechanical Tools?
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.