Pipeline
Payments companies reported to CMS as associated with Pipeline. "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 Pipeline, 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 Pipeline
These are the largest totals companies reported as associated with Pipeline. 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) |
|---|---|---|---|
| Daniel Sahlein | Carmel, IN | Vascular & Interventional Radiology | $286,356.63 |
| Maksim Shapiro | New York, NY | Neuroradiology | $124,370.52 |
| Santiago Ortega Gutierrez | Iowa City, IA | Vascular & Interventional Radiology | $119,434.10 |
| Aniel Majjhoo | Flint, MI | Vascular Neurology | $110,498.60 |
| Alois Zauner | San Diego, CA | Neurological Surgery | $106,004.65 |
| Jason Davies | Buffalo, NY | Neurological Surgery | $94,661.44 |
| Ramesh Grandhi | Salt Lake City, UT | Neurological Surgery | $78,904.25 |
| Ricardo Hanel | Jacksonville, FL | Neurological Surgery | $70,690.48 |
| Stavropoula Tjoumakaris | Philadelphia, PA | Neurological Surgery | $70,623.54 |
| Amon Liu | Redwood City, CA | Neuroradiology | $56,354.78 |
Prescribed Pipeline?
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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.