Exservan
Payments companies reported to CMS as associated with Exservan. "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 Exservan, 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 Exservan
These are the largest totals companies reported as associated with Exservan. 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) |
|---|---|---|---|
| Gary Pattee | Lincoln, NE | Neurology (Psychiatry & Neurology) | $1,201.97 |
| David Walk | Minneapolis, MN | Neuromuscular Medicine (Psychiatry & Neurology) | $1,100.00 |
| Stanley Appel | Houston, TX | Neurology (Psychiatry & Neurology) | $1,100.00 |
| Erik Pioro | Chicago, IL | Neuromuscular Medicine (Psychiatry & Neurology) | $1,100.00 |
| Michael Weiss | Seattle, WA | Neurology (Psychiatry & Neurology) | $1,100.00 |
| Ghazala Hayat | Saint Louis, MO | Neurology (Psychiatry & Neurology) | $1,100.00 |
| Tulio Bertorini | Memphis, TN | Neurology (Psychiatry & Neurology) | $1,100.00 |
| Said Beydoun | Los Angeles, CA | Clinical Neurophysiology | $1,100.00 |
| Michael Pulley | Jacksonville, FL | Neurology (Psychiatry & Neurology) | $1,060.00 |
| Marinella Galea | Bronx, NY | Spinal Cord Injury Medicine | $800.00 |
Prescribed Exservan?
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.