Spectrum Pharmaceuticals INC.
Reporting payments is a legal requirement; large totals often reflect large product portfolios.
$363Kgeneral payments (2019-2025)
$14Kresearch payments (2019-2025)
1,885clinicians 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
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
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.
| Clinician | Location | Specialty | General payments (2019-2025) |
|---|---|---|---|
| Jeffrey Vacirca | Port Jefferson Station, NY | Hematology & Oncology | $130,150.28 |
| Jhanelle Gray | Tampa, FL | Internal Medicine | $22,024.38 |
| Lee Schwartzberg | Reno, NV | Medical Oncology | $19,876.31 |
| Shanta Chawla | Irvine, CA | Internal Medicine | $17,409.52 |
| Matthew Carlson | Mckinney, TX | Gynecologic Oncology | $9,591.88 |
| Joseph Mace | St Petersburg, FL | Medical Oncology | $7,889.00 |
| David Rizzieri | Charlotte, NC | Medical Oncology | $7,760.71 |
| Matthew Lunning | Omaha, NE | Medical Oncology | $5,894.37 |
| Lauren Pinter-Brown | Los Angeles, CA | Hematology & Oncology | $5,610.04 |
| Cyrus Khan | Pittsburgh, PA | Hematology & Oncology | $5,209.37 |
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.