Dr. Roy Riascos Castaneda, MD
What this data tells you about Dr. Riascos Castaneda
Dr. Roy Riascos Castaneda is a radiation oncology in Galveston, TX, with 19 years in practice. Based on federal Medicare data, Dr. Riascos Castaneda performed 534 Medicare services across 516 unique beneficiaries.
Between the years covered by Open Payments, Dr. Riascos Castaneda received a total of $17,232 from 15 pharmaceutical and/or device companies across 77 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in radiation oncology. The majority of payments are for consulting, which typically reflects recognized clinical expertise sought by manufacturers. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Riascos Castaneda is Very High — reflecting how much public federal data is available about this provider. This is not a quality rating. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.
Medicare Practice Summary
Medicare Utilization ↗Top procedures by volume
Ranked by number of services performed for Medicare patients. Avg. submitted charge is what the provider billed; avg. Medicare payment is what CMS paid.
| Procedure | Volume | Avg. paid | Avg. submitted |
|---|---|---|---|
| CT scan of head/brain, without contrast | 269 | $31 | $221 |
| Ct scan of blood vessels of neck with contrast | 70 | $65 | $455 |
| Ct scan of blood vessels of head with contrast | 60 | $67 | $455 |
| Mri scan of lower spinal canal without contrast | 37 | $52 | $414 |
| Mri scan of upper spinal canal without contrast | 27 | $53 | $399 |
| Mri scan of upper spinal canal before and after contrast | 14 | $89 | $594 |
| Computed tomography (ct) of brain blood flow, volume, and timing of flow analysis with contrast | 13 | $187 | $1,971 |
| Mri scan of brain without contrast | 11 | $47 | $412 |
| Mri scan of brain before and after contrast | 11 | $73 | $594 |
| Mri scan of middle spinal canal before and after contrast | 11 | $86 | $601 |
| Mri scan of lower spinal canal before and after contrast | 11 | $86 | $595 |
Industry Payment Transparency
Open Payments through 2024 ↗Payment profile
Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
Payments by company (2024)
Associated products mentioned in payments ›
The majority of payments (51%) are consulting fees, which typically reflect recognized clinical expertise sought by manufacturers. Total industry engagement is in the top 5% for radiation oncology in TX.
Geographic Context
0.0 mi
Data Sources
| Provider Registry | ✓ NPPES | Weekly updates |
| Medicare Enrollment | ✓ PECOS | Monthly updates |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2024 |
| Disciplinary History | — Not public | N/A |
This provider has data in 4 of 4 available federal datasets, with a Data Coverage level of Very High. This measures how much public data is available about a provider — not how good they are. How we calculate this →
Summary
Dr. Riascos Castaneda is a mixed practice specialist, with moderate Medicare volume, and high industry engagement (consulting-driven, top 5%), with 19 years of practice experience.
This summary is auto-generated from federal data. It describes data availability and patterns — not clinical quality. Read our methodology →
Frequently Asked Questions
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All data on this page is sourced verbatim from public federal records published by the U.S. Centers for Medicare & Medicaid Services (CMS): NPPES ↗, Open Payments ↗, Medicare Provider Utilization ↗, and PECOS. Publication is mandated by the Physician Payments Sunshine Act (§6002 ACA, 42 U.S.C. §1320a-7h) and the Freedom of Information Act.
This page is not medical advice, an endorsement, a recommendation, or a quality rating. The Transparency Score measures data completeness — how much federal information exists for this provider — not clinical performance, patient outcomes, or quality of care. Always verify information directly with the provider and consult a licensed clinician before making medical decisions.
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