Dr. Roberto Diaz, MD
What this data tells you about Dr. Diaz
Dr. Roberto Diaz is an anesthesiology in San Antonio, TX, with 15 years in practice. Based on federal Medicare data, Dr. Diaz performed 6,824 Medicare services across 1,757 unique beneficiaries.
Between the years covered by Open Payments, Dr. Diaz received a total of $67,686 from 60 pharmaceutical and/or device companies across 483 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in anesthesiology. The majority of payments are for speaking programs and promotional activities, reflecting participation in industry-sponsored events. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Diaz 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 |
|---|---|---|---|
| Dexamethasone injection (steroid) | 2,127 | $0 | $1 |
| Office visit, established patient (30-39 min) | 994 | $85 | $319 |
| Injection, midazolam hydrochloride, per 1 mg | 670 | $0 | $1 |
| Office visit, established patient (20-29 min) | 450 | $56 | $218 |
| Betamethasone steroid injection | 397 | $5 | $21 |
| Drug screening test | 359 | $58 | $187 |
| Drug test(s), definitive, utilizing (1) drug identification methods able to identify individual drugs and distinguish between structural isomers (but not necessarily stereoisomers), including, but not limited to gc/ms (any type, single or tandem) and lc/ms | 352 | $188 | $600 |
| Electronic analysis reprogramming and refill of spinal canal drug infusion pump by physician | 243 | $65 | $293 |
| Contrast dye for imaging, lower concentration | 243 | $0 | $10 |
| Ultrasonic guidance for needle placement | 239 | $43 | $169 |
| Assessment of emotional or behavioral problems | 102 | $3 | $15 |
| Use of a drug to induce depression of consciousness by physician performing a procedure, each additional 15 minutes | 83 | $8 | $32 |
| Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes | 79 | $37 | $155 |
| Electronic analysis and reprogramming of spinal canal drug infusion pump | 76 | $33 | $134 |
| Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, single level | 76 | $226 | $907 |
| Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, each additional level | 59 | $103 | $391 |
| New patient office visit (45-59 min) | 55 | $113 | $483 |
| Injection of anesthetic or steroid into joint between lower spine and hip bone using imaging guidance | 30 | $157 | $605 |
| Injection of substance into middle or upper spine canal using imaging guidance | 28 | $189 | $762 |
| Joint injection, major joint | 26 | $47 | $239 |
| Destruction of lower or sacral spinal facet joint nerves using imaging guidance, each additional facet joint | 26 | $255 | $957 |
| Fluoroscopic guidance for needle placement | 26 | $78 | $315 |
| Injection of lower or sacral spine facet joint using imaging guidance, single level | 20 | $201 | $766 |
| Injection of trigger points, 3 or more muscles | 19 | $43 | $188 |
| Injection of lower or sacral spine facet joint using imaging guidance, second level | 19 | $103 | $394 |
| Destruction of lower or sacral spinal facet joint nerves using imaging guidance, single facet joint | 14 | $466 | $1,834 |
| Insertion of programmable spinal canal drug infusion pump | 12 | $203 | $1,130 |
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 (88%) are for speaking programs and promotional activities, which reflect participation in industry-sponsored educational or marketing events. This is common in anesthesiology and does not inherently indicate bias, but patients may wish to be aware. Total industry engagement is in the top 1% for anesthesiology in TX.
Geographic Context
6.7 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. Diaz is a clinical cardiology specialist, with above-average Medicare volume (top 1% in TX), and high industry engagement (speaking/promotional, top 1%), with 15 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
Is Dr. Diaz experienced with dexamethasone injection (steroid)?
Does Dr. Diaz receive payments from pharmaceutical companies?
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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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