Medicare Enrolled
Dr. Roberto Diaz, MD
Anesthesiology · San Antonio, TX
Practice pattern: Clinical Cardiology
— Primarily office-based clinical cardiology
Very High
DATA COVERAGE
Data in 4 of 4 federal sources
Measures public federal data availability — not provider quality
Informational, not a quality rating.
This page presents federal public records about Dr. Diaz from CMS (NPPES, Open Payments, Medicare Provider Utilization, PECOS). It is not medical advice, an endorsement, or a judgment of clinical quality. Always consult the provider directly and a licensed clinician for medical decisions. Read methodology →
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What this data tells you about Dr. Diaz
Dr. Roberto Diaz is an anesthesiology specialist in San Antonio, TX, with 16 years of NPI registration. Based on federal Medicare data, Dr. Diaz performed 6,824 Medicare services in 2023. These records do not provide a deduplicated patient total.
Between the years covered by Open Payments, Dr. Diaz received a total of $67,686 from 60 pharmaceutical and/or device companies across 483 payment records. A record can group multiple payments. These transfers are publicly reported through CMS Open Payments. Disclosure alone does not establish their effect on care. A reliable breakdown by payment category is not available in this snapshot. 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. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.
✓ 16 years of NPI registration
▲ Top 1% volume in TX
$67,686 industry payments
Medicare Practice Summary — 2023
Medicare Utilization ↗6,824
Medicare services
Top 1% in TX for anesthesiology
Not available
Unique patients (not deduplicated)
$43
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
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) An injection of dexamethasone sodium phosphate, a corticosteroid medication, administered in a dose of 1 milligram. |
2,127 | $0 | $1 |
| Office visit, established patient (30-39 min) A follow-up office visit for an existing patient lasting between 30 and 39 minutes. The visit involves medical evaluation and management of the patient's condition. |
994 | $85 | $319 |
| Midazolam injection, per 1 mg Administration of midazolam hydrochloride, a sedative medication, measured in 1 mg increments. |
670 | $0 | $1 |
| Office visit, established patient (20-29 min) An office visit for an existing patient lasting between 20 and 29 minutes. The visit involves medical evaluation and management of the patient's condition. |
450 | $56 | $218 |
| Betamethasone steroid injection An injection containing a combination of betamethasone acetate and betamethasone sodium phosphate. |
397 | $5 | $21 |
| Drug screening test A laboratory test that uses a chemistry analyzer to detect the presence of drugs in a sample. |
359 | $58 | $187 |
| Definitive drug test using GC/MS or LC/MS A definitive drug test that identifies specific drugs and distinguishes between structural isomers using advanced methods like GC/MS or LC/MS. |
352 | $188 | $600 |
| Spinal drug pump reprogramming and refill A physician electronically adjusts the settings of a spinal drug infusion pump and refills its medication reservoir. |
243 | $65 | $293 |
| Contrast dye for imaging, lower concentration | 243 | $0 | $10 |
| Ultrasound guidance for needle placement Use of ultrasound imaging to guide the precise placement of a needle during a medical procedure. |
239 | $43 | $169 |
| Assessment of emotional or behavioral problems An evaluation to identify and understand emotional or behavioral issues. This process involves reviewing symptoms and behaviors to determine the nature of the concerns. |
102 | $3 | $15 |
| Additional sedation, per 15 minutes Administration of a drug to deepen sedation during a procedure. This code covers each additional 15-minute increment of sedation beyond the initial period. |
83 | $8 | $32 |
| Sedation by physician, initial 15 minutes Administration of a drug to induce depression of consciousness by the physician performing a procedure. This code covers the initial 15 minutes of sedation for patients aged 5 years or older. |
79 | $37 | $155 |
| Electronic analysis and reprogramming of spinal drug pump This procedure involves electronically analyzing and reprogramming a spinal canal drug infusion pump. It does not include the surgical insertion or removal of the device. |
76 | $33 | $134 |
| Sacral spine nerve root injection with imaging guidance An injection of anesthetic and/or steroid medication into a sacral spine nerve root. The procedure uses imaging guidance to ensure accurate placement. |
76 | $226 | $907 |
| Additional sacral spine nerve root injection with imaging An injection of anesthetic and/or steroid medication into an additional sacral spine nerve root level, guided by imaging. |
59 | $103 | $391 |
| New patient office visit (45-59 min) An initial office visit for a new patient lasting between 45 and 59 minutes. This code covers the total time spent by the physician or qualified healthcare professional on the date of the encounter. |
55 | $113 | $483 |
| Injection of anesthetic or steroid into sacroiliac joint with imaging guidance This procedure involves injecting an anesthetic or steroid medication into the joint connecting the lower spine and hip bone. Imaging guidance is used to ensure accurate placement of the injection. |
30 | $157 | $605 |
| Spinal injection with imaging guidance A procedure where medication is injected into the middle or upper part of the spinal canal. Imaging technology is used to guide the needle to the correct location. |
28 | $189 | $762 |
| Joint injection, major joint Removal of fluid from a large joint and/or injection of medication into the joint space. |
26 | $47 | $239 |
| Facet joint nerve destruction, additional joint This procedure uses imaging guidance to destroy nerves in an additional lower or sacral spinal facet joint. |
26 | $255 | $957 |
| Fluoroscopic guidance for needle placement Use of real-time X-ray imaging to guide the precise placement of a needle during a medical procedure. |
26 | $78 | $315 |
| Spine facet joint injection with imaging guidance, single level An injection is administered into a single facet joint of the lower or sacral spine while using imaging guidance to ensure accurate placement. |
20 | $201 | $766 |
| Trigger point injection, 3 or more muscles Injection of medication into three or more specific muscle trigger points to relieve pain. |
19 | $43 | $188 |
| Facet joint injection, second level, with imaging guidance An injection into a lower or sacral spine facet joint using imaging guidance for the second level treated. |
19 | $103 | $394 |
| Facet joint nerve destruction, single joint A procedure to destroy nerves in a single lower or sacral spinal facet joint using imaging guidance to target pain signals. |
14 | $466 | $1,834 |
| Insertion of programmable spinal drug infusion pump A surgical procedure to implant a programmable pump into the spinal canal for delivering medication. |
12 | $203 | $1,130 |
How to read this data: This reflects Medicare patients only (typically 65+). Payment amounts are what Medicare paid the provider, not your out-of-pocket cost. These counts do not measure clinical quality or years of experience.
0.2% high complexity
57.9% medium
41.9% routine
Industry Payment Transparency
Open Payments through 2024 ↗$67,686
Total received (2018-2024)
Avg $9,669/year across 7 years
Top 1% in TX for anesthesiology
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
60
Companies
483
Payment records
Payments are publicly reported; disclosure does not establish legality · Not evidence of wrongdoing · How to interpret →
Payment categories are unavailable while the source breakdown is being rebuilt. Company and year totals do not identify how much belongs to each category.
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$2,216
2023
$1,326
2022
$4,596
2021
$4,710
2020
$3,595
2019
$19,257
2018
$31,985
Payments by company (2024)
Abbott Laboratories
$583
Collegium Pharmaceutical, Inc.
$215
Boston Scientific Corporation
$212
ABBVIE INC.
$188
Saluda Medical Americas, Inc.
$152
Amgen Inc.
$132
BIOTISSUE HOLDINGS INC.
$124
Genentech USA, Inc.
$120
Nevro Corp.
$95
Medtronic, Inc.
$92
SI-BONE, INC.
$92
Vertos Medical, Inc.
$63
SPR Therapeutics, Inc
$59
Spinal Simplicity, LLC
$39
Averitas Pharma Inc.
$27
BIOTRONIK NRO, Inc.
$24
Top 3 companies account for 45.6% of 2024 payments
All-time payments by company (2018-2024) ›
Medtronic USA, Inc.
$52,124
Medtronic, Inc.
$7,615
Abbott Laboratories
$1,371
Boston Scientific Corporation
$506
Collegium Pharmaceutical, Inc.
$447
Allergan Inc.
$399
ABBVIE INC.
$353
Nevro Corp.
$324
Almatica Pharma LLC
$290
Genentech USA, Inc.
$285
Novartis Pharmaceuticals Corporation
$239
Salix Pharmaceuticals, a division of Bausch Health US, LLC
$225
TerSera Therapeutics LLC
$192
Amgen Inc.
$185
BIOTISSUE HOLDINGS, INC.
$176
Allergan, Inc.
$170
Daiichi Sankyo Inc.
$165
AbbVie Inc.
$163
BOSTON SCIENTIFIC CORPORATION
$162
Apellis Pharmaceuticals, Inc.
$156
Saluda Medical Americas, Inc.
$152
SI-BONE, INC.
$127
BIOTISSUE HOLDINGS INC.
$124
Scilex Pharmaceuticals Inc.
$120
Avanos Medical
$114
Bausch & Lomb, a division of Bausch Health US, LLC
$113
BioDelivery Sciences International, Inc.
$98
Hikma Pharmaceuticals USA
$90
Relievant Medsystems, Inc.
$75
TissueTech, Inc.
$74
SI-BONE, Inc.
$74
Vertos Medical, Inc.
$63
SPR Therapeutics, Inc
$59
Assertio Therapeutics, Inc.
$57
Pernix Therapeutics Holdings, Inc.
$54
Sentynl Therapeutics, Inc.
$53
Flexion Therapeutics, Inc.
$52
ARBOR PHARMACEUTICALS, INC.
$46
GRT US Holding, Inc.
$44
Jazz Pharmaceuticals Inc.
$42
Purdue Pharma L.P.
$41
Avanir Pharmaceuticals, Inc.
$40
Spinal Simplicity, LLC
$39
RedHill Biopharma Inc.
$36
SCILEX PHARMACEUTICALS INC.
$35
Shionogi Inc
$34
MML US, Inc.
$32
Averitas Pharma Inc.
$27
PAINTEQ LLC
$25
Flowonix Medical Incorporated
$24
BIOTRONIK NRO, Inc.
$24
PFIZER INC.
$23
Amneal Pharmaceuticals LLC
$21
Novo Nordisk Inc
$20
Bioventus LLC
$17
Stryker Corporation
$16
Vertiflex, Inc.
$14
Fidia Pharma USA Inc.
$14
IBSA Pharma Inc.
$13
BIODELIVERY SCIENCES INTERNATIONAL, INC.
$12
Top 3 companies account for 90.3% of all-time payments
Associated products mentioned in payments ›
ACCURIAN · ADAPTIVESTIM · AIMOVIG · ASCENDA · AXIUM · Accurian · Aimovig · Axium INS DRG IPG · Axium Sheath Braided DRG · BELBUCA · BEOVU · BOTOX · BUNAVAIL 2.1 mg 30-count box · Belbuca · ENTRESTO · ETERNA · EVENITY · Evoke · FLECTOR · GELSYN 3 · GENERAL PAIN MANAGEMENT · GRALISE · General - Pain Management · General - Vascular Access · Gralise · HA MINUTEMAN G3-R · HYMOVIS · Horizant · IFUSE IMPLANT · INTELLIS · INTELLIS ADAPTIVESTIM · IONICRF · IVS - IVAS · Intracept · Kloxxado · LICART · LINZESS · LIORESAL (BACLOFEN) · LYRICA · Levorphanol · MYSTIM · Morphabond ER · Movantik · NAPRELAN · NUEDEXTA · Nucynta · ON-Q* PUMP AND ACCESSORIES · OSTEOCOOL RF ABLATION · Omnia · Ozempic · PAINTEQ · PRIALT · PROCLAIM · PRODIGY · PROKERA · Penta SCS Leads · Prialt · Proclaim Family of SCS IPGs · Proclaim IPG · Prodigy Family of SCS IPGs · Prokera · Prometra II · Prospera · Protege Family of SCS IPGs · QULIPTA · QUTENZA · Qutenza · RELISTOR · RELISTOR ORAL · RESTORE · ReActiv8 · Ryaltris · SPECTRA WAVEWRITER · SPRINT PNS System · STELLARIS PC · SUPERION · SYMPROIC · SYNCHROMED · SYNCHROMEDII · Senza · Superion · Superion ISS · Superion Indirect Decompression System · Syfovre · Symproic · TEPEZZA · UBRELVY · VANTA ADAPTIVESTIM · VECTRIS · VIBERZI · VRAYLAR · Vabysmo · WaveWriter Alpha Prime 16 · XTAMPZA · Xofluza · Xtampza ER · ZOHYDRO ER · ZTLido · ZTLido 30 POUCH in 1 CARTON 1 PATCH in 1 POUCH · Zilretta · iFuse Implant · mild Device Kit
Should you be concerned? Industry payments are disclosed through CMS Open Payments. Disclosure alone does not establish their purpose, legality, or effect on care. What matters is whether a recommended drug or device appears in your doctor's payment records. If so, consider asking your doctor about it. How to interpret this data →
Geographic Context
Anesthesiologists in nearby ZIP areas
463
County median income
$70,571
Nearest hospital to ZIP centroid (approximate)
WESTOVER HILLS BAPTIST HOSPITAL
6.7 mi
6.7 mi
Data Sources
| Provider Registry | ✓ NPPES | NPPES snapshot; verify current record |
| Medicare Enrollment | ✓ PECOS | PECOS snapshot |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2024 |
| Disciplinary History | — Not included | N/A |
This provider has data in 4 of 4 available federal datasets, with a Data Coverage level of Very High. This reflects how much public data is available about a provider. How we calculate this →
Summary
Dr. Diaz is a clinical cardiology specialist, with above-average Medicare volume (top 1% in TX), with 16 years of NPI registration.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
Is Dr. Diaz experienced with dexamethasone injection (steroid)?
Based on Medicare claims data, Dr. Diaz performed 2,127 dexamethasone injection (steroid) services. These records cover Medicare fee-for-service activity, including eligible younger beneficiaries; they do not measure total practice volume or clinical quality.
Does Dr. Diaz receive payments from pharmaceutical companies?
Yes. Dr. Diaz received a total of $67,686 from 60 companies across 483 payment records. A record can group multiple payments. These transfers are publicly disclosed through CMS Open Payments. Disclosure alone does not establish their legality or effect on care. Patients may wish to ask their doctor about these relationships, especially if a recommended drug or device appears in the payment records.
How do Dr. Diaz's costs compare to other anesthesiologists in San Antonio?
Dr. Diaz's average Medicare payment per service is $43. Note that these figures represent what Medicare pays, not your out-of-pocket cost, which depends on your specific insurance plan and deductible. Procedure-level data above shows both what was submitted and what Medicare paid for each service type.
What does Data Coverage mean?
Data Coverage (currently Very High for Dr. Diaz) measures how much public federal data is available about a provider. It is not a quality rating. A "Very High" or "High" level means the provider has data across multiple federal sources (NPPES, PECOS, Medicare Utilization, Open Payments), indicating the presence of registry, enrollment, activity or payment records, not verified experience or clinical quality. A "Low" or "Moderate" level may simply mean the provider is newer, does not see Medicare patients, or has not received any industry payments — none of which are inherently negative. Read our full methodology →
Is this data up to date?
Source publication dates and the snapshots loaded on this site can differ. Rebuilding a page does not refresh its source records. Check the Medicare reporting year and the payment interval shown above; consult the linked official sources for newer releases and current registry details. See our data freshness policy →
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About this page
This page combines public CMS records with calculated summaries and explanatory procedure labels. These transformations are not verbatim federal records. Sources: 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. Data Coverage reflects 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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