Medicare Enrolled
Dr. Jose Diaz, M.D.
Neurology · Katy, 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. Jose Diaz is a neurology specialist in Katy, TX, with 21 years of NPI registration. Based on federal Medicare data, Dr. Diaz performed 658 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 $88,272 from 93 pharmaceutical and/or device companies across 1412 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.
✓ 21 years of NPI registration
▲ Top 42% volume in TX
$88,272 industry payments
Medicare Practice Summary — 2023
Medicare Utilization ↗658
Medicare services
Top 42% in TX for neurology
Not available
Unique patients (not deduplicated)
$89
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 |
|---|---|---|---|
| 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. |
405 | $89 | $256 |
| 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. |
82 | $51 | $182 |
| Electromyography of arm or leg muscles A test that measures the electrical activity in the muscles of the arm or leg using a needle electrode. It helps evaluate the health of muscles and the nerve cells that control them. |
81 | $64 | $157 |
| Office visit, established patient, complex (40-54 min) An office or outpatient visit for an existing patient lasting between 40 and 54 minutes. This level of service is determined by the total time spent on the date of the encounter. |
45 | $140 | $360 |
| 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. |
27 | $126 | $336 |
| Nerve conduction studies, 13 or more A diagnostic test that measures how well nerves send electrical signals. This code applies when 13 or more individual nerve studies are performed. |
18 | $184 | $460 |
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.
Industry Payment Transparency
Open Payments through 2024 ↗$88,272
Total received (2018-2024)
Avg $12,610/year across 7 years
Top 7% in TX for neurology
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
93
Companies
1,412
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
$3,364
2023
$3,816
2022
$3,564
2021
$7,481
2020
$7,100
2019
$37,861
2018
$25,086
Payments by company (2024)
UCB, Inc.
$476
Alexion Pharmaceuticals, Inc.
$247
PFIZER INC.
$202
SK Life Science, Inc.
$192
ABBVIE INC.
$190
Teva Pharmaceuticals USA, Inc.
$175
Takeda Pharmaceuticals U.S.A., Inc.
$166
Lilly USA, LLC
$163
ACADIA Pharmaceuticals Inc
$153
Abbott Laboratories
$137
Genentech USA, Inc.
$134
EMD Serono, Inc.
$116
MicroVention, Inc.
$98
Boston Scientific Corporation
$88
Novartis Pharmaceuticals Corporation
$88
Sumitomo Pharma America, Inc.
$86
Otsuka America Pharmaceutical, Inc.
$64
Grifols USA, LLC
$63
Eisai Inc.
$63
ARGENX US, INC.
$61
Aucta Pharmaceuticals, Inc.
$54
Biogen, Inc.
$53
HOSPIRA, INC.
$51
Lundbeck LLC
$44
Neurelis, Inc.
$43
Azurity Pharmaceuticals, Inc.
$38
IDORSIA PHARMACEUTICALS US INC
$35
Neurocrine Biosciences, Inc.
$27
LivaNova USA, Inc.
$26
Medtronic, Inc.
$17
TG Therapeutics, Inc.
$13
Top 3 companies account for 27.5% of 2024 payments
All-time payments by company (2018-2024) ›
Teva Pharmaceuticals USA, Inc.
$25,273
GENZYME CORPORATION
$23,971
EMD Serono, Inc.
$21,649
UCB, Inc.
$1,580
Novartis Pharmaceuticals Corporation
$1,029
Genentech USA, Inc.
$1,023
SK Life Science, Inc.
$940
PFIZER INC.
$771
ACADIA Pharmaceuticals Inc
$706
Abbott Laboratories
$661
Takeda Pharmaceuticals U.S.A., Inc.
$636
Biogen, Inc.
$597
Alexion Pharmaceuticals, Inc.
$596
AbbVie Inc.
$535
Lilly USA, LLC
$480
Sunovion Pharmaceuticals Inc.
$474
ABBVIE INC.
$449
Neurelis, Inc.
$322
Neurocrine Biosciences, Inc.
$298
Amgen Inc.
$270
Boston Scientific Corporation
$264
Grifols USA, LLC
$260
Supernus Pharmaceuticals, Inc.
$251
Sumitomo Pharma America, Inc.
$242
Lundbeck LLC
$223
Acorda Therapeutics, Inc
$198
Eisai Inc.
$196
JAZZ PHARMACEUTICALS INC.
$190
Janssen Pharmaceuticals, Inc
$190
Adamas Pharmaceuticals, Inc.
$165
CSL Behring
$164
Mallinckrodt Hospital Products Inc.
$162
Upsher-Smith Laboratories LLC
$143
Mallinckrodt LLC
$128
Amneal Pharmaceuticals LLC
$122
Akcea Therapeutics, Inc.
$122
HARMONY BIOSCIENCES LLC
$119
Biohaven Pharmaceutical Holding Company Ltd.
$116
Medtronic, Inc.
$115
Mallinckrodt Enterprises LLC
$110
ARGENX US, INC.
$108
Avanir Pharmaceuticals, Inc.
$104
ARBOR PHARMACEUTICALS, INC.
$104
Kyowa Kirin, Inc.
$99
MicroVention, Inc.
$98
AstraZeneca Pharmaceuticals LP
$94
Harmony Biosciences LLC
$89
EISAI INC.
$87
Octapharma USA, Inc.
$83
IDORSIA PHARMACEUTICALS US INC
$81
Horizon Therapeutics plc
$72
UPSHER-SMITH LABORATORIES LLC
$66
AQUESTIVE THERAPEUTICS, INC.
$66
Biohaven Pharmaceuticals, Inc.
$65
Otsuka America Pharmaceutical, Inc.
$64
GE HEALTHCARE
$63
Endo Pharmaceuticals Inc.
$57
Avion Pharmaceuticals
$57
Bayer HealthCare Pharmaceuticals Inc.
$57
Celgene Corporation
$54
Aucta Pharmaceuticals, Inc.
$54
Medtronic USA, Inc.
$53
HOSPIRA, INC.
$51
Allergan, Inc.
$48
Collegium Pharmaceutical, Inc.
$47
TG THERAPEUTICS, INC.
$46
Promius Pharma LLC
$45
ANI Pharmaceuticals, Inc.
$40
E.R. Squibb & Sons, L.L.C.
$39
LivaNova USA, Inc.
$39
CATALYST PHARMACEUTICALS, INC.
$38
Azurity Pharmaceuticals, Inc.
$38
Axsome Therapeutics, Inc.
$30
Assertio Therapeutics, Inc.
$30
GE HealthCare
$28
Vertical Pharmaceuticals, LLC
$27
Exeltis, USA Inc.
$24
Aprecia Pharmaceuticals, LLC
$24
BOSTON SCIENTIFIC CORPORATION
$24
Nevro Corp.
$23
GRT US Holding, Inc.
$23
Corium, LLC
$20
Amarin Pharma Inc.
$19
IMPEL PHARMACEUTICALS INC.
$18
ASSERTIO THERAPEUTICS, Inc.
$18
Impax Laboratories, Inc.
$17
Zyla Life Sciences
$16
InSightec,Inc
$16
Jazz Pharmaceuticals Inc.
$15
BANNER LIFE SCIENCES, LLC
$14
TG Therapeutics, Inc.
$13
Currax Pharmaceuticals LLC
$13
NOVARTIS PHARMACEUTICALS CORPORATION
$11
Top 3 companies account for 80.3% of all-time payments
Associated products mentioned in payments ›
ACTHAR · ACTIVA · ACTIVA PC · ADLARITY · AIMOVIG · AJOVY · AMPYRA · AMYVID · ANDEXXA · APTIOM · AUBAGIO · AUSTEDO · AVONEX · AZUR CX DETACHABLE · Aimovig · Austedo XR · BAFIERTAM · BRILINTA · BRIUMVI · Belbuca · Betaseron · Briviact · CAMBIA · CHANTIX · COMIRNATY · CONTRAVE · COPAXONE · DUOPA · Dayvigo · Dhivy · ELYXYB - celecoxib · EMGALITY · Exablate · FIRDAPSE · Fintepla · Fycompa · GAMMAGARD · GENERAL DBS · GENERAL - DBS · GILENYA · GOCOVRI · Gamunex-C · Gralise · HORIZANT · HYQVIA · Hizentra · Horizant · INBRIJA · INFINITY · INGREZZA · Infinity DBS Pulse Generators · KESIMPTA · KYNMOBI · LEMTRADA · LYRICA · Leqembi · MAVENCLAD · MAYZENT · Mavenclad · Motpoly XR · NASCOBAL · NEXVIAZYME · NORTHERA · NOURIANZ · NUEDEXTA · NUPLAZID · NURTEC ODT · Nayzilam · Neupro · OCREVUS · OCTAGAM IMMUNE GLOBULIN (HUMAN) · OSMOLEX ER · OXTELLAR XR · Ocrevus · Ocrevus Zunovo · Omnia · Ongentys · PANZYGA · PERCEPT PC BRAINSENSE · PLEGRIDY · PURIFIED CORTROPHIN GEL · Ponvory · QUDEXY XR Topiramate Extended Release Capsules · QULIPTA · QUVIVIQ · Qutenza · RELEXXII · REXULTI · RYTARY · Rebif · Rystiggo · SOLIRIS · SPRIX · SUNOSI · SYMPAZAN · Spritam · Sunosi · TECFIDERA · TEGSEDI · TOSYMRA · TOSYMRA SUMATRIPTAN NASAL SPRAY · TROKENDI XR · TYSABRI · Trudhesa · UBRELVY · ULTOMIRIS · UPLIZNA · VALTOCO · VNS THERAPY SENTIVA MODEL 1000 GENERATOR · VNS Therapy · VRAYLAR · VUMERITY · VYEPTI · VYVGART · VYVGART HYTRULO · Vascepa · Vercise · Vimpat · WAKIX · WATCHMAN · Wakix · XARELTO · XCOPRI · XYREM · XYWAV · Xyrem · ZEMBRACE SYMTOUCH · ZEPOSIA · ZOMIG · Zembrace · Zipsor
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
Neurologists in nearby ZIP areas
332
County median income
$73,104
Nearest hospital to ZIP centroid (approximate)
OCEANS BEHAVIORAL HOSPITAL OF KATY
0.0 mi
0.0 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 moderate Medicare volume, with 21 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 office visit, established patient (30-39 min)?
Based on Medicare claims data, Dr. Diaz performed 405 office visit, established patient (30-39 min) 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 $88,272 from 93 companies across 1,412 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 neurologists in Katy?
Dr. Diaz's average Medicare payment per service is $89. 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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