Medicare Enrolled
Dr. Ismael Diaz, MD
Family Medicine · Humble, TX
Practice pattern: Clinical Cardiology
— Primarily office-based clinical cardiology
Low-engagement
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. Ismael Diaz is a family medicine specialist in Humble, TX, with 20 years of NPI registration. Based on federal Medicare data, Dr. Diaz performed 2,877 Medicare services across 1,804 unique beneficiaries.
Between the years covered by Open Payments, Dr. Diaz received a total of $9,977 from 57 pharmaceutical and/or device companies across 486 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in family medicine. Most payments are for meals and travel — low-value interactions common across virtually all practicing physicians. 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.
✓ 20 years in practice
▲ Top 8% volume in TX
$9,977 industry payments
Medicare Practice Summary
Medicare Utilization ↗2,877
Medicare services
Top 8% in TX for family medicine
1,804
Unique beneficiaries
$41
Avg. Medicare payment
Medicare patients only (65+ / disabled) · Not a quality rating · How to read this →
~144 Medicare services per year of practice
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. |
530 | $86 | $220 |
| Comprehensive metabolic blood panel A blood test that measures a group of chemicals, including glucose, electrolytes, and kidney and liver function markers. |
339 | $10 | $50 |
| Lipid panel (cholesterol and triglycerides) A blood test that measures cholesterol and triglyceride levels. |
295 | $13 | $60 |
| Complete blood count (CBC) with differential An automated laboratory test that measures the levels of red blood cells, white blood cells, and platelets in the blood, including a breakdown of the different types of white blood cells. |
283 | $8 | $30 |
| Hemoglobin A1c test (diabetes monitoring) A blood test that measures your average blood sugar levels over the past two to three months. |
222 | $9 | $30 |
| Chronic care management, first 20 min/month This service covers the first 20 minutes of clinical staff time directed by a healthcare professional each calendar month to manage chronic conditions. |
181 | $48 | $65 |
| Annual wellness visit, follow-up A follow-up annual wellness visit that includes a personalized prevention plan of service. |
172 | $132 | $230 |
| Thyroid stimulating hormone (TSH) test A blood test that measures the level of thyroid stimulating hormone to evaluate thyroid function. |
151 | $16 | $30 |
| Remote patient monitoring device, 30 days Initial setup of devices for remote monitoring of body functions with daily data transmission or alerts. This service covers the first 30 days of the monitoring period. |
118 | $40 | $130 |
| Chronic care management, additional 20 min/month This service covers an extra 20 minutes of clinical staff time directed by a healthcare professional for managing two or more chronic conditions each calendar month. |
111 | $36 | $80 |
| Remote patient monitoring management, 20 min/month Management based on results from remote vital sign monitoring for the first 20 minutes per calendar month. |
109 | $38 | $105 |
| 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. |
44 | $58 | $150 |
| Vitamin D level test A blood test to measure the amount of Vitamin D-3 in your body. |
40 | $29 | $150 |
| Free thyroxine (T4) test A blood test that measures the level of free thyroxine, a thyroid hormone, in the bloodstream. |
32 | $9 | $50 |
| Office visit, established patient (10-19 min) An office visit for an existing patient lasting 10 to 19 minutes. The visit involves medical evaluation and management of the patient's condition. |
31 | $42 | $90 |
| PSA test (prostate cancer screening) | 30 | $18 | $50 |
| Free T3 thyroid hormone test A blood test that measures the level of free triiodothyronine (T3) hormone in your body. This helps assess how well your thyroid gland is functioning. |
29 | $17 | $30 |
| Flu vaccine, quadrivalent A flu shot containing four strains of the influenza virus to help prevent seasonal influenza infection. |
27 | $75 | $79 |
| Flu vaccine administration This procedure involves the administration of the influenza virus vaccine. It covers the process of delivering the vaccine to the patient. |
27 | $29 | $30 |
| Total testosterone level test A blood test that measures the total amount of testosterone in your body. This hormone is important for various bodily functions in both men and women. |
23 | $25 | $60 |
| Urinalysis, manual A manual laboratory examination of a urine sample to check for various substances and cells. |
18 | $3 | $20 |
| Urine microalbumin test A laboratory test that measures the amount of a specific protein called microalbumin in a urine sample. This analysis helps assess kidney function. |
17 | $6 | $60 |
| LDL cholesterol level test A blood test that measures the amount of low-density lipoprotein (LDL) cholesterol in your blood. LDL is often referred to as "bad" cholesterol. |
17 | $10 | $25 |
| Pneumonia vaccine administration This procedure involves the injection of a vaccine to protect against pneumococcal disease. It is administered by a healthcare provider. |
17 | $31 | $60 |
| Pneumococcal conjugate vaccine (PCV20) An intramuscular injection of the 20-valent pneumococcal conjugate vaccine. It is used to protect against diseases caused by Streptococcus pneumoniae bacteria. |
14 | $261 | $271 |
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. A higher procedure volume generally indicates more experience with that procedure.
Industry Payment Transparency
Open Payments through 2024 ↗$9,977
Total received (2018-2024)
Avg $1,425/year across 7 years
Top 5% in TX for family medicine
57
Companies
486
Individual payments
All payments are legal and publicly reported · Not evidence of wrongdoing · How to interpret →
Payment profile
Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.
Meals & Travel
Food, beverages, travel, and lodging — typically low-value
$8,748 (87.7%)
Consulting
Expert advisory fees, typically reflecting recognized clinical expertise
$1,230 (12.3%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$1,438
2023
$1,174
2022
$1,288
2021
$1,976
2020
$942
2019
$1,475
2018
$1,684
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
AstraZeneca Pharmaceuticals LP
$1,721
Novo Nordisk Inc
$1,364
Biohaven Pharmaceuticals, Inc.
$1,230
Lilly USA, LLC
$778
SANOFI-AVENTIS U.S. LLC
$480
Merz North America, Inc.
$452
Boehringer Ingelheim Pharmaceuticals, Inc.
$368
Merck Sharp & Dohme Corporation
$344
Bayer HealthCare Pharmaceuticals Inc.
$306
Janssen Pharmaceuticals, Inc
$288
GlaxoSmithKline, LLC.
$231
Bayer Healthcare Pharmaceuticals Inc.
$202
AbbVie Inc.
$162
Allergan, Inc.
$152
Amgen Inc.
$136
Radius Health, Inc.
$135
ABBVIE INC.
$113
Astellas Pharma US Inc
$104
PFIZER INC.
$94
Medtronic, Inc.
$80
Exact Sciences Corporation
$78
Novartis Pharmaceuticals Corporation
$70
Janssen Biotech, Inc.
$65
Inspire Medical Systems, Inc.
$65
Corcept Therapeutics
$58
IDORSIA PHARMACEUTICALS US INC
$52
Kowa Pharmaceuticals America, Inc.
$50
Allergan Inc.
$49
Abbott Laboratories
$48
Amarin Pharma Inc.
$48
Endo Pharmaceuticals Inc.
$46
Salix Pharmaceuticals, a division of Bausch Health US, LLC
$44
Teva Pharmaceuticals USA, Inc.
$36
Amneal Pharmaceuticals LLC
$34
BIOTRONIK INC.
$34
Bard Peripheral Vascular, Inc.
$34
Horizon Therapeutics plc
$33
Medtronic USA, Inc.
$31
JAZZ PHARMACEUTICALS INC.
$31
Biohaven Pharmaceutical Holding Company Ltd.
$25
Axsome Therapeutics, Inc.
$25
Alexion Pharmaceuticals, Inc.
$25
Celgene Corporation
$23
Takeda Pharmaceuticals U.S.A., Inc.
$22
Merck Sharp & Dohme LLC
$20
Dexcom, Inc.
$19
SANOFI PASTEUR INC.
$19
E.R. Squibb & Sons, L.L.C.
$19
Sun Pharmaceutical Industries Inc.
$18
Tolmar, Inc.
$17
IBSA Pharma Inc.
$17
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)
$16
Kyowa Kirin, Inc.
$14
Mannkind Corporation
$14
AbbVie, Inc.
$13
ARBOR PHARMACEUTICALS, INC.
$12
Acerus Pharmaceuticals Corporation
$11
Top 3 companies account for 43.2% of total payments
Associated products mentioned in payments ›
AFREZZA · AIRSUPRA · AJOVY · ANORO · AREXVY · AVEED · Axium INS DRG IPG · BAQSIMI · BASAGLAR · BELSOMRA · BREO · BREZTRI · BREZTRI AEROSPHERE · BYDUREON · CHANTIX · COSENTYX · Cologuard Collection Kit · Crysvita · Dexcom G6 Transmitter · ELIGARD · ELIQUIS · EMGALITY · ENTRESTO · Edarbi · Enbrel · FARXIGA · FASENRA · FLUMIST QUADRIVALENT · FLUZONE HIGH-DOSE · FreeStyle Libre · HUMALOG · HUMULIN · INSPIRE · INTELLIS · INVOKANA · JANUVIA · JARDIANCE · Kerendia · Korlym · LifeVest · Livalo · MOUNJARO · MYRBETRIQ · Mahurkar · Myrbetriq · NURTEC ODT · Natesto · Otezla · Ozempic · PENNSAID · PRADAXA · PREVNAR 20 · PROCLAIM · Prolia · QULIPTA · QUVIVIQ · RIOMET ER · RYBELSUS · Repatha · Rybelsus · SHINGRIX · SIMPONI ARIA · SOLIQUA 100/33 · STEGLATRO · STEGLUJAN · STELARA · STRENSIQ · SUNOSI · SYMBICORT · SYNTHROID · Saxenda · Sunosi · Synthroid · TEPEZZA · TOUJEO · TRADJENTA · TRELEGY ELLIPTA · TRULICITY · TZIELD · Tirosint · Trintellix · Tymlos · UBRELVY · UNITHROID · VRAYLAR · Vascepa · Veozah · Victoza · XARELTO · XIAFLEX · XIFAXAN · Xeomin · ZEPBOUND
Should you be concerned? Payments from pharmaceutical and device companies are legal and common — 57% of U.S. physicians receive at least one. They often reflect legitimate consulting, research, or education. 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 →
Most payments (88%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians. Total industry engagement is in the top 5% for family medicine in TX.
Equivalent to $347 per 100 Medicare services performed
Geographic Context
Family medicine physicians within 10 mi
1,003
Per 100K population
21.1
County median income
$73,104
Nearest hospital
KINGWOOD PINES HOSPITAL
4.6 mi
4.6 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 8% in TX), with low-engagement industry engagement in the top 5% of TX peers, with 20 years of NPI registration.
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 office visit, established patient (30-39 min)?
Based on Medicare claims data, Dr. Diaz performed 530 office visit, established patient (30-39 min) services. Research suggests that higher procedure volume is often associated with better outcomes, particularly for complex procedures. Note that Medicare data only captures patients aged 65 and older, so the total practice volume across all patients is likely higher.
Does Dr. Diaz receive payments from pharmaceutical companies?
Yes. Dr. Diaz received a total of $9,977 from 57 companies across 486 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common among physicians — 57% of all U.S. physicians receive at least one industry payment. 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 family medicine physicians in Humble?
Dr. Diaz's average Medicare payment per service is $41. 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 a long track record of practice, Medicare participation, and industry disclosure. 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?
Each data source has its own update cycle. Provider registry data (NPPES) is updated weekly. Medicare enrollment (PECOS) is updated monthly. Medicare practice data has a ~2 year lag — the most recent available is typically 2 years prior. Industry payment data (Open Payments) is published annually, usually in June, covering the prior calendar year. We display the data date prominently on each section so you always know how current it is. See our data freshness policy →
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About this page
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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