Medicare Enrolled
Dr. Charlie Gnaim, M.D.
Interventional Cardiology · Humble, 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. Gnaim 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 →
Are you Dr. Gnaim?
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What this data tells you about Dr. Gnaim
Dr. Charlie Gnaim is an interventional cardiology specialist in Humble, TX, with 19 years of NPI registration. Based on federal Medicare data, Dr. Gnaim performed 1,843 Medicare services in 2023. These records do not provide a deduplicated patient total.
Between the years covered by Open Payments, Dr. Gnaim received a total of $62,181 from 50 pharmaceutical and/or device companies across 455 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. Gnaim 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.
✓ 19 years of NPI registration
▲ 1,843 Medicare services
$62,181 industry payments
Medicare Practice Summary — 2023
Medicare Utilization ↗1,843
Medicare services
Bottom 38% in TX for interventional cardiology
Lower Medicare volume may reflect subspecialty focus, hospital-based work, or a higher share of non-Medicare patients.
Not available
Unique patients (not deduplicated)
$93
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. |
720 | $97 | $283 |
| Electrocardiogram (EKG), 12-lead A standard heart rhythm test using at least 12 leads to record electrical activity. A healthcare provider interprets the results and provides a written report. |
498 | $11 | $44 |
| 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. |
137 | $63 | $198 |
| EKG interpretation and report A standard electrocardiogram test that records the heart's electrical activity using at least 12 leads. The service includes a professional interpretation of the results and a written report. |
91 | $6 | $22 |
| Blood draw (venipuncture) Insertion of a needle into a vein to collect a blood sample. |
64 | $8 | $10 |
| 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. |
58 | $115 | $428 |
| Chemical destruction of first incompetent vein with imaging guidance This procedure uses imaging guidance to chemically destroy the first incompetent vein in the arm or leg. |
44 | $1,386 | $4,968 |
| Hospital follow-up visit, moderate complexity Follow-up hospital visit for an existing patient involving moderate medical decision making. The visit requires at least 35 minutes of time spent on the date of service. |
37 | $64 | $187 |
| Natriuretic peptide level test A blood test that measures the level of natriuretic peptide, a protein produced by the heart and blood vessels. |
31 | $38 | $105 |
| Comprehensive metabolic blood panel A blood test that measures a group of chemicals, including glucose, electrolytes, and kidney and liver function markers. |
30 | $10 | $36 |
| Lipid panel (cholesterol and triglycerides) A blood test that measures cholesterol and triglyceride levels. |
22 | $13 | $42 |
| Basic metabolic blood panel A blood test that measures a group of basic chemicals, including total calcium levels. |
20 | $8 | $28 |
| 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. |
20 | $8 | $24 |
| Thyroid stimulating hormone (TSH) test A blood test that measures the level of thyroid stimulating hormone to evaluate thyroid function. |
18 | $16 | $56 |
| Continuous ECG monitoring, up to 30 days Continuous heart rhythm monitoring for up to 30 days, including professional review and reporting of the results. |
18 | $21 | $69 |
| 30-day continuous ECG with patient-triggered event transmission and review This procedure involves continuous electrocardiogram monitoring for up to 30 days, including the transmission of patient-triggered events. A healthcare professional reviews the data and provides a report. |
18 | $690 | $1,824 |
| New patient office visit (30-44 min) An initial office visit for a new patient lasting between 30 and 44 minutes. This code is used when the total time spent on the date of the encounter falls within this range. |
17 | $69 | $285 |
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 ↗$62,181
Total received (2018-2024)
Avg $8,883/year across 7 years
Top 10% in TX for interventional cardiology
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
50
Companies
455
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
$1,556
2023
$2,335
2022
$1,775
2021
$1,415
2020
$1,512
2019
$33,983
2018
$19,605
Payments by company (2024)
Abbott Laboratories
$575
Novartis Pharmaceuticals Corporation
$297
Boston Scientific Corporation
$246
CVRx, Inc.
$198
E.R. Squibb & Sons, L.L.C.
$62
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)
$42
Janssen Pharmaceuticals, Inc
$36
Medtronic, Inc.
$27
Esperion Therapeutics, Inc.
$16
Amgen Inc.
$15
Tactile Systems Technology Inc
$15
CashFlow Solutions, LLC
$14
Becton, Dickinson and Company
$13
Top 3 companies account for 71.9% of 2024 payments
All-time payments by company (2018-2024) ›
Medtronic Vascular, Inc.
$49,201
Abbott Laboratories
$2,336
Medtronic, Inc.
$1,459
Novartis Pharmaceuticals Corporation
$1,109
Boston Scientific Corporation
$954
ABIOMED
$707
Janssen Pharmaceuticals, Inc
$620
Amgen Inc.
$497
Bard Peripheral Vascular, Inc.
$495
BARD PERIPHERAL VASCULAR, INC.
$474
Tactile Systems Technology Inc
$440
E.R. Squibb & Sons, L.L.C.
$341
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)
$258
BOSTON SCIENTIFIC CORPORATION
$252
Kowa Pharmaceuticals America, Inc.
$250
Astellas Pharma US Inc
$248
Impulse Dynamics (USA) Inc.
$245
Amarin Pharma Inc.
$226
CVRx, Inc.
$209
Silk Road Medical, Inc.
$209
PFIZER INC.
$189
Cardiovascular Systems Inc.
$188
Esperion Therapeutics, Inc.
$170
Philips Electronics North America Corporation
$138
Canon Medical Systems USA, Inc.
$99
Biocompatibles, Inc.
$85
Chiesi USA, Inc.
$76
BIOTRONIK INC.
$68
SANOFI-AVENTIS U.S. LLC
$66
Bolton Medical Inc
$66
AtriCure, Inc.
$62
Regeneron Healthcare Solutions, Inc.
$47
Regeneron Pharmaceuticals, Inc.
$38
Merck Sharp & Dohme LLC
$37
Biom'Up France SAS
$32
Endologix LLC
$31
CashFlow Solutions, LLC
$28
AstraZeneca Pharmaceuticals LP
$28
Alnylam Pharmaceuticals Inc.
$27
Resmed Corp
$25
HeartFlow, Inc.
$25
Boehringer Ingelheim Pharmaceuticals, Inc.
$22
AngioDynamics, Inc.
$18
Actelion Pharmaceuticals US, Inc.
$16
Merck Sharp & Dohme Corporation
$15
LeMaitre Vascular, Inc.
$14
Becton, Dickinson and Company
$13
Novo Nordisk Inc
$11
Gilead Sciences, Inc.
$11
Venclose Inc.
$2
Top 3 companies account for 85.2% of all-time payments
Associated products mentioned in payments ›
ADVISOR · AGILIS HISPRO · AIR 11 · ARCTIC FRONT ADVANCE · AVEIR · Alto Abdominal Stent Graft System · Amplia MRI · Barostim Neo System · CAMZYOS · CARDIOMEMS · CHANTIX · CONFIRM RX · COREVALVE EVOLUT R · CRT-Ds · ClosureFast · CoreValve Evolut · Corlanor · DIAMONDBACK PERIPHERAL · ELIQUIS · ENROUTE Transcarotid Neuroprotection System · ENSITE · ENSITE PRECISION · ENTRESTO · EPI-SENSE GUIDED COAGULATION SYSTEM WITH VISITRAX · EVRSF · EnSite Precision Cardiac Mapping System · Ensite Cardiac Mapping System · FARXIGA · FLEXITOUCH · Flexitouch Plus · HawkOne · HeartMate 3 Left Ventricular Dev · HemoBlast Bellows · IGT D Peripheral · IGT_D Peripheral · IN.PACT Admiral · Impella · JARDIANCE · KENGREAL · LEQVIO · LEXISCAN · LIFESTENT · LIFESTREAM · LUTONIX · LYMPHA PRESS OPTIMAL PLUS(US) BT · LifeVest · Livalo · Lympha Press Optimal Plus(US) BT · MERLIN@HOME · MULTAQ · Merlin Connectivity and Remote · NEXLETOL · ONPATTRO · ONYX FRONTIER · OPSUMIT · Optimizer · Optimizer Smart System · PET-CT SCANNER · PRALUENT · Peripheral Orbital Atherectomy System · RESOLUTE ONYX · RESTOREFLO · Relay Grafts · Repatha · Resolute · RotarexS 6 F x 135 cm · Saxenda · ULTRAVERSE · VALEO · VARITHENA · VENACURE 1470 PRO · VENASEAL · VENOVO · VERQUVO · VIGILANT · VYNDAQEL · Vascepa · VenaSeal · WATCHMAN · WATCHMAN Access System · WATCHMAN FLX · XARELTO · XIENCE SIERRA
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
Interventional cardiologists in nearby ZIP areas
55
County median income
$73,104
Nearest hospital to ZIP centroid (approximate)
MEMORIAL HERMANN NORTHEAST HOSPITAL
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. Gnaim is a clinical cardiology specialist, with moderate Medicare volume, with 19 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. Gnaim experienced with office visit, established patient (30-39 min)?
Based on Medicare claims data, Dr. Gnaim performed 720 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. Gnaim receive payments from pharmaceutical companies?
Yes. Dr. Gnaim received a total of $62,181 from 50 companies across 455 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. Gnaim's costs compare to other interventional cardiologists in Humble?
Dr. Gnaim's average Medicare payment per service is $93. 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. Gnaim) 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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