Medicare Enrolled
Dr. Marlos Fernandes, MD
Cardiovascular Disease · Houston, TX
Practice pattern: Cardiac & Electrophysiology
— Practice combining cardiac and electrophysiology services
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. Fernandes 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. Fernandes
Dr. Marlos Fernandes is a cardiovascular disease specialist in Houston, TX, with 13 years of NPI registration. Based on federal Medicare data, Dr. Fernandes performed 2,407 Medicare services in 2023. These records do not provide a deduplicated patient total.
Between the years covered by Open Payments, Dr. Fernandes received a total of $4,814 from 26 pharmaceutical and/or device companies across 143 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. Fernandes 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.
✓ 13 years of NPI registration
▲ Top 48% volume in TX
$4,814 industry payments
Medicare Practice Summary — 2023
Medicare Utilization ↗2,407
Medicare services
Top 48% in TX for cardiovascular disease
Not available
Unique patients (not deduplicated)
$99
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 |
|---|---|---|---|
| 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. |
400 | $46 | $100 |
| 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. |
347 | $94 | $200 |
| 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. |
344 | $11 | $41 |
| Echocardiogram, transthoracic An ultrasound of the heart that uses color to show blood flow, rate, direction, and valve function. |
189 | $109 | $542 |
| 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. |
183 | $61 | $141 |
| Regadenoson injection (Lexiscan) for heart stress test An injection of regadenoson, a medication used to stress the heart during diagnostic testing. |
164 | $43 | $75 |
| Remote monitoring of implantable heart rhythm device Evaluation of data transmitted remotely from an implantable cardiovascular monitor, such as a loop recorder or subcutaneous cardiac rhythm monitor, over a period up to 30 days. |
107 | $27 | $100 |
| Prothrombin time test (blood clotting) A laboratory test that measures how long it takes for blood to clot. This procedure evaluates the body's coagulation process. |
71 | $4 | $10 |
| 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. |
69 | $6 | $20 |
| Office visit for established patient An office visit for an existing patient that may not require the healthcare professional to be present. |
56 | $18 | $39 |
| Initial hospital admission, high complexity Initial hospital inpatient or observation care for a new patient involving high-level medical decision making, with at least 75 minutes total time on the date of the encounter. |
53 | $122 | $388 |
| Exercise or drug-induced heart stress test with ECG A heart stress test performed using exercise or medication while monitoring the electrocardiogram under physician supervision and review. |
47 | $57 | $146 |
| Remote pacemaker/defibrillator monitoring, 90 days Remote evaluation of a pacemaker or implantable defibrillator system within 90 days of the last check. |
42 | $16 | $68 |
| Nuclear stress test with CT scan A nuclear medicine imaging test that evaluates blood flow in the heart muscle at rest and during stress, performed alongside a concurrent CT scan. |
41 | $1,932 | $4,000 |
| PET scan of heart muscle blood flow A nuclear medicine imaging test that uses positron emission tomography (PET) to evaluate blood flow within the heart muscle. |
41 | $146 | $300 |
| Rubidium rb-82, diagnostic, per study dose, up to 60 millicuries | 41 | $626 | $798 |
| 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. |
36 | $126 | $382 |
| Hospital follow-up visit, high complexity Subsequent hospital inpatient or observation care for an existing patient involving high-level medical decision making, with at least 50 minutes total time on the date of the encounter. |
30 | $95 | $202 |
| Telephone or internet assessment, 11-20 minutes A remote consultation conducted via telephone or internet that includes verbal discussion and a written report, lasting between 11 and 20 minutes. |
21 | $29 | $60 |
| Ultrasound of arm or leg veins An ultrasound exam of the veins in the arm or leg. The test uses sound waves to check blood flow and may include compression and other maneuvers. |
18 | $151 | $378 |
| Initial hospital admission, moderate complexity Initial hospital inpatient or observation care for a new patient involving moderate-level medical decision making, with at least 55 minutes total time on the date of the encounter. |
18 | $104 | $265 |
| 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. |
17 | $10 | $25 |
| Online digital E/M service, established patient, 11-20 min An online digital evaluation and management service for an established patient. The service involves a total time of 11 to 20 minutes over a period of up to 7 days. |
14 | $24 | $40 |
| Ultrasound of head and neck blood flow, bilateral An ultrasound exam that uses sound waves to visualize and assess blood flow in the vessels of both the head and the neck. |
13 | $149 | $369 |
| Ultrasound guidance for blood vessel access Use of ultrasound imaging to help locate and access a blood vessel. This guidance assists healthcare providers in performing procedures such as inserting IV lines or drawing blood. |
12 | $11 | $68 |
| Cardiac catheterization | 11 | $201 | $600 |
| Ultrasound of arm and leg arteries This procedure uses sound waves to create images of the blood vessels in the arms and legs. It allows healthcare providers to examine the structure and blood flow within these arteries. |
11 | $52 | $231 |
| Ultrasound of leg arteries or grafts An imaging test that uses sound waves to create pictures of the blood vessels in the legs or any surgical grafts present. |
11 | $194 | $369 |
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.
10.1% high complexity
13.2% medium
76.8% routine
Industry Payment Transparency
Open Payments through 2024 ↗$4,814
Total received (2018-2024)
Avg $688/year across 7 years
Bottom 49% in TX for cardiovascular disease
26
Companies
143
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
$488
2023
$1,003
2022
$710
2021
$379
2020
$57
2019
$1,735
2018
$442
Payments by company (2024)
Novartis Pharmaceuticals Corporation
$172
Amgen Inc.
$56
Impulse Dynamics (USA) Inc.
$55
Kiniksa Pharmaceuticals International, plc
$47
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)
$37
SCPHARMACEUTICALS INC.
$35
Boston Scientific Corporation
$26
Novo Nordisk Inc
$19
Boehringer Ingelheim Pharmaceuticals, Inc.
$16
Medtronic, Inc.
$13
Lexicon Pharmaceuticals, Inc.
$13
Top 3 companies account for 57.8% of 2024 payments
All-time payments by company (2018-2024) ›
Boston Scientific Corporation
$1,466
Medtronic, Inc.
$559
Novartis Pharmaceuticals Corporation
$468
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)
$383
Medtronic Vascular, Inc.
$249
BOSTON SCIENTIFIC CORPORATION
$230
Impulse Dynamics (USA) Inc.
$199
Endologix LLC
$189
ABIOMED
$165
Merck Sharp & Dohme LLC
$154
Edwards Lifesciences Corporation
$120
Janssen Pharmaceuticals, Inc
$114
Boehringer Ingelheim Pharmaceuticals, Inc.
$112
Amgen Inc.
$76
Chiesi USA, Inc.
$74
Kiniksa Pharmaceuticals International, plc
$47
SCPHARMACEUTICALS INC.
$35
PFIZER INC.
$32
BIOTRONIK INC.
$27
AstraZeneca Pharmaceuticals LP
$25
SANOFI-AVENTIS U.S. LLC
$19
Novo Nordisk Inc
$19
E.R. Squibb & Sons, L.L.C.
$16
Lexicon Pharmaceuticals, Inc.
$13
Esperion Therapeutics, Inc.
$12
ZOLL Circulation Inc
$10
Top 3 companies account for 51.8% of all-time payments
Associated products mentioned in payments ›
Alto Abdominal Stent Graft System · Arcalyst · BRILINTA · CONCERTOTM · ELIQUIS · ENTRESTO · FUROSCIX · GENERAL PAIN MANAGEMENT · HAWKONE · HawkOne · IN.PACT ADMIRAL · Impella · JARDIANCE · KENGREAL · LEQVIO · LUX-DX · LUX-Dx Insertable Cardiac Monitor · LifeVest · MULTAQ · NEXLETOL · OPTIMIZER · Optimizer · RESONATE · REVEAL LINQ · Repatha · Resolute · S-ICD System Magnet · SILVERHAWK · STINGRAY · TURBOHAWK · Temperature Management System · VERQUVO · VIGILANT · WATCHMAN · WATCHMAN FLX · XARELTO
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
Cardiologists in nearby ZIP areas
314
County median income
$73,104
Nearest hospital to ZIP centroid (approximate)
HCA HOUSTON HEALTHCARE SOUTHEAST
4.7 mi
4.7 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. Fernandes is a cardiac & electrophysiology specialist, with moderate Medicare volume.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
Is Dr. Fernandes experienced with chronic care management, first 20 min/month?
Based on Medicare claims data, Dr. Fernandes performed 400 chronic care management, first 20 min/month 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. Fernandes receive payments from pharmaceutical companies?
Yes. Dr. Fernandes received a total of $4,814 from 26 companies across 143 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. Fernandes's costs compare to other cardiologists in Houston?
Dr. Fernandes's average Medicare payment per service is $99. 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. Fernandes) 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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