Medicare Enrolled
Dr. Marilyn Cox, M.D.
Clinical Cardiac Electrophysiology Physician · Tallahassee, FL
Practice pattern: Electrophysiology & Remote
— Practice combining electrophysiology and remote 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. Cox 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. Cox
Dr. Marilyn Cox is a clinical cardiac electrophysiology physician in Tallahassee, FL, with 21 years of NPI registration. Based on federal Medicare data, Dr. Cox performed 3,106 Medicare services in 2023. These records do not provide a deduplicated patient total.
Between the years covered by Open Payments, Dr. Cox received a total of $8,177 from 24 pharmaceutical and/or device companies across 300 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. Cox 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
▲ 3,106 Medicare services
$8,177 industry payments
Medicare Practice Summary — 2023
Medicare Utilization ↗3,106
Medicare services
Bottom 45% in FL for clinical cardiac electrophysiology physician
Not available
Unique patients (not deduplicated)
$35
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 |
|---|---|---|---|
| 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. |
554 | $6 | $64 |
| Remote pacemaker monitoring, 90 days Remote assessment of a pacemaker system, including single, dual, multiple lead, or leadless devices, performed up to 90 days apart. |
428 | $20 | $58 |
| Remote cardiac rhythm monitor evaluation, up to 30 days Review and analysis of data from a remote cardiac rhythm monitoring system over a period of up to 30 days. |
421 | $18 | $47 |
| 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. |
281 | $11 | $53 |
| Pacemaker programming, dual lead system Adjustment and configuration of a dual-lead pacemaker device to ensure proper operation and settings. |
261 | $50 | $95 |
| 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. |
188 | $91 | $205 |
| Echocardiogram, transthoracic An ultrasound of the heart that uses color to show blood flow, rate, direction, and valve function. |
127 | $87 | $509 |
| Anticoagulant management for warfarin Management of anticoagulant therapy for a patient taking warfarin. This service involves monitoring and adjusting the medication regimen. |
114 | $7 | $21 |
| Remote evaluation of implantable defibrillator system Remote assessment of a single, dual, or multiple lead implantable defibrillator system within 90 days of the previous evaluation. |
113 | $23 | $105 |
| Cardiac rhythm monitor evaluation Review and analysis of data recorded by a cardiac rhythm monitoring device to assess heart activity. |
90 | $32 | $63 |
| 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. |
86 | $92 | $168 |
| 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. |
63 | $132 | $289 |
| 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. |
61 | $4 | $17 |
| 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. |
37 | $125 | $324 |
| Programming of multiple lead implantable defibrillator system Adjustment and testing of the settings for an implanted heart device with multiple leads to ensure proper function. |
36 | $68 | $168 |
| Programming of dual lead implantable defibrillator system Adjustment and testing of the settings for an implanted heart device with two leads to ensure proper function. |
31 | $64 | $137 |
| CT scan of chest, without contrast A computed tomography scan of the chest area that uses X-rays to create detailed images without the use of contrast dye. |
25 | $41 | $383 |
| New patient office visit, complex (60-74 min) | 25 | $135 | $357 |
| CT scan of head/brain, without contrast A CT scan uses X-rays to create detailed images of the head or brain without the use of contrast dye. |
19 | $40 | $305 |
| Remote pacemaker/defibrillator monitoring, 90 days Remote evaluation of a pacemaker or implantable defibrillator system within 90 days of the last check. |
18 | $11 | $210 |
| 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. |
18 | $63 | $152 |
| CT scan of chest blood vessels with contrast A CT scan that uses contrast dye to create detailed images of the blood vessels in the chest. |
16 | $111 | $677 |
| External shock to heart to regulate heart beat A procedure that delivers an electric shock to the heart from outside the body to restore a normal heart rhythm. |
16 | $79 | $378 |
| Insertion of implantable heart rhythm monitor A small device is placed under the skin to continuously record the heart's electrical activity. This helps detect irregular heart rhythms that may not appear during a standard office visit. |
15 | $62 | $152 |
| Hospital discharge management, 30+ min This service covers the care provided by a physician or qualified healthcare professional on the day a patient is discharged from the hospital. It requires more than 30 minutes of total time spent on the day of discharge. |
15 | $84 | $168 |
| CT scan of abdomen and pelvis with contrast A CT scan that uses dye to create detailed images of the abdomen and pelvis. This imaging test helps doctors examine internal organs and structures in these areas. |
13 | $143 | $530 |
| 2-day continuous ECG monitoring A continuous electrocardiogram recording that captures heart activity over a 48-hour period. This test helps detect irregular heart rhythms or other cardiac issues that may not appear during a standard, short-term ECG. |
12 | $12 | $42 |
| 2-day continuous ECG with professional review A two-day continuous electrocardiogram recording that includes a review by a healthcare professional. |
12 | $12 | $42 |
| Continuous ECG monitoring, up to 30 days Continuous heart rhythm monitoring for up to 30 days, including professional review and reporting of the results. |
11 | $20 | $32 |
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.
32.6% high complexity
2.4% medium
65.0% routine
Industry Payment Transparency
Open Payments through 2024 ↗$8,177
Total received (2018-2024)
Avg $1,168/year across 7 years
Bottom 24% in FL for clinical cardiac electrophysiology physician
24
Companies
300
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
$452
2023
$931
2022
$2,585
2021
$999
2020
$489
2019
$870
2018
$1,851
Payments by company (2024)
Medtronic, Inc.
$432
ABBVIE INC.
$20
Top 3 companies account for 100.0% of 2024 payments
All-time payments by company (2018-2024) ›
Abbott Laboratories
$3,836
Medtronic, Inc.
$1,386
Boston Scientific Corporation
$1,011
BOSTON SCIENTIFIC CORPORATION
$504
Medtronic Vascular, Inc.
$403
PFIZER INC.
$255
Bard Peripheral Vascular, Inc.
$144
CARDIVA MEDICAL, INC.
$131
Janssen Pharmaceuticals, Inc
$112
Inari Medical, Inc.
$64
Zimmer Biomet Holdings, Inc.
$55
BIOTRONIK INC.
$39
SANOFI-AVENTIS U.S. LLC
$39
E.R. Squibb & Sons, L.L.C.
$34
Ethicon US, LLC
$31
ABBVIE INC.
$20
AngioDynamics, Inc.
$17
Impulse Dynamics (USA) Inc.
$16
Amgen Inc.
$16
Philips Electronics North America Corporation
$15
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)
$13
Preventice Services, LLC
$13
Bardy Diagnostics, Inc.
$12
Aziyo Biologics, Inc.
$10
Top 3 companies account for 76.2% of all-time payments
Associated products mentioned in payments ›
3F · ACCOLADE · ACUITY Steerable · ARCTIC FRONT ADVANCE · ASSURITY · AVALUS · AVEIR · AZURE XT DR MRI SURESCAN · Abre · Advisor Catheter · AngioVac · Arctic Front · Assurity Pacemaker · BG Mini Plus · CARDIOINSIGHT · CARDIVA VASCADE 6/7F VCS · CARDIVA VASCADE MVP VVCS 6-12F · CHANTIX · CLINICAL TRIAL PRODUCT · COREVALVE EVOLUT R · Capsure · Carnation Ambulatory Monitor · Confirm Rx · CoreValve Evolut · CryoConsole · DERMABOND PRINEO · ECM Patch · ELIQUIS · EMBLEM · EMBLEM S ICD ELECTRODE DELIVERY SYSTEM · EMBLEM SICD ELECTRODE DELIVERY SYSTEM · ENSITE · ENSITE PRECISION · Ellipse ICD · EnSite Precision Cardiac Mapping System · Ensite Cardiac Mapping System · FLOWTRIEVER CATHETER · Fluid Systems · Fortify Assura · GALLANT · GENERAL BRADY · GENERAL TACHY · GENERAL THERAPIES · GENERAL BRADY · GENERAL TACHY · GENERAL THERAPIES · GENERAL - BRADY · GENERAL - TACHY · GENERAL - THERAPIES · GENERAL BRADY · GENERAL TACHY · GENERAL THERAPIES · General - Brady · General - Tachy · General - Therapies · Health&WellnessUndiv · INGEVITY · INGEVITY MRI · JOT DX · LABSYSTEM PRO · LATITUDE · LAUNCHER · LIFESTREAM · LUTONIX · LUX DX · LUX-DX · LUX-Dx Insertable Cardiac Monitor · LifeVest · MICRA · MULTAQ · MYLUX · Merlin Connectivity and Remote · NA · ONYX FRONTIER · Optimizer · PRALUENT · Pacemakers · Pouch · RHYTHMIA · Repatha · Reveal LINQ · Rhythmia Mapping System · S · S-ICD System Magnet · SURGICEL Family of Absorbable Hemostats · TELESCOPE · UBRELVY · VENOVO · VIEWMATE · VYNDAQEL · WATCHMAN · WATCHMAN Access System · 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
Clinical cardiac electrophysiology physicians in nearby ZIP areas
3
County median income
$65,074
Nearest hospital to ZIP centroid (approximate)
TALLAHASSEE MEMORIAL HEALTHCARE
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. Cox is an electrophysiology & remote 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. Cox experienced with ekg interpretation and report?
Based on Medicare claims data, Dr. Cox performed 554 ekg interpretation and report 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. Cox receive payments from pharmaceutical companies?
Yes. Dr. Cox received a total of $8,177 from 24 companies across 300 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. Cox's costs compare to other clinical cardiac electrophysiology physicians in Tallahassee?
Dr. Cox's average Medicare payment per service is $35. 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. Cox) 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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Which FL clinical cardiac electrophysiology physicians receive the most from drug and device companies.
By company
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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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