Medicare Enrolled
Dr. John Marenco, M.D.
Cardiovascular Disease · Springfield, MA
Practice pattern: Remote & Electrophysiology
— Practice combining remote and electrophysiology services
Consulting-driven
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. Marenco 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. Marenco
Dr. John Marenco is a cardiovascular disease specialist in Springfield, MA, with 20 years of NPI registration. Based on federal Medicare data, Dr. Marenco performed 8,302 Medicare services across 4,310 unique beneficiaries.
Between the years covered by Open Payments, Dr. Marenco received a total of $37,932 from 27 pharmaceutical and/or device companies across 313 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in cardiovascular disease. The majority of payments are for consulting, which typically reflects recognized clinical expertise sought by manufacturers. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Marenco 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.
✓ 20 years in practice
▲ Top 2% volume in MA
$37,932 industry payments
Medicare Practice Summary
Medicare Utilization ↗8,302
Medicare services
Top 2% in MA for cardiovascular disease
4,310
Unique beneficiaries
$43
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~415 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 |
|---|---|---|---|
| Remote pacemaker/defibrillator monitoring, 90 days Remote evaluation of a pacemaker or implantable defibrillator system within 90 days of the last check. |
1,405 | $17 | $110 |
| Remote monitoring of implantable heart device, up to 30 days Remote evaluation of an implanted heart or blood vessel monitoring system over a period of up to 30 days. |
1,058 | $19 | $54 |
| 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. |
997 | $28 | $38 |
| 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. |
967 | $21 | $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. |
625 | $95 | $300 |
| 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. |
600 | $11 | $80 |
| 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. |
450 | $27 | $180 |
| 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. |
376 | $19 | $85 |
| 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. |
297 | $5 | $50 |
| Pacemaker programming, dual lead system Adjustment and configuration of a dual-lead pacemaker device to ensure proper operation and settings. |
290 | $60 | $180 |
| Evaluation of implantable heart and blood vessel monitoring system This procedure involves checking the function and data of an implanted device used to monitor heart and blood vessel activity. |
213 | $41 | $69 |
| 2-day continuous ECG with professional review A two-day continuous electrocardiogram recording that includes a review by a healthcare professional. |
183 | $14 | $48 |
| 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. |
93 | $83 | $270 |
| 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. |
90 | $10 | $110 |
| Pacemaker programming, single lead Adjustment and testing of a single-lead pacemaker to ensure it functions correctly. |
68 | $54 | $150 |
| Programming of single lead implantable defibrillator system Adjustment and testing of the settings for a single-lead implantable cardioverter-defibrillator (ICD) to ensure proper function. |
59 | $57 | $200 |
| 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. |
50 | $104 | $291 |
| Continuous ECG monitoring, up to 30 days Continuous heart rhythm monitoring for up to 30 days, including professional review and reporting of the results. |
43 | $20 | $54 |
| 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. |
42 | $64 | $150 |
| 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. |
40 | $702 | $950 |
| 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. |
39 | $142 | $350 |
| Atrial fibrillation ablation with pulmonary vein isolation A procedure to treat atrial fibrillation by mapping the heart's electrical activity and destroying tissue causing irregular contractions. This is done by isolating the pulmonary veins using catheter-based destruction. |
34 | $745 | $1,969 |
| 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. |
34 | $126 | $400 |
| Pacemaker system programming Adjustment and testing of a multi-lead pacemaker to ensure proper function and settings. |
33 | $68 | $210 |
| 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. |
32 | $73 | $240 |
| Pacemaker insertion with heart chamber electrodes A surgical procedure to implant a pacemaker device and place electrodes into the upper and lower chambers of the heart to regulate heart rhythm. |
26 | $377 | $1,550 |
| 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. |
19 | $70 | $200 |
| Removal and replacement of dual lead permanent pacemaker This procedure involves removing an existing permanent pacemaker with two leads and replacing it with a new device. It is performed to update or repair the heart rhythm management system. |
18 | $282 | $625 |
| Insertion of implantable defibrillator system A surgical procedure to place an implantable cardioverter-defibrillator (ICD) device into the body. The device is connected to the heart to monitor heart rhythm and deliver shocks if dangerous arrhythmias occur. |
16 | $706 | $2,448 |
| 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 | $69 | $688 |
| Repair of left upper heart chamber with implant A surgical procedure to repair the left upper chamber of the heart using an implanted device, with review by a radiologist. |
15 | $643 | $1,016 |
| 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. |
13 | $87 | $653 |
| 30-day continuous ECG with symptom monitoring This procedure involves continuous electrocardiogram monitoring for up to 30 days, including symptom tracking and a professional review and report of the results. |
13 | $131 | $635 |
| Heart conduction tissue destruction A procedure that destroys heart conduction tissue to create a heart block. |
13 | $442 | $1,277 |
| Telephone medical discussion, 21-30 minutes A telephone conversation with a physician lasting between 21 and 30 minutes. This code covers the time spent discussing medical matters over the phone. |
13 | $96 | $242 |
| Radiofrequency ablation for supraventricular tachycardia A procedure to locate and destroy abnormal heart tissue in the upper chambers of the heart that causes a rapid heart rate. |
12 | $653 | $1,475 |
| Insertion of left lower heart electrode for pacemaker or defibrillator A procedure to place an electrode in the lower part of the left side of the heart. This electrode is used to connect a pacemaker or defibrillator to help regulate the heart's rhythm. |
11 | $364 | $1,100 |
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.
42.3% high complexity
0.0% medium
57.7% routine
Industry Payment Transparency
Open Payments through 2024 ↗$37,932
Total received (2018-2024)
Avg $5,419/year across 7 years
Top 12% in MA for cardiovascular disease
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
27
Companies
313
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.
Consulting
Expert advisory fees, typically reflecting recognized clinical expertise
$23,299 (61.4%)
Meals & Travel
Food, beverages, travel, and lodging — typically low-value
$14,633 (38.6%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$5,064
2023
$2,051
2022
$4,060
2021
$1,681
2020
$4,411
2019
$7,780
2018
$12,884
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
Abbott Laboratories
$1,873
BIOTRONIK INC.
$1,804
Medtronic, Inc.
$737
Boston Scientific Corporation
$231
Novartis Pharmaceuticals Corporation
$146
PFIZER INC.
$103
CARDIVA MEDICAL, INC.
$87
Kiniksa Pharmaceuticals International, plc
$25
Boehringer Ingelheim Pharmaceuticals, Inc.
$23
Alnylam Pharmaceuticals Inc.
$20
Amgen Inc.
$15
Top 3 companies account for 87.2% of 2024 payments
All-time payments by company (2018-2024) ›
Abbott Laboratories
$29,221
Medtronic, Inc.
$2,302
BIOTRONIK INC.
$2,259
Medtronic Vascular, Inc.
$609
Boston Scientific Corporation
$518
Novartis Pharmaceuticals Corporation
$495
Biosense Webster, Inc.
$383
PFIZER INC.
$346
Janssen Pharmaceuticals, Inc
$285
Boehringer Ingelheim Pharmaceuticals, Inc.
$251
AstraZeneca Pharmaceuticals LP
$210
Impulse Dynamics (USA) Inc.
$195
CARDIVA MEDICAL, INC.
$189
Alnylam Pharmaceuticals Inc.
$81
Amgen Inc.
$72
Merck Sharp & Dohme LLC
$71
E.R. Squibb & Sons, L.L.C.
$62
HeartFlow, Inc.
$60
BOSTON SCIENTIFIC CORPORATION
$57
SANOFI-AVENTIS U.S. LLC
$53
Kiniksa Pharmaceuticals, Ltd.
$52
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)
$36
Merck Sharp & Dohme Corporation
$34
Astellas Pharma US Inc
$27
Kiniksa Pharmaceuticals International, plc
$25
Alexion Pharmaceuticals, Inc.
$21
Amarin Pharma Inc.
$16
Top 3 companies account for 89.1% of all-time payments
Associated products mentioned in payments ›
ASSURITY · AVEIR · AZURE XT DR MRI SURESCAN · Ablation Therapy Hardware · Accent Pacemaker · Acticor 7 VR-T DX · Advisa · Allure CRT Pacemaker · Allure Quadra RF CRT Pacemaker · Andexxa · Arcalyst · Arctic Front · Assurity Pacemaker · Azure · BRILINTA · BioMonitor · CAMZYOS · CARDIVA VASCADE 6/7F VCS · CARDIVA VASCADE MVP VVCS 6-12F · CARTO 3 · CHANTIX · CareLink · Carto 3 · Claria MRI · Confirm Rx · Corlanor · Crome · DIAMONDTEMP BIDIRECTIONAL ABLATION CATHETER · ELIQUIS · ENSITE · ENSITE PRECISION · ENTRESTO · Ellipse ICD · EnSite Precision Cardiac Mapping System · Ensite Cardiac Mapping System · FARXIGA · FFRct · Fortify Assura · GALLANT · GENERAL BRADY · GENERAL BRADY · JARDIANCE · JOT DX · LEQVIO · LEXISCAN · LINQ II · LUX DX · LUX-DX · LUX-Dx Insertable Cardiac Monitor · LifeVest · MICRA · MULTAQ · Merlin Connectivity and Remote · Micra · Mitra Clip system · ONPATTRO · OPTIMIZER · PRADAXA · PRALUENT · PULSESELECT · QUADRA ASSURA · Quadra Allure MP RF CRT Pacemkr · Quadra Assura CRT Defibrillator · Quartet CRT Lead · Repatha · SELECTSECURE · Solia · Supreme EP Diagnostic Catheters · TENDRIL · TactiCath Quartz CFA Catheter · VERQUVO · VIGILANT · VYNDAMAX · VYNDAQEL · VantageView System · Vascepa · ViewFlex Xtra ICE Catheter · ViewMate Intracardiac Echo · WATCHMAN · XARELTO · Zero Gravity
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 →
The majority of payments (61%) are consulting fees, which typically reflect recognized clinical expertise sought by manufacturers.
Geographic Context
Cardiologists within 10 mi
81
Per 100K population
17.5
County median income
$70,535
Nearest hospital
MERCY MEDICAL CTR
0.0 mi
0.0 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 reflects how much public data is available about a provider. How we calculate this →
Summary
Dr. Marenco is a remote & electrophysiology specialist, with above-average Medicare volume (top 2% in MA), with consulting-driven industry engagement in the top 12% of MA peers, with 20 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. Marenco experienced with remote pacemaker/defibrillator monitoring, 90 days?
Based on Medicare claims data, Dr. Marenco performed 1,405 remote pacemaker/defibrillator monitoring, 90 days 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. Marenco receive payments from pharmaceutical companies?
Yes. Dr. Marenco received a total of $37,932 from 27 companies across 313 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. Marenco's costs compare to other cardiologists in Springfield?
Dr. Marenco's average Medicare payment per service is $43. 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. Marenco) 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. 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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