Dr. Michael Mazzini, M.D.
What this data tells you about Dr. Mazzini
Dr. Michael Mazzini is a cardiovascular disease specialist in Boston, MA, with 20 years of NPI registration. Based on federal Medicare data, Dr. Mazzini performed 2,272 Medicare services across 1,689 unique beneficiaries.
Between the years covered by Open Payments, Dr. Mazzini received a total of $11,704 from 2 pharmaceutical and/or device companies across 31 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in cardiovascular disease. The majority of payments are for speaking programs and promotional activities, reflecting participation in industry-sponsored events. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Mazzini 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.
Medicare Practice Summary
Medicare Utilization ↗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 |
|---|---|---|---|
| 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. |
594 | $11 | $54 |
| 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. |
323 | $5 | $27 |
| 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. |
249 | $18 | $88 |
| 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. |
231 | $94 | $382 |
| 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. |
164 | $20 | $101 |
| 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. |
98 | $132 | $543 |
| Implantable defibrillator system check A check of the implanted defibrillator device to ensure it is functioning correctly. This evaluation covers single, dual, or multiple lead systems. |
74 | $25 | $121 |
| 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. |
70 | $69 | $273 |
| Pacemaker programming, dual lead system Adjustment and configuration of a dual-lead pacemaker device to ensure proper operation and settings. |
68 | $27 | $125 |
| 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. |
66 | $26 | $170 |
| New patient office visit, complex (60-74 min) | 56 | $153 | $662 |
| Echocardiogram, transthoracic An ultrasound of the heart that uses color to show blood flow, rate, direction, and valve function. |
44 | $43 | $236 |
| 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. |
32 | $112 | $524 |
| 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. |
29 | $43 | $204 |
| Pacemaker programming, single lead Adjustment and testing of a single-lead pacemaker to ensure it functions correctly. |
22 | $24 | $104 |
| Pacemaker system programming Adjustment and configuration of a pacemaker device to ensure proper operation. This service involves setting device parameters before or after surgical implantation. |
22 | $10 | $50 |
| 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. |
21 | $10 | $40 |
| 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. |
19 | $40 | $188 |
| 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. |
19 | $17 | $87 |
| 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. |
19 | $790 | $4,564 |
| Pacemaker system evaluation Assessment of a pacemaker device, including single, dual, multiple lead, or leadless systems. |
18 | $16 | $68 |
| 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. |
17 | $31 | $138 |
| 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. |
17 | $63 | $377 |
Industry Payment Transparency
Open Payments through 2024 ↗Payment profile
Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
Payments by company (2024)
All-time payments by company (2018-2024) ›
Associated products mentioned in payments ›
The majority of payments (46%) are for speaking programs and promotional activities, which reflect participation in industry-sponsored educational or marketing events. This is common in cardiovascular disease and does not inherently indicate bias, but patients may wish to be aware.
Geographic Context
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. Mazzini is an electrophysiology & remote specialist, with moderate Medicare volume, with speaking/promotional industry engagement, 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
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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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