Medicare Enrolled
Dr. Michael Riordan, M.D
Cardiovascular Disease · West Chester, PA
Practice pattern: Electrophysiology & Remote
— Practice combining electrophysiology and remote services
Research-focused
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. Riordan 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. Riordan
Dr. Michael Riordan is a cardiovascular disease specialist in West Chester, PA, with 11 years of NPI registration. Based on federal Medicare data, Dr. Riordan performed 7,653 Medicare services across 5,049 unique beneficiaries.
Between the years covered by Open Payments, Dr. Riordan received a total of $58,396 from 14 pharmaceutical and/or device companies across 122 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in cardiovascular disease. The majority of payments are classified as research and scientific activities (grants and research funding). Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Riordan 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.
✓ 11 years in practice
▲ Top 1% volume in PA
$58,396 industry payments
Medicare Practice Summary
Medicare Utilization ↗7,653
Medicare services
Top 1% in PA for cardiovascular disease
5,049
Unique beneficiaries
$88
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~696 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. |
1,462 | $18 | $120 |
| 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. |
1,127 | $23 | $120 |
| 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. |
981 | $7 | $53 |
| 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. |
804 | $12 | $90 |
| 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. |
739 | $146 | $228 |
| 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. |
456 | $101 | $168 |
| 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. |
340 | $28 | $210 |
| Continuous ECG monitoring, up to 30 days Continuous heart rhythm monitoring for up to 30 days, including professional review and reporting of the results. |
310 | $21 | $80 |
| 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. |
308 | $725 | $2,200 |
| 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. |
235 | $20 | $93 |
| 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. |
234 | $30 | $120 |
| Pacemaker programming, dual lead system Adjustment and configuration of a dual-lead pacemaker device to ensure proper operation and settings. |
127 | $66 | $214 |
| New patient office visit, complex (60-74 min) | 88 | $180 | $342 |
| 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. |
76 | $144 | $325 |
| 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. |
62 | $10 | $40 |
| 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. |
33 | $439 | $2,100 |
| 2-day continuous ECG with review and report A two-day continuous electrocardiogram recording that includes a professional review and written report of the results. |
32 | $56 | $500 |
| 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. |
29 | $3,776 | $9,000 |
| 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. |
26 | $96 | $165 |
| 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. |
25 | $77 | $500 |
| Echocardiogram, transthoracic An ultrasound of the heart that uses color to show blood flow, rate, direction, and valve function. |
24 | $57 | $465 |
| 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 | $285 | $1,200 |
| Removal of subcutaneous heart rhythm monitor This procedure involves the removal of a heart rhythm monitor that has been implanted under the skin. It is a minor surgical intervention to extract the device. |
17 | $52 | $476 |
| Pacemaker programming, single lead Adjustment and testing of a single-lead pacemaker to ensure it functions correctly. |
17 | $53 | $176 |
| 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. |
17 | $77 | $279 |
| Pacemaker system evaluation Assessment of a pacemaker device, including single, dual, multiple lead, or leadless systems. |
16 | $49 | $141 |
| Sleep study with heart rate and breathing monitoring A sleep study that monitors heart rate, breathing patterns, and sleep duration. This test records physiological data while you sleep to assess your sleep quality and breathing function. |
15 | $86 | $400 |
| 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. |
12 | $660 | $2,700 |
| 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. |
12 | $805 | $3,650 |
| Transitional care management, high complexity Coordination of care for a patient transitioning from a short-term hospital stay or other facility to home or another care setting. This service addresses a high-complexity medical problem. |
11 | $235 | $690 |
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.
41.7% high complexity
0.0% medium
58.3% routine
Industry Payment Transparency
Open Payments through 2024 ↗$58,396
Total received (2020-2024)
Avg $11,679/year across 5 years
Top 8% in PA for cardiovascular disease
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
14
Companies
122
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.
Scientific / Research
Research funding and grants
$53,475 (91.6%)
Meals & Travel
Food, beverages, travel, and lodging — typically low-value
$4,921 (8.4%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$916
2023
$721
2022
$534
2021
$49,168
2020
$7,057
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
Medtronic, Inc.
$520
Biosense Webster, Inc.
$254
PFIZER INC.
$40
E.R. Squibb & Sons, L.L.C.
$38
Boston Scientific Corporation
$26
Siemens Medical Solutions USA, Inc.
$20
Novartis Pharmaceuticals Corporation
$17
Top 3 companies account for 88.9% of 2024 payments
All-time payments by company (2020-2024) ›
BOSTON SCIENTIFIC CORPORATION
$30,000
Abbott Laboratories
$18,584
Boston Scientific Corporation
$5,087
Medtronic Vascular, Inc.
$1,939
Medtronic, Inc.
$1,577
Biosense Webster, Inc.
$508
BIOTRONIK INC.
$305
Aziyo Biologics, Inc.
$149
AstraZeneca Pharmaceuticals LP
$98
PFIZER INC.
$55
E.R. Squibb & Sons, L.L.C.
$38
Siemens Medical Solutions USA, Inc.
$20
Kiniksa Pharmaceuticals, Ltd.
$18
Novartis Pharmaceuticals Corporation
$17
Top 3 companies account for 91.9% of all-time payments
Associated products mentioned in payments ›
AZURE XT DR MRI SURESCAN · Acticor · Acticor 7 VR-T DX · Adapta · Advisor Catheter · Arcalyst · BioMonitor · CARTO 3 · COBALT DR MRI SURESCAN · ECM Patch · ELIQUIS · EMBLEM · EMBLEM S-ICD ELECTRODE DELIVERY SYSTEM · ENSITE PRECISION · Edora · EnSite Precision Cardiac Mapping System · FARXIGA · GENERAL - BRADY · LEQVIO · LINQ II · MICRA · Micra · ONYX 18 · ONYX FRONTIER · Pouch · QDOT MICRO Catheter · Rivacor · Rivacor 7 DR-T · VYNDAQEL · WATCHMAN Access System · WATCHMAN FLX · syngo Dynamics
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 (92%) are classified as scientific/research, suggesting involvement in clinical studies, grants, or innovation-related work. Total industry engagement is in the top 8% for cardiovascular disease in PA.
Geographic Context
Cardiologists within 10 mi
476
Per 100K population
88.0
County median income
$123,041
Nearest hospital
CHESTER COUNTY HOSPITAL
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. Riordan is an electrophysiology & remote specialist, with above-average Medicare volume (top 1% in PA), with research-focused industry engagement in the top 8% of PA peers.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
Is Dr. Riordan experienced with remote pacemaker/defibrillator monitoring, 90 days?
Based on Medicare claims data, Dr. Riordan performed 1,462 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. Riordan receive payments from pharmaceutical companies?
Yes. Dr. Riordan received a total of $58,396 from 14 companies across 122 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. Riordan's costs compare to other cardiologists in West Chester?
Dr. Riordan's average Medicare payment per service is $88. 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. Riordan) 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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