Medicare Enrolled
Dr. Joe Ahn, MD
Cardiovascular Disease · Bridgewater, NJ
Practice pattern: Cardiac & Electrophysiology
— Practice combining cardiac and electrophysiology services
Low-engagement
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. Ahn 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. Ahn
Dr. Joe Ahn is a cardiovascular disease specialist in Bridgewater, NJ, with 18 years of NPI registration. Based on federal Medicare data, Dr. Ahn performed 4,735 Medicare services across 3,008 unique beneficiaries.
Between the years covered by Open Payments, Dr. Ahn received a total of $4,041 from 34 pharmaceutical and/or device companies across 213 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in cardiovascular disease. Most payments are for meals and travel — low-value interactions common across virtually all practicing physicians. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Ahn 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.
✓ 18 years in practice
▲ Top 18% volume in NJ
$4,041 industry payments
Medicare Practice Summary
Medicare Utilization ↗4,735
Medicare services
Top 18% in NJ for cardiovascular disease
3,008
Unique beneficiaries
$66
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~263 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 |
|---|---|---|---|
| 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. |
1,001 | $98 | $564 |
| 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. |
904 | $12 | $67 |
| 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. |
581 | $6 | $37 |
| 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. |
488 | $67 | $391 |
| Regadenoson injection (Lexiscan) for heart stress test An injection of regadenoson, a medication used to stress the heart during diagnostic testing. |
448 | $40 | $336 |
| 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. |
240 | $70 | $400 |
| 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. |
176 | $55 | $320 |
| Nuclear stress test of heart muscle A nuclear medicine imaging test that evaluates blood flow to the heart muscle at rest and during stress using a special camera. |
149 | $401 | $2,051 |
| Echocardiogram, transthoracic An ultrasound of the heart that uses color to show blood flow, rate, direction, and valve function. |
146 | $156 | $870 |
| 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. |
136 | $4 | $18 |
| 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. |
132 | $135 | $834 |
| Technetium Tc-99m sestamibi diagnostic injection A diagnostic injection of technetium Tc-99m sestamibi used for imaging studies. |
115 | $75 | $628 |
| 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. |
60 | $122 | $734 |
| Transesophageal echocardiogram An ultrasound of the heart performed using a probe inserted into the esophagus to obtain detailed images of heart structures and function. |
22 | $86 | $451 |
| Exercise or drug-induced heart stress test with ECG A heart stress test performed using exercise or medication while an electrocardiogram is monitored under physician supervision. |
17 | $16 | $91 |
| Exercise or drug-induced heart stress test with ECG A heart stress test performed using exercise or medication while monitoring the electrocardiogram, with physician review of the results. |
17 | $11 | $60 |
| Continuous EKG monitoring review, 48-7 days Review and interpretation of continuous external EKG recordings lasting more than 48 hours up to 7 days. |
17 | $16 | $101 |
| Follow-up heart ultrasound An ultrasound of the heart performed to monitor or reassess a previously identified condition or treatment progress. |
17 | $20 | $120 |
| 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 | $89 | $692 |
| Continuous external EKG monitoring, 48 hours to 7 days This procedure involves recording the heart's electrical activity continuously using an external device for a period exceeding 48 hours but not more than 7 days. |
16 | $10 | $57 |
| Echocardiogram with color Doppler An ultrasound of the heart that uses color imaging to visualize blood flow, measure flow rate, and assess valve function. |
15 | $2 | $108 |
| 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. |
11 | $157 | $789 |
| Aminophylline injection, up to 250 mg Administration of aminophylline medication via injection for a dose of up to 250 mg. |
11 | $6 | $53 |
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.
3.1% high complexity
20.8% medium
76.1% routine
Industry Payment Transparency
Open Payments through 2024 ↗$4,041
Total received (2018-2024)
Avg $577/year across 7 years
Top 41% in NJ for cardiovascular disease
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
34
Companies
213
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.
Meals & Travel
Food, beverages, travel, and lodging — typically low-value
$3,881 (96.1%)
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$160 (3.9%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$1,074
2023
$793
2022
$452
2021
$335
2020
$337
2019
$381
2018
$669
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
Abbott Laboratories
$223
Esperion Therapeutics, Inc.
$199
E.R. Squibb & Sons, L.L.C.
$160
ABIOMED
$87
AstraZeneca Pharmaceuticals LP
$45
Biosense Webster, Inc.
$42
Lexicon Pharmaceuticals, Inc.
$37
PFIZER INC.
$33
Bard Peripheral Vascular, Inc.
$31
Medtronic, Inc.
$29
Boehringer Ingelheim Pharmaceuticals, Inc.
$29
Novartis Pharmaceuticals Corporation
$23
CVRx, Inc.
$23
ATRICURE, INC.
$21
Kiniksa Pharmaceuticals International, plc
$17
Kowa Pharmaceuticals America, Inc.
$16
Amgen Inc.
$16
Boston Scientific Corporation
$16
CSL Behring
$14
Azurity Pharmaceuticals, Inc.
$13
Top 3 companies account for 54.2% of 2024 payments
All-time payments by company (2018-2024) ›
Janssen Pharmaceuticals, Inc
$431
E.R. Squibb & Sons, L.L.C.
$429
Abbott Laboratories
$349
Novartis Pharmaceuticals Corporation
$315
AstraZeneca Pharmaceuticals LP
$271
Edwards Lifesciences Corporation
$222
Esperion Therapeutics, Inc.
$199
Amgen Inc.
$191
Amarin Pharma Inc.
$160
Boehringer Ingelheim Pharmaceuticals, Inc.
$158
PFIZER INC.
$153
Boston Scientific Corporation
$136
BOSTON SCIENTIFIC CORPORATION
$131
ABIOMED
$123
Merck Sharp & Dohme LLC
$120
Astellas Pharma US Inc
$100
Medtronic, Inc.
$70
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)
$67
SANOFI-AVENTIS U.S. LLC
$53
Lexicon Pharmaceuticals, Inc.
$51
Biosense Webster, Inc.
$42
Impulse Dynamics (USA) Inc.
$32
Bard Peripheral Vascular, Inc.
$31
Regeneron Healthcare Solutions, Inc.
$28
Alnylam Pharmaceuticals Inc.
$28
CVRx, Inc.
$23
ATRICURE, INC.
$21
Daiichi Sankyo Inc.
$17
Kiniksa Pharmaceuticals International, plc
$17
Kowa Pharmaceuticals America, Inc.
$16
Allergan Inc.
$15
CSL Behring
$14
Merck Sharp & Dohme Corporation
$14
Azurity Pharmaceuticals, Inc.
$13
Top 3 companies account for 29.9% of all-time payments
Associated products mentioned in payments ›
AMPLATZER AMULET · AVEIR · AZURE XT DR MRI SURESCAN · Arcalyst · BRILINTA · BYSTOLIC · Barostim Neo System · CAMZYOS · CARTO 3 · CareLink · Corlanor · EDARBI · ELIQUIS · ENTRESTO · EPI-SENSE GUIDED COAGULATION SYSTEM WITH VISITRAX · Edwards SAPIEN 3 Transcatheter Heart Valve · FARXIGA · GALLANT · INJECTAFER · Impella · Inpefa · JARDIANCE · JOT DX · Kcentra · LATITUDE · LEQVIO · LINQ II · LIVALO · LOKELMA · LUX DX · LifeVest · MULTAQ · Merlin Connectivity and Remote · NEXLETOL · NEXLIZET · ONPATTRO · OPTIMIZER · PRADAXA · PRALUENT · Repatha · SAPIEN 3 Ultra RESILIA · TENDRIL · THORATEC HEARTMATE 3 LVAS IMPLANT KIT · VERQUVO · VYNDAQEL · Vascepa · Venclose Maven Catheter · WATCHMAN · WATCHMAN FLX · XARELTO
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 →
Most payments (96%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
Geographic Context
Cardiologists within 10 mi
364
Per 100K population
105.1
County median income
$135,960
Nearest hospital
ROBERT WOOD JOHNSON UNIVERSITY HOSPITAL - SOMERSET
3.5 mi
3.5 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. Ahn is a cardiac & electrophysiology specialist, with above-average Medicare volume (top 18% in NJ), with low-engagement industry engagement, with 18 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. Ahn experienced with office visit, established patient (30-39 min)?
Based on Medicare claims data, Dr. Ahn performed 1,001 office visit, established patient (30-39 min) 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. Ahn receive payments from pharmaceutical companies?
Yes. Dr. Ahn received a total of $4,041 from 34 companies across 213 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. Ahn's costs compare to other cardiologists in Bridgewater?
Dr. Ahn's average Medicare payment per service is $66. 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. Ahn) 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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