Medicare Enrolled
Dr. Huy Nguyen, MD
Cardiovascular Disease · Mission Viejo, CA
Practice pattern: Cardiac & Remote
— Practice combining cardiac and remote 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. Nguyen 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. Nguyen
Dr. Huy Nguyen is a cardiovascular disease specialist in Mission Viejo, CA, with 18 years of NPI registration. Based on federal Medicare data, Dr. Nguyen performed 2,503 Medicare services across 1,697 unique beneficiaries.
Between the years covered by Open Payments, Dr. Nguyen received a total of $7,932 from 34 pharmaceutical and/or device companies across 207 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. Nguyen 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 41% volume in CA
$7,932 industry payments
Medicare Practice Summary
Medicare Utilization ↗2,503
Medicare services
Top 41% in CA for cardiovascular disease
1,697
Unique beneficiaries
$95
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~139 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. |
398 | $99 | $233 |
| Regadenoson injection (Lexiscan) for heart stress test An injection of regadenoson, a medication used to stress the heart during diagnostic testing. |
344 | $42 | $77 |
| 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. |
322 | $6 | $22 |
| Technetium Tc-99m sestamibi diagnostic injection A diagnostic injection of technetium Tc-99m sestamibi used for imaging studies. |
213 | $64 | $230 |
| Echocardiogram, transthoracic An ultrasound of the heart that uses color to show blood flow, rate, direction, and valve function. |
203 | $164 | $569 |
| 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. |
154 | $130 | $356 |
| 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. |
152 | $21 | $60 |
| 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. |
134 | $12 | $47 |
| 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. |
110 | $54 | $222 |
| 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. |
109 | $398 | $1,186 |
| Remote patient monitoring device, 30 days Initial setup of devices for remote monitoring of body functions with daily data transmission or alerts. This service covers the first 30 days of the monitoring period. |
107 | $43 | $146 |
| 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. |
54 | $23 | $66 |
| Continuous ECG monitoring, up to 30 days Continuous heart rhythm monitoring for up to 30 days, including professional review and reporting of the results. |
42 | $21 | $56 |
| 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. |
42 | $789 | $1,700 |
| Stress echocardiogram with ECG monitoring An ultrasound of the heart performed while monitoring heart rhythm during rest, exercise, or medication-induced stress, followed by a review and report of the findings. |
28 | $198 | $899 |
| 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. |
26 | $141 | $422 |
| 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. |
24 | $62 | $151 |
| Coronary stent placement A procedure to insert a stent into a coronary artery or its branch to keep it open, using balloon dilation during the process. |
17 | $396 | $1,249 |
| Ultrasound of arm or leg veins An ultrasound exam of the veins in the arm or leg. The test uses sound waves to check blood flow and may include compression and other maneuvers. |
13 | $158 | $464 |
| Cardiac catheterization | 11 | $150 | $675 |
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.
11.4% high complexity
32.6% medium
56.0% routine
Industry Payment Transparency
Open Payments through 2024 ↗$7,932
Total received (2018-2024)
Avg $1,133/year across 7 years
Top 32% in CA for cardiovascular disease
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
34
Companies
207
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
$7,714 (97.3%)
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$217 (2.7%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$1,277
2023
$1,178
2022
$1,461
2021
$1,258
2020
$930
2019
$1,043
2018
$785
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
BIOTRONIK INC.
$226
SCPHARMACEUTICALS INC.
$175
Boehringer Ingelheim Pharmaceuticals, Inc.
$174
Amgen Inc.
$160
Novartis Pharmaceuticals Corporation
$134
Medtronic, Inc.
$66
Kiniksa Pharmaceuticals International, plc
$62
AstraZeneca Pharmaceuticals LP
$59
E.R. Squibb & Sons, L.L.C.
$47
Abbott Laboratories
$41
SANOFI-AVENTIS U.S. LLC
$31
Janssen Pharmaceuticals, Inc
$28
Boston Scientific Corporation
$27
Lexicon Pharmaceuticals, Inc.
$22
ABIOMED
$18
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)
$7
Top 3 companies account for 45.0% of 2024 payments
All-time payments by company (2018-2024) ›
BIOTRONIK INC.
$4,481
Amgen Inc.
$325
Medtronic, Inc.
$289
Medtronic Vascular, Inc.
$288
Boehringer Ingelheim Pharmaceuticals, Inc.
$264
SCPHARMACEUTICALS INC.
$241
E.R. Squibb & Sons, L.L.C.
$225
Novartis Pharmaceuticals Corporation
$198
Boston Scientific Corporation
$197
SANOFI-AVENTIS U.S. LLC
$171
AtriCure, Inc.
$159
Dexcom, Inc.
$124
AstraZeneca Pharmaceuticals LP
$117
Bayer HealthCare Pharmaceuticals Inc.
$112
Regeneron Pharmaceuticals, Inc.
$82
Astellas Pharma US Inc
$80
Kiniksa Pharmaceuticals International, plc
$62
Allergan Inc.
$52
ABIOMED
$50
Allergan, Inc.
$45
Abbott Laboratories
$41
SANOFI PASTEUR INC.
$40
Janssen Pharmaceuticals, Inc
$40
Braemar Manufacturing, LLC
$34
Merck Sharp & Dohme LLC
$32
Kiniksa Pharmaceuticals, Ltd.
$28
PFIZER INC.
$28
ABBVIE INC.
$26
Lexicon Pharmaceuticals, Inc.
$22
Edwards Lifesciences Corporation
$22
Merck Sharp & Dohme Corporation
$17
BOSTON SCIENTIFIC CORPORATION
$16
AbbVie Inc.
$16
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)
$7
Top 3 companies account for 64.2% of all-time payments
Associated products mentioned in payments ›
ABILIFY · Acticor · Acticor 7 VR-T DX · Arcalyst · BIOMONITOR · BYSTOLIC · BioMonitor · CAMZYOS · Cardiac Monitoring Suite · DEXCOM G7 GSS (161) · EDWARDS SAPIEN 3 TRANSCATHETER HEART VALVE (THV) · ELIQUIS · EPI-SENSE GUIDED COAGULATION SYSTEM WITH VISITRAX · EYLEA · Edora · Edora 8 DR-T · FARXIGA · FLUBLOK QUADRIVALENT NORTHERN HEMISPHERE · FLUZONE HIGH-DOSE · FUROSCIX · GALLANT · GENERAL BRADY · GENERAL VASCULAR INTERVENTION · GENERAL - THERAPIES · Impella · JARDIANCE · Kerendia · LEQVIO · LINZESS · LUX-Dx Insertable Cardiac Monitor · LifeVest · MITRACLIP · MULTAQ · Micra · Orsiro Mission · QULIPTA · Repatha · Rivacor · Rivacor 7 DR-T · SOLIQUA · Solia · UBRELVY · VENASEAL · VERQUVO · VYNDAQEL · VenaSeal · 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 (97%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
Geographic Context
Cardiologists within 10 mi
197
Per 100K population
6.2
County median income
$113,702
Nearest hospital
PROVIDENCE MISSION 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. Nguyen is a cardiac & remote specialist, with moderate Medicare volume, 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. Nguyen experienced with office visit, established patient (30-39 min)?
Based on Medicare claims data, Dr. Nguyen performed 398 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. Nguyen receive payments from pharmaceutical companies?
Yes. Dr. Nguyen received a total of $7,932 from 34 companies across 207 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. Nguyen's costs compare to other cardiologists in Mission Viejo?
Dr. Nguyen's average Medicare payment per service is $95. 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. Nguyen) 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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