Medicare Enrolled
Dr. Brian Chen, D.O.
Internal Medicine · Corona, CA
Practice pattern: Clinical Cardiology
— Primarily office-based clinical cardiology
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. Chen 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. Chen
Dr. Brian Chen is an internal medicine specialist in Corona, CA, with 10 years of NPI registration. Based on federal Medicare data, Dr. Chen performed 2,425 Medicare services across 1,545 unique beneficiaries.
Between the years covered by Open Payments, Dr. Chen received a total of $7,456 from 31 pharmaceutical and/or device companies across 206 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in internal medicine. 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. Chen 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.
✓ 10 years in practice
▲ Top 13% volume in CA
$7,456 industry payments
Medicare Practice Summary
Medicare Utilization ↗2,425
Medicare services
Top 13% in CA for internal medicine
1,545
Unique beneficiaries
$143
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~242 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. |
805 | $95 | $200 |
| Regadenoson injection (Lexiscan) for heart stress test An injection of regadenoson, a medication used to stress the heart during diagnostic testing. |
225 | $40 | $223 |
| Echocardiogram, transthoracic An ultrasound of the heart that uses color to show blood flow, rate, direction, and valve function. |
223 | $162 | $598 |
| 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. |
184 | $11 | $100 |
| 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. |
142 | $123 | $325 |
| 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. |
109 | $64 | $190 |
| Rubidium rb-82, diagnostic, per study dose, up to 60 millicuries | 108 | $404 | $1,189 |
| 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. |
94 | $57 | $247 |
| 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. |
84 | $72 | $175 |
| 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. |
69 | $127 | $300 |
| 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. |
60 | $105 | $351 |
| Nuclear stress test with CT scan A nuclear medicine imaging test that evaluates blood flow in the heart muscle at rest and during stress, performed alongside a concurrent CT scan. |
54 | $1,547 | $2,230 |
| PET scan of heart muscle blood flow A nuclear medicine imaging test that uses positron emission tomography (PET) to evaluate blood flow within the heart muscle. |
54 | $112 | $192 |
| 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. |
46 | $141 | $525 |
| New patient office visit, complex (60-74 min) | 35 | $141 | $375 |
| 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. |
33 | $713 | $2,353 |
| 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. |
33 | $96 | $270 |
| Pacemaker system evaluation Assessment of a pacemaker device, including single, dual, multiple lead, or leadless systems. |
31 | $42 | $146 |
| Continuous ECG monitoring, up to 30 days Continuous heart rhythm monitoring for up to 30 days, including professional review and reporting of the results. |
20 | $21 | $105 |
| Continuous EKG monitoring review, 48-7 days Review and interpretation of continuous external EKG recordings lasting more than 48 hours up to 7 days. |
16 | $17 | $75 |
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.
10.5% high complexity
15.4% medium
74.1% routine
Industry Payment Transparency
Open Payments through 2024 ↗$7,456
Total received (2018-2024)
Avg $1,065/year across 7 years
Top 12% in CA for internal medicine
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
31
Companies
206
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
$5,202 (69.8%)
Scientific / Research
Research funding and grants
$1,763 (23.6%)
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$491 (6.6%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$730
2023
$421
2022
$1,396
2021
$1,705
2020
$2,375
2019
$795
2018
$35
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
Amgen Inc.
$155
Janssen Pharmaceuticals, Inc
$94
Boehringer Ingelheim Pharmaceuticals, Inc.
$85
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)
$78
ABIOMED
$76
PFIZER INC.
$71
E.R. Squibb & Sons, L.L.C.
$51
Philips North America LLC
$34
AstraZeneca Pharmaceuticals LP
$20
SCPHARMACEUTICALS INC.
$18
Kiniksa Pharmaceuticals International, plc
$18
Novartis Pharmaceuticals Corporation
$16
Edwards Lifesciences Corporation
$14
Top 3 companies account for 45.7% of 2024 payments
All-time payments by company (2018-2024) ›
Abbott Laboratories
$2,243
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)
$854
E.R. Squibb & Sons, L.L.C.
$497
AstraZeneca Pharmaceuticals LP
$431
Astellas Pharma US Inc
$398
Novartis Pharmaceuticals Corporation
$372
PFIZER INC.
$361
Janssen Pharmaceuticals, Inc
$337
AtriCure, Inc.
$297
Medtronic, Inc.
$282
Amgen Inc.
$210
ABIOMED
$191
Preventice Services, LLC
$176
Boehringer Ingelheim Pharmaceuticals, Inc.
$160
iRhythm Technologies, Inc.
$136
LivaNova USA, Inc.
$110
Medtronic Vascular, Inc.
$57
Merck Sharp & Dohme LLC
$44
W. L. Gore & Associates, Inc.
$37
Impulse Dynamics (USA) Inc.
$35
Philips North America LLC
$34
Edwards Lifesciences Corporation
$34
Alnylam Pharmaceuticals Inc.
$30
Bayer HealthCare Pharmaceuticals Inc.
$21
HeartFlow, Inc.
$21
SCPHARMACEUTICALS INC.
$18
Kiniksa Pharmaceuticals International, plc
$18
AngioDynamics, Inc.
$15
Baxter Healthcare
$14
Regeneron Healthcare Solutions, Inc.
$13
Otsuka America Pharmaceutical, Inc.
$11
Top 3 companies account for 48.2% of all-time payments
Associated products mentioned in payments ›
(5091) Amb Mon & Diag Und · AMVUTTRA · ASSURITY · Allure CRT Pacemaker · Arcalyst · Assurity Pacemaker · Azure · BG Mini Plus · BRILINTA · CAMZYOS · CONFIRM RX · CRT-Ps · Corlanor · EDWARDS SAPIEN 3 TRANSCATHETER HEART VALVE (THV) · ELIQUIS · ENTRESTO · EPI-SENSE GUIDED COAGULATION SYSTEM WITH VISITRAX · Edwards SAPIEN 3 Ultra Transcatheter Heart Valve · Ellipse ICD · EnSite Precision Cardiac Mapping System · FARXIGA · FFRct · FUROSCIX · Fortify Assura · GORE CARDIOFORM Septal Occluder · HeartMate · Hillrom - Carnation Ambulatory Monitor · Impella · JARDIANCE · Kerendia · LEQVIO · LEXISCAN · LifeSPARC System · LifeVest · Merlin Connectivity and Remote · Optimizer · Optimizer Smart System · PRALUENT · Quadra Allure MP RF CRT Pacemkr · Quadra Assura CRT Defibrillator · Repatha · Resolute · SAMSCA · THORATEC HEARTMATE 3 LVAS IMPLANT KIT · VERQUVO · VYNDAQEL · XARELTO · ZIO Patch · ZIO XT Patch
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 (70%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
Geographic Context
Internal medicine physicians within 10 mi
2,083
Per 100K population
85.0
County median income
$89,672
Nearest hospital
KAISER FOUNDATION HOSPITAL, RIVERSIDE
3.7 mi
3.7 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. Chen is a clinical cardiology specialist, with above-average Medicare volume (top 13% in CA), with low-engagement industry engagement in the top 12% of CA peers.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
Is Dr. Chen experienced with office visit, established patient (30-39 min)?
Based on Medicare claims data, Dr. Chen performed 805 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. Chen receive payments from pharmaceutical companies?
Yes. Dr. Chen received a total of $7,456 from 31 companies across 206 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. Chen's costs compare to other internal medicine physicians in Corona?
Dr. Chen's average Medicare payment per service is $143. 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. Chen) 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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