Medicare Enrolled
Dr. Ethan-Quan Nguyen, MD
Procedural Dermatology Physician · Riverside, 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. 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. Ethan-Quan Nguyen is a procedural dermatology physician in Riverside, CA, with 20 years of NPI registration. Based on federal Medicare data, Dr. Nguyen performed 2,792 Medicare services across 1,352 unique beneficiaries.
Between the years covered by Open Payments, Dr. Nguyen received a total of $18,118 from 29 pharmaceutical and/or device companies across 681 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in procedural dermatology physician. 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.
✓ 20 years in practice
▲ 2,792 Medicare services
$18,118 industry payments
Medicare Practice Summary
Medicare Utilization ↗2,792
Medicare services
Bottom 43% in CA for procedural dermatology physician
1,352
Unique beneficiaries
$94
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~140 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 (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. |
783 | $65 | $110 |
| Destruction of precancerous skin growths, 2-14 This procedure involves the removal or destruction of two to fourteen precancerous skin lesions. It is performed to eliminate abnormal skin cells that have the potential to develop into cancer. |
762 | $5 | $25 |
| Tissue pathology examination, moderate complexity A laboratory test where a pathologist examines tissue samples under a microscope to analyze cellular details. This intermediate complexity procedure involves specialized techniques to identify abnormalities in the tissue. |
223 | $29 | $150 |
| Destruction of skin growths (warts/lesions), 1-14 This procedure involves the removal or destruction of one to fourteen skin growths. It is a minor surgical intervention performed on the skin surface. |
153 | $87 | $150 |
| Destruction of precancerous skin growth, 1 Removal of a single precancerous skin growth. This procedure destroys abnormal skin cells to prevent them from developing into cancer. |
147 | $45 | $120 |
| Skin biopsy, tangential A procedure to remove a sample of the first identified skin growth for laboratory examination. |
134 | $71 | $125 |
| Removal and microscopic exam of growth of head, neck, hands, feet, or genitals, each additional stage, 1-5 tissue blocks | 94 | $347 | $600 |
| 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. |
93 | $95 | $155 |
| New patient office visit (30-44 min) An initial office visit for a new patient lasting between 30 and 44 minutes. This code is used when the total time spent on the date of the encounter falls within this range. |
67 | $69 | $154 |
| Skin growth removal and lab exam, 1-5 blocks This procedure involves the removal of a growth from the head, neck, hands, feet, or genitals. The removed tissue is then examined under a microscope in the laboratory. |
64 | $544 | $800 |
| Additional Mohs surgery stage with microscopic exam This procedure involves the removal and microscopic examination of an additional stage of tissue from the trunk, arms, or legs. It is performed in stages to ensure complete removal of the growth. |
53 | $333 | $600 |
| Additional skin growth biopsy Removal of a sample of an additional skin growth for laboratory examination. This code is used for each extra lesion biopsied during the same session. |
49 | $40 | $75 |
| Destruction of 15 or more precancerous skin growths This procedure involves the removal or destruction of fifteen or more precancerous skin lesions. It is performed to treat abnormal skin cells that have the potential to develop into cancer. |
43 | $131 | $250 |
| Skin growth removal and lab exam, 1-5 blocks A procedure to remove a growth from the trunk, arms, or legs and send 1 to 5 tissue samples to a laboratory for microscopic examination. |
40 | $502 | $800 |
| Skin graft repair, 10 sq cm or less A surgical procedure to repair a wound by transferring a small piece of skin to the affected area. The graft covers wounds on the face, neck, hands, feet, or other specified body parts. |
35 | $534 | $1,043 |
| Skin graft repair, 10 sq cm or less A surgical procedure to repair a wound on the scalp, arms, or legs by transferring a small piece of skin, 10 square centimeters or less, to the affected area. |
20 | $559 | $800 |
| Skin graft for scalp, arm, or leg wound, 10.1-30 sq cm This procedure involves repairing a wound on the scalp, arms, or legs by transferring skin from another area to cover the defect. The graft size is between 10.1 and 30.0 square centimeters. |
20 | $705 | $1,102 |
| 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. |
12 | $122 | $210 |
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.
1.9% high complexity
6.6% medium
91.5% routine
Industry Payment Transparency
Open Payments through 2024 ↗$18,118
Total received (2018-2024)
Avg $2,588/year across 7 years
Top 16% in CA for procedural dermatology physician
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
29
Companies
681
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
$14,768 (81.5%)
Consulting
Expert advisory fees, typically reflecting recognized clinical expertise
$3,170 (17.5%)
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$180 (1.0%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$2,416
2023
$2,385
2022
$2,645
2021
$1,868
2020
$1,494
2019
$1,774
2018
$5,536
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
ABBVIE INC.
$719
PFIZER INC.
$425
LEO Pharma Inc.
$332
Janssen Biotech, Inc.
$279
Ortho Dermatologics, a division of Bausch Health US, LLC
$273
Novartis Pharmaceuticals Corporation
$126
Galderma Laboratories, L.P.
$78
Incyte Corporation
$77
Amgen Inc.
$40
E.R. Squibb & Sons, L.L.C.
$25
Arcutis Biotherapeutics, Inc.
$24
Boehringer Ingelheim Pharmaceuticals, Inc.
$18
Top 3 companies account for 61.1% of 2024 payments
All-time payments by company (2018-2024) ›
UCB, Inc.
$4,044
Janssen Biotech, Inc.
$1,909
ABBVIE INC.
$1,795
LEO Pharma Inc.
$1,668
Novartis Pharmaceuticals Corporation
$1,269
Lilly USA, LLC
$1,076
PFIZER INC.
$1,008
Ortho Dermatologics, a division of Bausch Health US, LLC
$782
Janssen Scientific Affairs, LLC
$649
AbbVie Inc.
$637
AbbVie, Inc.
$571
GENZYME CORPORATION
$400
Celgene Corporation
$382
Incyte Corporation
$348
Galderma Laboratories, L.P.
$300
Regeneron Healthcare Solutions, Inc.
$230
Amgen Inc.
$220
Mayne Pharma Inc.
$183
Taro Pharmaceuticals USA, Inc.
$151
E.R. Squibb & Sons, L.L.C.
$124
Promius Pharma LLC
$106
Sun Pharmaceutical Industries Inc.
$49
Genentech USA, Inc.
$46
Arcutis Biotherapeutics, Inc.
$41
McKesson Medical-Surgical, Inc.
$37
DERMIRA, INC.
$36
Mylan Pharmaceuticals Inc.
$23
Biofrontera Inc.
$20
Boehringer Ingelheim Pharmaceuticals, Inc.
$18
Top 3 companies account for 42.8% of all-time payments
Associated products mentioned in payments ›
0.25% · ABSORICA (isotretinoin) · ADBRY · AKLIEF · ALTRENO · Ameluz · Bimzelx · CIBINQO · COSENTYX · Cimzia · Cloderm Cream · DERMATITIS - DISEASE · DORYX · DUOBRII · DUPIXENT · DUPIXENT DUPILUMAB INJECTION · ENSTILAR · EPIDUO FORTE · EUCRISA · Enbrel · HALOG (Halcinonide Cream · HALOG OINTMENT (Halcinonide Ointment · HUMIRA · Humira · LIBTAYO · OPZELURA · Olux · Otezla · Promiseb Complete · QBREXZA · REMICADE · RINVOQ · SILIQ · SKYRIZI · SPEVIGO · Sernivo Spray · Skyrizi · Sotyktu · TALTZ · TOPICORT (desoximetasone) Topical Spray · TREMFYA · TRIANEX 0.05% · Tremfya · ULTRAVATE (halobetasol propionate) lotion · USP) 0.1% · Winlevi · XOLAIR · Xolair · Zoryve
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 (82%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
Geographic Context
Procedural dermatology physicians within 10 mi
8
Per 100K population
0.3
County median income
$89,672
Nearest hospital
RIVERSIDE COMMUNITY 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 clinical cardiology specialist, with moderate Medicare volume, with low-engagement industry engagement in the top 16% of CA peers, 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
Is Dr. Nguyen experienced with office visit, established patient (20-29 min)?
Based on Medicare claims data, Dr. Nguyen performed 783 office visit, established patient (20-29 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 $18,118 from 29 companies across 681 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 procedural dermatology physicians in Riverside?
Dr. Nguyen's average Medicare payment per service is $94. 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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