Medicare Enrolled
Dr. Tien Nguyen, MD
Dermatology · Fountain Valley, CA
Practice pattern: Clinical Cardiology
— Primarily office-based clinical cardiology
Speaking/Promotional
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. Tien Nguyen is a dermatology specialist in Fountain Valley, CA, with 20 years of NPI registration. Based on federal Medicare data, Dr. Nguyen performed 6,312 Medicare services across 3,434 unique beneficiaries.
Between the years covered by Open Payments, Dr. Nguyen received a total of $1,057,233 from 59 pharmaceutical and/or device companies across 2477 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in dermatology. The majority of payments are for speaking programs and promotional activities, reflecting participation in industry-sponsored events. 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
▲ Top 18% volume in CA
$1,057,233 industry payments
Medicare Practice Summary
Medicare Utilization ↗6,312
Medicare services
Top 18% in CA for dermatology
3,434
Unique beneficiaries
$71
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~316 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. |
1,440 | $64 | $136 |
| 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. |
1,336 | $5 | $11 |
| 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. |
869 | $108 | $211 |
| 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. |
736 | $85 | $197 |
| Destruction of skin growth, 15 or more growths | 423 | $104 | $229 |
| 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. |
342 | $46 | $114 |
| 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. |
283 | $64 | $181 |
| 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. |
158 | $133 | $274 |
| Laser treatment for inflammatory skin disease, less than 250 sq cm This procedure uses a laser to treat inflammatory skin conditions covering an area smaller than 250 square centimeters. |
151 | $142 | $272 |
| 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. |
141 | $135 | $283 |
| Skin growth biopsy, first lesion A minor surgical procedure to remove a small sample of tissue from a skin growth for laboratory examination. |
92 | $126 | $268 |
| Skin biopsy, tangential A procedure to remove a sample of the first identified skin growth for laboratory examination. |
91 | $85 | $177 |
| 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. |
45 | $46 | $89 |
| Injection into skin growths, 1-7 A procedure involving the injection of medication into one to seven skin growths. |
39 | $49 | $98 |
| Incisional biopsy of additional skin growth A surgical procedure to remove a small sample of tissue from an extra skin growth for laboratory examination. |
38 | $64 | $124 |
| Drug injection, under skin or into muscle A procedure involving the administration of a medication or substance via injection into the subcutaneous tissue or muscle. |
36 | $12 | $24 |
| Complicated wound repair of trunk, 2.6-7.5 cm A surgical procedure to close a complex wound on the trunk that measures between 2.6 and 7.5 centimeters in length. |
21 | $328 | $689 |
| 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. |
21 | $478 | $1,134 |
| Office visit, established patient (10-19 min) An office visit for an existing patient lasting 10 to 19 minutes. The visit involves medical evaluation and management of the patient's condition. |
15 | $44 | $95 |
| Intermediate wound repair, 2.5 cm or less This procedure involves stitching a wound on the scalp, underarms, trunk, arms, or legs that is 2.5 centimeters or smaller. It includes cleaning the wound and closing it with sutures to promote healing. |
13 | $218 | $444 |
| Intermediate wound repair, face or mouth, 2.5 cm or less A medical procedure to close a wound on the face, ears, eyelids, nose, lips, or mouth that is 2.5 centimeters or smaller. This type of repair involves more than simple closure but is less complex than a major repair. |
11 | $248 | $481 |
| Complex wound repair, 1.1-2.5 cm A surgical procedure to close a complex wound measuring between 1.1 and 2.5 centimeters on areas such as the face, neck, hands, or feet. |
11 | $269 | $669 |
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.
Industry Payment Transparency
Open Payments through 2024 ↗$1,057,233
Total received (2018-2024)
Avg $151,033/year across 7 years
Top 1% in CA for dermatology
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
59
Companies
2,477
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.
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$953,344 (90.2%)
Consulting
Expert advisory fees, typically reflecting recognized clinical expertise
$89,605 (8.5%)
Meals & Travel
Food, beverages, travel, and lodging — typically low-value
$14,284 (1.4%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$258,980
2023
$228,040
2022
$151,483
2021
$66,743
2020
$55,699
2019
$138,949
2018
$157,340
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
UCB, Inc.
$43,783
ABBVIE INC.
$41,478
Janssen Biotech, Inc.
$25,669
Amgen Inc.
$23,806
GENZYME CORPORATION
$22,544
E.R. Squibb & Sons, L.L.C.
$20,518
Dermavant Sciences, Inc.
$17,647
Arcutis Biotherapeutics, Inc.
$16,348
LEO Pharma Inc.
$14,581
Galderma Laboratories, L.P.
$10,513
Regeneron Healthcare Solutions, Inc.
$10,460
Incyte Corporation
$9,642
Lilly USA, LLC
$443
Ortho Dermatologics, a division of Bausch Health US, LLC
$236
Novartis Pharmaceuticals Corporation
$165
Acera Surgical, Inc.
$159
SUN PHARMACEUTICAL INDUSTRIES INC.
$157
Gilead Sciences, Inc.
$149
RedHill Biopharma Inc.
$144
PFIZER INC.
$123
Biofrontera Inc.
$100
Eli Lilly and Company
$78
BIOTISSUE HOLDINGS INC.
$77
Janssen Scientific Affairs, LLC
$60
Avita Medical Americas, Llc
$34
Fresenius Kabi USA, LLC
$27
Boehringer Ingelheim Pharmaceuticals, Inc.
$20
Almirall LLC
$18
Top 3 companies account for 42.8% of 2024 payments
All-time payments by company (2018-2024) ›
ABBVIE INC.
$155,618
Janssen Scientific Affairs, LLC
$85,898
Novartis Pharmaceuticals Corporation
$82,048
UCB, Inc.
$79,667
GENZYME CORPORATION
$79,124
Amgen Inc.
$67,239
Janssen Biotech, Inc.
$58,173
LEO Pharma Inc.
$57,402
Celgene Corporation
$54,123
Regeneron Healthcare Solutions, Inc.
$48,298
Incyte Corporation
$44,560
Dermavant Sciences, Inc.
$40,576
PFIZER INC.
$36,420
Arcutis Biotherapeutics, Inc.
$35,226
E.R. Squibb & Sons, L.L.C.
$34,735
AbbVie, Inc.
$22,560
Sun Pharmaceutical Industries Inc.
$20,063
AbbVie Inc.
$11,305
Galderma Laboratories, L.P.
$10,669
Almirall LLC
$8,695
Ortho Dermatologics, a division of Bausch Health US, LLC
$7,216
Pfizer Inc.
$5,050
Merck Sharp & Dohme Corporation
$3,245
Lilly USA, LLC
$2,828
SUN PHARMACEUTICAL INDUSTRIES INC.
$1,946
SANOFI-AVENTIS U.S. LLC
$591
EPI Health, LLC
$460
Mayne Pharma Inc.
$387
Gilead Sciences, Inc.
$369
Taro Pharmaceuticals USA, Inc.
$269
Biofrontera Inc.
$225
Encore Dermatology Inc.
$198
Acera Surgical, Inc.
$159
VYNE Pharmaceuticals Inc.
$149
RedHill Biopharma Inc.
$144
Medimetriks Pharmaceuticals, Inc.
$144
Merz North America, Inc.
$135
AstraZeneca Pharmaceuticals LP
$130
Janssen Research & Development, LLC
$125
Journey Medical Corporation
$95
Salix Pharmaceuticals, a division of Bausch Health US, LLC
$87
Regeneron Pharmaceuticals, Inc.
$86
Eli Lilly and Company
$78
BIOTISSUE HOLDINGS INC.
$77
Genentech USA, Inc.
$72
PruGen, Inc. Pharmaceuticals
$72
Promius Pharma LLC
$72
Boehringer Ingelheim Pharmaceuticals, Inc.
$58
MAYNE PHARMA INC.
$54
Glenmark Therapeutics Inc.
$53
Fresenius Kabi USA, LLC
$44
Stryker Corporation
$40
Mylan Pharmaceuticals Inc.
$38
Avita Medical Americas, Llc
$34
ARGENX US, INC.
$27
Abbott Laboratories
$25
TARO PHARMACEUTICALS USA, INC.
$24
Paratek Pharmaceuticals, Inc.
$21
Sensus Healthcare, Inc.
$7
Top 3 companies account for 30.6% of all-time payments
Associated products mentioned in payments ›
0.25% · ABSORICA · ABSORICA (isotretinoin) · ABSORICA LD · ADBRY · AKLIEF · ALTRENO · AMELUZ · AMZEEQ · Absorica LD · Aczone · Ameluz · BRILINTA · BRYHALI · Bimzelx · CIBINQO · CLODERM · COSENTYX · CUSTOM IMPLANTS · CYLTEZO · Cabtreo · Ceracade · Cimzia · Clindamycin Phosphate and Benzoyl Peroxide · Cordran · DALVANCE · DERMATITIS - DISEASE · DISEASE STATE · DORYX · DUOBRII · DUPIXENT · DUPIXENT DUPILUMAB INJECTION · DURAMATRIX · ENSTILAR · EPIDUO FORTE · EPSOLAY · EUCRISA · Enbrel · Erivedge · FABIOR · HALOG (Halcinonide Cream · HALOG OINTMENT (Halcinonide Ointment · HUMIRA · HYLATOPIC · Halog · Humira · ILUMYA · ILUMYA (tildrakizumab-asmn) injection · Ilumya · Impoyz · JUBLIA · Klisyri · LEVULAN KERASTICK · LIBTAYO · Mupirocin Cream · NUZYRA · Neo-Synalar · Neo-Synalar Cream Kit · OLUMIANT · OPZELURA · Olux · Otezla · Ozanimod · PICATO · Proclaim IPG · Promiseb Complete · REMICADE · RETIN-A-MICRO · RINVOQ · Recell · Restrata Wound Matrix · SEYSARA · SILIQ · SIVEXTRO · SKYRIZI · SPEVIGO · Sernivo Spray · Seysara · Sitavig · Skyrizi · Sotyktu · TALTZ · TOPICORT (desoximetasone) Topical Spray · TREMFYA · TRULANCE · Talicia · TargaDox · Tremfya · Trianex · ULTRAVATE (halobetasol propionate) lotion · USP) 0.1% · VTAMA · Veltin · Vemlidy · Verdeso · Winlevi · XELJANZ · XOLAIR · Xolegel · ZILXI · 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 →
The majority of payments (90%) are for speaking programs and promotional activities, which reflect participation in industry-sponsored educational or marketing events. This is common in dermatology and does not inherently indicate bias, but patients may wish to be aware. Total industry engagement is in the top 1% for dermatology in CA.
Geographic Context
Dermatologists within 10 mi
300
Per 100K population
9.5
County median income
$113,702
Nearest hospital
UCI HEALTH - FOUNTAIN VALLEY
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 above-average Medicare volume (top 18% in CA), with speaking/promotional industry engagement in the top 1% 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 1,440 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 $1,057,233 from 59 companies across 2,477 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 dermatologists in Fountain Valley?
Dr. Nguyen's average Medicare payment per service is $71. 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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