Medicare Enrolled
Dr. Vuong Nguyen, M.D.
Internal Medicine · Westminster, 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. Vuong Nguyen is an internal medicine specialist in Westminster, CA, with 20 years of NPI registration. Based on federal Medicare data, Dr. Nguyen performed 4,671 Medicare services across 1,936 unique beneficiaries.
Between the years covered by Open Payments, Dr. Nguyen received a total of $18,575 from 58 pharmaceutical and/or device companies across 781 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. 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 6% volume in CA
$18,575 industry payments
Medicare Practice Summary
Medicare Utilization ↗4,671
Medicare services
Top 6% in CA for internal medicine
1,936
Unique beneficiaries
$60
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~234 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 |
|---|---|---|---|
| Chronic care management, first 20 min/month This service covers the first 20 minutes of clinical staff time directed by a healthcare professional each calendar month to manage chronic conditions. |
1,109 | $48 | $75 |
| Chronic care management, first 30 minutes This service covers the initial 30 minutes of care coordination for patients with two or more chronic conditions. It is provided personally by a healthcare professional each calendar month. |
946 | $66 | $95 |
| 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. |
716 | $107 | $165 |
| Blood draw (venipuncture) Insertion of a needle into a vein to collect a blood sample. |
411 | $8 | $10 |
| 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. |
278 | $100 | $165 |
| Lipid panel (cholesterol and triglycerides) A blood test that measures cholesterol and triglyceride levels. |
257 | $13 | $40 |
| Hemoglobin A1c test (diabetes monitoring) A blood test that measures your average blood sugar levels over the past two to three months. |
235 | $10 | $28 |
| Nursing facility visit, high complexity A follow-up visit by a healthcare provider at a nursing facility for an established patient. The visit involves a high level of medical decision making and takes at least 45 minutes. |
156 | $130 | $185 |
| 2-day continuous ECG with professional review A two-day continuous electrocardiogram recording that includes a review by a healthcare professional. |
117 | $15 | $48 |
| Annual wellness visit, follow-up A follow-up annual wellness visit that includes a personalized prevention plan of service. |
87 | $140 | $165 |
| Creatinine test (kidney function) A blood test that measures the amount of creatinine to assess kidney function or detect muscle injury. |
66 | $5 | $18 |
| Urine microalbumin test A laboratory test that measures the amount of a specific protein called microalbumin in a urine sample. This analysis helps assess kidney function. |
65 | $6 | $22 |
| Hospital discharge management, 30+ min This service covers the care provided by a physician or qualified healthcare professional on the day a patient is discharged from the hospital. It requires more than 30 minutes of total time spent on the day of discharge. |
41 | $97 | $160 |
| 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. |
34 | $12 | $35 |
| Denosumab injection (Prolia/Xgeva) | 28 | $1 | $1 |
| 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. |
25 | $139 | $275 |
| Initial nursing facility care, moderate complexity Initial care provided to a patient in a nursing facility with moderate medical decision making, taking at least 35 minutes. |
23 | $113 | $175 |
| Automated urinalysis An automated laboratory test performed on a urine sample to analyze its chemical and physical properties. The procedure uses machinery to detect various substances and cells within the urine. |
20 | $2 | $10 |
| 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. |
19 | $78 | $115 |
| Transitional care management, high complexity Coordination of care for a patient transitioning from a short-term hospital stay or other facility to home or another care setting. This service addresses a high-complexity medical problem. |
15 | $241 | $350 |
| Complete ultrasound of abdomen A diagnostic imaging test that uses sound waves to create detailed pictures of the organs and structures within the abdomen. |
12 | $107 | $175 |
| Flu vaccine administration This procedure involves the administration of the influenza virus vaccine. It covers the process of delivering the vaccine to the patient. |
11 | $33 | $36 |
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 ↗$18,575
Total received (2018-2024)
Avg $2,654/year across 7 years
Top 6% in CA for internal medicine
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
58
Companies
781
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
$18,456 (99.4%)
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$119 (0.6%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$2,383
2023
$2,809
2022
$2,960
2021
$3,556
2020
$2,351
2019
$2,455
2018
$2,061
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
IRONSHORE PHARMACEUTICALS INC.
$337
Lilly USA, LLC
$330
Amgen Inc.
$322
Boehringer Ingelheim Pharmaceuticals, Inc.
$232
ABBVIE INC.
$171
Gilead Sciences, Inc.
$151
Dexcom, Inc.
$137
Phathom Pharmaceuticals, Inc.
$124
Mylan Specialty L.P.
$110
Astellas Pharma US Inc
$90
AstraZeneca Pharmaceuticals LP
$76
Novo Nordisk Inc
$75
Exact Sciences Corporation
$55
Bayer Healthcare Pharmaceuticals Inc.
$54
Esperion Therapeutics, Inc.
$36
Lexicon Pharmaceuticals, Inc.
$24
Mirum Pharmaceuticals, Inc.
$23
AIMMUNE THERAPEUTICS, INC.
$19
PFIZER INC.
$17
Top 3 companies account for 41.5% of 2024 payments
All-time payments by company (2018-2024) ›
Amgen Inc.
$2,382
Novo Nordisk Inc
$1,991
Gilead Sciences, Inc.
$1,645
AstraZeneca Pharmaceuticals LP
$1,497
Boehringer Ingelheim Pharmaceuticals, Inc.
$1,430
GlaxoSmithKline, LLC.
$846
Lilly USA, LLC
$829
Astellas Pharma US Inc
$669
Amarin Pharma Inc.
$628
AbbVie Inc.
$547
Mylan Specialty L.P.
$504
PFIZER INC.
$451
Sunovion Pharmaceuticals Inc.
$432
Janssen Pharmaceuticals, Inc
$424
Ironwood Pharmaceuticals, Inc
$415
Salix Pharmaceuticals, a division of Bausch Health US, LLC
$394
ABBVIE INC.
$386
IRONSHORE PHARMACEUTICALS INC.
$337
AbbVie, Inc.
$280
Takeda Pharmaceuticals U.S.A., Inc.
$263
Novartis Pharmaceuticals Corporation
$232
Merck Sharp & Dohme Corporation
$224
Ironshore Pharmaceuticals Inc.
$204
Dexcom, Inc.
$137
Phathom Pharmaceuticals, Inc.
$124
Otsuka America Pharmaceutical, Inc.
$109
Exact Sciences Corporation
$101
Supernus Pharmaceuticals, Inc.
$101
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)
$97
Biohaven Pharmaceutical Holding Company Ltd.
$70
RedHill Biopharma Inc.
$68
Adlon Therapeutics L.P.
$67
Ultragenyx Pharmaceutical Inc.
$58
Bayer Healthcare Pharmaceuticals Inc.
$54
Sumitomo Pharma America, Inc.
$44
Merck Sharp & Dohme LLC
$43
Biohaven Pharmaceuticals, Inc.
$41
Allergan Inc.
$37
SUN PHARMACEUTICAL INDUSTRIES INC.
$36
Esperion Therapeutics, Inc.
$36
SANOFI PASTEUR INC.
$28
Lexicon Pharmaceuticals, Inc.
$24
Mirum Pharmaceuticals, Inc.
$23
Radius Health, Inc.
$22
Nestle HealthCare Nutrition Inc.
$22
Corium, LLC
$22
Allergan, Inc.
$19
Dynavax Technologies Corporation
$19
AIMMUNE THERAPEUTICS, INC.
$19
Alkermes, Inc.
$19
Kowa Pharmaceuticals America, Inc.
$18
Paratek Pharmaceuticals, Inc.
$16
NESTLE HEALTHCARE NUTRITION INC.
$16
ARBOR PHARMACEUTICALS, INC.
$16
Avanir Pharmaceuticals, Inc.
$16
Biogen, Inc.
$16
SANOFI-AVENTIS U.S. LLC
$16
Sanofi Pasteur Inc.
$11
Top 3 companies account for 32.4% of all-time payments
Associated products mentioned in payments ›
ADHANSIA XR · ADLARITY · ADVAIR · AIRSUPRA · ANORO · ANORO ELLIPTA · APTIOM · ARISTADA · Aimovig · Amitiza · BREO · BREZTRI · BREZTRI AEROSPHERE · BRILINTA · BYDUREON · BYSTOLIC · CHANTIX · COLOGUARD · COLOGUARD DNA CAPTURE REAGENTS · COMIRNATY · CREON · CRYSVITA · Cholbam · Cologuard Collection Kit · Creon · DUZALLO · Dexcom G6 Transmitter · ELIQUIS · EMGALITY · ENTRESTO · EUCRISA · EVENITY · Edarbi · FARXIGA · FLUBLOK QUADRIVALENT NORTHERN HEMISPHERE · FLUZONE HIGH-DOSE · GARDASIL 9 · GEMTESA · Heplisav-B · JANUVIA · JARDIANCE · JORNAY PM · JYNARQUE · KAPSPARGO · KYNMOBI · Kerendia · LINZESS · LONHALA MAGNAIR · LYRICA · LifeVest · Linzess · Livalo · MOUNJARO · MYRBETRIQ · Mavyret · Motegrity · Movantik · Myrbetriq · NEXLETOL · NUEDEXTA · NURTEC ODT · NUZYRA · Otezla · Ozempic · PAXLOVID · PNEUMOVAX 23 · PREVNAR - 13 · PREVNAR 13 · Prolia · QELBREE · RELISTOR ORAL · RYBELSUS · Repatha · Rybelsus · SHINGRIX · SPIRIVA · SPRAVATO · STIOLTO RESPIMAT · SYMBICORT · TALTZ · TOUJEO · TRADJENTA · TRELEGY ELLIPTA · TRULICITY · Talicia · Tresiba · Trintellix · Tymlos · UBRELVY · VIBERZI · VOQUEZNA · Vascepa · Vemlidy · Veozah · Victoza · XARELTO · XIFAXAN · YUPELRI · Yupelri · ZENPEP
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 (99%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians. Total industry engagement is in the top 6% for internal medicine in CA.
Geographic Context
Internal medicine physicians within 10 mi
3,276
Per 100K population
103.5
County median income
$113,702
Nearest hospital
HUNTINGTON BEACH HOSPITAL
2.2 mi
2.2 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 6% in CA), with low-engagement industry engagement in the top 6% 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 chronic care management, first 20 min/month?
Based on Medicare claims data, Dr. Nguyen performed 1,109 chronic care management, first 20 min/month 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 $18,575 from 58 companies across 781 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 internal medicine physicians in Westminster?
Dr. Nguyen's average Medicare payment per service is $60. 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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