Dr. Khoa Nguyen, MD
What this data tells you about Dr. Nguyen
Dr. Khoa Nguyen is a family medicine in Houston, TX, with 20 years in practice. Based on federal Medicare data, Dr. Nguyen performed 3,930 Medicare services across 1,649 unique beneficiaries.
Between the years covered by Open Payments, Dr. Nguyen received a total of $3,091 from 36 pharmaceutical and/or device companies across 198 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in family 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. This is not a quality rating. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.
Medicare Practice Summary
Medicare Utilization ↗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) | 555 | $91 | $166 |
| Nursing facility visit, low complexity | 484 | $59 | $99 |
| Management using the results of remote vital sign monitoring per calendar month, each additional 20 minutes | 452 | $31 | $88 |
| Office visit, established patient (20-29 min) | 398 | $66 | $121 |
| Remote patient monitoring device, 30 days | 305 | $37 | $130 |
| Telephone medical discussion with physician, 5-10 minutes | 301 | $28 | $99 |
| Remote patient monitoring management, 20 min/month | 293 | $37 | $106 |
| Telephone medical discussion with physician, 11-20 minutes | 172 | $55 | $149 |
| Complete ultrasound study of arm and leg arteries | 101 | $97 | $284 |
| Test to measure expiratory airflow and volume | 74 | $21 | $73 |
| Electrocardiogram (EKG), 12-lead | 72 | $11 | $36 |
| Ultrasound study of arm and leg arteries | 58 | $58 | $182 |
| Complete ultrasound of within the brain blood flow | 50 | $170 | $600 |
| Ultrasound of within the brain blood flow following medication | 50 | $183 | $650 |
| Ultrasound of within the brain blood flow for blood clots | 50 | $133 | $700 |
| Testing of autonomic nervous system function and heart rate response to deep breathing | 47 | $71 | $180 |
| Testing of autonomic (sympathetic) nervous system function | 47 | $100 | $268 |
| Nursing facility visit, moderate complexity | 38 | $85 | $135 |
| Annual wellness visit, follow-up | 37 | $129 | $196 |
| Test for balance and posture | 34 | $35 | $200 |
| New patient office visit (45-59 min) | 22 | $132 | $258 |
| Evaluation of brain response to sound for diagnosis of nervous system disorders with interpretation and report | 21 | $68 | $170 |
| Electrocardiogram (ecg) 1 to 3 leads with review by physician | 20 | $10 | $28 |
| Ultrasound of both sides of head and neck blood flow | 20 | $137 | $300 |
| Measurement of brain wave activity (eeg), awake and drowsy | 20 | $294 | $760 |
| Measurement of nerve conduction using visual stimulation testing with report | 20 | $54 | $140 |
| Measurement of brain wave activity (eeg), digital analysis | 20 | $223 | $534 |
| Evaluation of neuropsychological test, first hour | 20 | $99 | $272 |
| Echocardiogram, transthoracic | 19 | $143 | $313 |
| Complete ultrasound scan of abdomen | 18 | $81 | $297 |
| Evaluation and testing for balance with recording | 18 | $88 | $210 |
| Administration of psychological or neuropsychological test by technician, each additional 30 minutes | 18 | $28 | $80 |
| Ultrasound scan of head and neck soft tissue | 17 | $76 | $293 |
| Administration of psychological or neuropsychological test by technician, first 30 minutes | 17 | $27 | $80 |
| Ultrasound of leg arteries or artery grafts | 16 | $191 | $329 |
| Vemp testing of upper and lower branches of inner ear nerve with interpretation and report | 13 | $108 | $280 |
| Test to assess balance during warm and cool irrigation in both ears | 13 | $33 | $84 |
Industry Payment Transparency
Open Payments through 2024 ↗Payment profile
Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
Payments by company (2024)
Associated products mentioned in payments ›
Most payments (100%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
Geographic Context
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 measures how much public data is available about a provider — not how good they are. How we calculate this →
Summary
Dr. Nguyen is a clinical cardiology specialist, with above-average Medicare volume (top 5% in TX), and high industry engagement (low-engagement, top 20%), with 20 years of practice experience.
This summary is auto-generated from federal data. It describes data availability and patterns — not clinical quality. Read our methodology →
Frequently Asked Questions
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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. The Transparency Score measures 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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