Dr. Hai Nguyen, M.D.
What this data tells you about Dr. Nguyen
Dr. Hai Nguyen is a radiation oncology specialist in Houston, TX, with 20 years of NPI registration. Based on federal Medicare data, Dr. Nguyen performed 7,772 Medicare services across 1,885 unique beneficiaries.
Between the years covered by Open Payments, Dr. Nguyen received a total of $739 from 9 pharmaceutical and/or device companies across 13 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in radiation oncology. 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 |
|---|---|---|---|
| Contrast dye for imaging (iodine-based) | 5,743 | $0 | $0 |
| Chest X-ray, 2 views | 266 | $24 | $36 |
| 3D screening mammography (tomosynthesis) | 177 | $54 | $54 |
| Screening mammography | 175 | $132 | $132 |
| MRI contrast dye injection (gadoterate) | 172 | $0 | $0 |
| Chest X-ray, 1 view | 153 | $7 | $47 |
| Nuclear medicine study from skull base to mid-thigh with ct scan | 139 | $93 | $817 |
| CT scan of chest, without contrast | 94 | $57 | $304 |
| Complete ultrasound scan of abdomen | 72 | $45 | $233 |
| CT scan of abdomen and pelvis with contrast | 63 | $145 | $604 |
| Ct scan of heart with evaluation of blood vessel calcium | 63 | $68 | $106 |
| Ct scan of abdomen and pelvis before and after contrast | 55 | $122 | $755 |
| Ct scan of chest with contrast | 52 | $50 | $389 |
| Ultrasound scan of head and neck soft tissue | 42 | $59 | $135 |
| Ct scan of abdomen and pelvis without contrast | 41 | $88 | $625 |
| Limited ultrasound scan of abdomen | 36 | $53 | $118 |
| X-ray of hand, minimum of 3 views | 32 | $21 | $41 |
| Complete ultrasound scan behind abdominal cavity | 28 | $46 | $205 |
| Knee X-ray, 3 views | 27 | $29 | $42 |
| Ct scan of upper spine without contrast | 26 | $34 | $279 |
| Mri scan of pelvis before and after contrast | 25 | $106 | $544 |
| Foot X-ray, 3+ views | 24 | $21 | $44 |
| Ultrasound study of arm or leg veins with compression and maneuvers | 24 | $27 | $245 |
| Mri scan of abdomen before and after contrast | 23 | $189 | $462 |
| Complete ultrasound scan of 1 breast | 21 | $96 | $135 |
| Shoulder X-ray, 2+ views | 19 | $24 | $37 |
| Hip X-ray, 2-3 views | 19 | $33 | $49 |
| CT scan of head/brain, without contrast | 17 | $65 | $129 |
| Diagnostic digital breast tomosynthesis, unilateral or bilateral (list separately in addition to 77065 or 77066) | 17 | $44 | $54 |
| Mri scan of brain without contrast | 16 | $58 | $390 |
| Ct scan of chest before and after contrast | 16 | $55 | $450 |
| X-ray lower and sacral spine, minimum of 6 views | 16 | $46 | $64 |
| X-ray of ankle, minimum of 3 views | 15 | $24 | $48 |
| Nuclear medicine study of bone and/or joint whole body | 15 | $32 | $282 |
| X-ray of lower and sacral spine, minimum of 4 views | 13 | $39 | $52 |
| Ct scan of blood vessels of chest with contrast | 12 | $151 | $409 |
| Imaging for evaluation of swallowing function | 12 | $21 | $150 |
| Ultrasound study of one arm or leg veins with compression and maneuvers | 12 | $18 | $154 |
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 mixed practice specialist, with above-average Medicare volume (top 10% in TX), with low-engagement industry engagement, with 20 years of NPI registration.
This summary is auto-generated from federal data. It describes data availability and patterns — not clinical quality. Read our methodology →
Frequently Asked Questions
Is Dr. Nguyen experienced with contrast dye for imaging (iodine-based)?
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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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