Dr. Christopher Nguyen, M.D.
What this data tells you about Dr. Nguyen
Dr. Christopher Nguyen is an internal medicine specialist in Shenandoah, TX, with 19 years of NPI registration. Based on federal Medicare data, Dr. Nguyen performed 8,333 Medicare services across 4,993 unique beneficiaries.
Between the years covered by Open Payments, Dr. Nguyen received a total of $10,675 from 27 pharmaceutical and/or device companies across 267 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. 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 |
|---|---|---|---|
| Regadenoson injection (Lexiscan) for heart stress test | 1,840 | $43 | $162 |
| Electrocardiogram (EKG), 12-lead | 1,575 | $10 | $52 |
| Office visit, established patient (30-39 min) | 1,273 | $87 | $330 |
| Rubidium rb-82, diagnostic, per study dose, up to 60 millicuries | 463 | $595 | $1,567 |
| Echocardiogram, transthoracic | 456 | $145 | $696 |
| Nuclear medicine studies of blood flow in heart muscle at rest and with stress with concurrent ct scan | 453 | $1,814 | $7,415 |
| Nuclear medicine study of heart muscle blood flow by pet | 426 | $137 | $630 |
| Office visit, established patient (20-29 min) | 282 | $65 | $222 |
| New patient office visit (45-59 min) | 258 | $112 | $505 |
| Evaluation of cardiac rhythm monitor system, remote up to 30 days | 199 | $19 | $82 |
| Remote pacemaker monitoring, 90 days | 122 | $21 | $105 |
| Office visit, established patient, complex (40-54 min) | 118 | $136 | $446 |
| Interrogation device evaluation(s), (remote) up to 30 days; implantable cardiovascular physiologic monitor system, implantable loop recorder system, or subcutaneous cardiac rhythm monitor system, remote data acquisition(s), receipt of transmissions and tec | 107 | $26 | $115 |
| Remote pacemaker/defibrillator monitoring, 90 days | 97 | $16 | $79 |
| Ultrasound study of arm or leg veins with compression and maneuvers | 94 | $143 | $606 |
| Heart rhythm recording, analysis, report, review, and interpretation of continous external ekg over more than 48 hours up to 7 days | 90 | $190 | $788 |
| Ultrasound of both sides of head and neck blood flow | 62 | $146 | $620 |
| Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes | 60 | $10 | $158 |
| New patient office visit, complex (60-74 min) | 49 | $159 | $635 |
| Ultrasonic guidance for blood vessel access | 46 | $11 | $46 |
| Ultrasound study of one arm or leg veins with compression and maneuvers | 43 | $92 | $372 |
| Electrocardiogram (ecg) up to 30 days continuous with review and report by health care professional | 31 | $20 | $81 |
| Electrocardiogram (ecg) up to 30 days continuous with transmission of patient triggered events with review and report by health care professional | 30 | $623 | $2,062 |
| Cardiac catheterization | 30 | $192 | $979 |
| Insertion of heart rhythm monitor under skin | 25 | $3,330 | $15,981 |
| Comprehensive metabolic blood panel | 14 | $10 | $43 |
| Lipid panel (cholesterol and triglycerides) | 14 | $13 | $55 |
| Initial hospital admission, high complexity | 14 | $135 | $625 |
| Complete blood count (CBC) with differential | 13 | $8 | $32 |
| Evaluation of single, dual, multiple lead or leadless pacemaker system | 13 | $27 | $89 |
| New patient office visit (30-44 min) | 13 | $76 | $332 |
| Insertion of pacemaker and upper and lower heart chamber electrode | 12 | $389 | $1,673 |
| Initial hospital admission, moderate complexity | 11 | $101 | $422 |
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 (99%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians. Total industry engagement is in the top 8% for internal medicine in TX.
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 cardiac & electrophysiology specialist, with above-average Medicare volume (top 4% in TX), with low-engagement industry engagement in the top 8% of TX peers, with 19 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 regadenoson injection (lexiscan) for heart stress test?
Does Dr. Nguyen receive payments from pharmaceutical companies?
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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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