Dr. Marcus McKenzie, MD
What this data tells you about Dr. McKenzie
Dr. Marcus McKenzie is a cardiovascular disease in Plano, TX, with 20 years in practice. Based on federal Medicare data, Dr. McKenzie performed 5,794 Medicare services across 4,059 unique beneficiaries.
Between the years covered by Open Payments, Dr. McKenzie received a total of $5,057 from 39 pharmaceutical and/or device companies across 275 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in cardiovascular disease. 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. McKenzie 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 |
|---|---|---|---|
| Anticoagulant management of patient taking warfarin | 791 | $8 | $41 |
| Electrocardiogram (EKG), 12-lead | 726 | $10 | $51 |
| Office visit, established patient (30-39 min) | 725 | $86 | $238 |
| EKG interpretation and report | 637 | $6 | $30 |
| Regadenoson injection (Lexiscan) for heart stress test | 532 | $45 | $211 |
| Echocardiogram, transthoracic | 502 | $131 | $729 |
| Blood draw (venipuncture) | 316 | $8 | $17 |
| Prothrombin time test (blood clotting) | 237 | $4 | $26 |
| Office visit, established patient (20-29 min) | 180 | $61 | $168 |
| Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision and review by physician | 178 | $49 | $258 |
| Technetium tc-99m tetrofosmin, diagnostic, per study dose | 108 | $57 | $534 |
| Nuclear medicine studies of heart muscle at rest and with stress and spect | 104 | $326 | $1,599 |
| Hospital follow-up visit, moderate complexity | 86 | $59 | $186 |
| Ultrasound of heart with continuous electrocardiogram (ecg) during rest, exercise and/or drug induced stress with review and report | 84 | $161 | $858 |
| Rubidium rb-82, diagnostic, per study dose, up to 60 millicuries | 76 | $306 | $987 |
| Nuclear medicine studies of blood flow in heart muscle at rest and with stress | 65 | $1,057 | $4,869 |
| New patient office visit (45-59 min) | 49 | $117 | $310 |
| Injection, perflutren lipid microspheres, per ml | 40 | $36 | $277 |
| Hospital follow-up visit, low complexity | 36 | $38 | $101 |
| Ultrasound of heart with color-depicted blood flow, rate and valve function | 30 | $2 | $28 |
| Remote pacemaker monitoring, 90 days | 29 | $20 | $109 |
| Remote pacemaker/defibrillator monitoring, 90 days | 29 | $15 | $84 |
| Initial hospital admission, moderate complexity | 28 | $96 | $352 |
| Telephone medical discussion with physician, 11-20 minutes | 20 | $65 | $212 |
| Office visit, established patient, complex (40-54 min) | 19 | $122 | $335 |
| Heart rhythm review and interpretation of continous external ekg over 8-15 days | 18 | $20 | $98 |
| Ultrasound of heart with probe in esophagus, with report | 18 | $77 | $393 |
| Heart rhythm recording of continous external ekg over 8-15 days | 17 | $9 | $96 |
| Electrocardiogram (ecg) 2-day continuous | 16 | $12 | $105 |
| Electrocardiogram (ecg) 2-day continuous with review by health care professional | 16 | $14 | $85 |
| Ultrasound of heart, follow-up | 16 | $74 | $361 |
| Ultrasound of heart blood flow, valves and chambers | 16 | $13 | $65 |
| Initial hospital admission, high complexity | 15 | $130 | $517 |
| Ultrasound of heart blood flow, valves and chambers, follow-up | 13 | $5 | $155 |
| Routine electrocardiogram (ecg) using at least 12 leads with tracing | 11 | $4 | $48 |
| Heart muscle strain imaging | 11 | $9 | $139 |
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. McKenzie is a clinical cardiology specialist, with above-average Medicare volume (top 12% in TX), and low-engagement industry engagement, 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
Is Dr. McKenzie experienced with anticoagulant management of patient taking warfarin?
Does Dr. McKenzie 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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