Dr. Michael Isaac, M.D.
What this data tells you about Dr. Isaac
Dr. Michael Isaac is a cardiovascular disease in Dallas, TX, with 19 years in practice. Based on federal Medicare data, Dr. Isaac performed 9,241 Medicare services across 6,182 unique beneficiaries.
Between the years covered by Open Payments, Dr. Isaac received a total of $106,921 from 54 pharmaceutical and/or device companies across 476 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in cardiovascular disease. The majority of payments are for speaking programs and promotional activities, reflecting participation in industry-sponsored events. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Isaac 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) | 1,897 | $86 | $238 |
| Regadenoson injection (Lexiscan) for heart stress test | 1,013 | $42 | $199 |
| Ultrasound of both sides of head and neck blood flow | 617 | $130 | $704 |
| Echocardiogram, transthoracic | 596 | $129 | $729 |
| Remote pacemaker/defibrillator monitoring, 90 days | 538 | $15 | $84 |
| Electrocardiogram (EKG), 12-lead | 531 | $10 | $51 |
| Evaluation of implantable heart and blood vessel monitoring system, remote up to 30 days | 367 | $18 | $95 |
| Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision and review by physician | 351 | $47 | $258 |
| Remote pacemaker monitoring, 90 days | 327 | $21 | $109 |
| Telephone medical discussion with physician, 11-20 minutes | 327 | $64 | $212 |
| EKG interpretation and report | 281 | $6 | $30 |
| Technetium tc-99m tetrofosmin, diagnostic, per study dose | 264 | $50 | $525 |
| Programming of dual lead pacemaker system | 251 | $55 | $301 |
| Nuclear medicine studies of heart muscle at rest and with stress and spect | 249 | $327 | $1,599 |
| Evaluation of single, dual, or multiple lead implantable defibrillator system, remote up to 90 days | 214 | $24 | $181 |
| Anticoagulant management of patient taking warfarin | 207 | $7 | $41 |
| Programming of multiple lead implantable defibrillator system | 106 | $74 | $398 |
| Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes | 104 | $9 | $128 |
| Evaluation of implantable heart and blood vessel monitoring system | 103 | $33 | $205 |
| Prothrombin time test (blood clotting) | 100 | $4 | $26 |
| Programming of dual lead implantable defibrillator system | 94 | $67 | $372 |
| New patient office visit (45-59 min) | 81 | $104 | $310 |
| Ultrasound of aorta, vena cava, groin vessels or bypass grafts | 73 | $62 | $431 |
| Cardiac catheterization | 54 | $177 | $1,035 |
| Initial hospital admission, high complexity | 53 | $127 | $517 |
| Heart muscle strain imaging | 50 | $28 | $139 |
| Hospital follow-up visit, high complexity | 43 | $87 | $268 |
| Ultrasound of heart, follow-up | 37 | $19 | $361 |
| Programming of multiple lead pacemaker system | 36 | $59 | $317 |
| Coronary stent placement | 35 | $360 | $2,057 |
| 3d radiographic procedure | 34 | $7 | $227 |
| Injection, perflutren lipid microspheres, per ml | 28 | $35 | $358 |
| Programming of single lead pacemaker system | 23 | $47 | $253 |
| Injection, aminophyllin, up to 250 mg | 23 | $5 | $12 |
| Ultrasound of heart with color-depicted blood flow, rate and valve function | 22 | $2 | $28 |
| Insertion of pacemaker and upper and lower heart chamber electrode | 20 | $376 | $1,984 |
| Routine electrocardiogram (ecg) using at least 12 leads with tracing | 20 | $5 | $48 |
| Insertion of tube in left lower heart chamber, coronary artery and bypass graft for diagnosis with review by radiologist | 18 | $181 | $1,175 |
| Complete ultrasound of aorta, vena cava, groin vessels or bypass grafts | 15 | $133 | $664 |
| Complete ultrasound of abdomen and pelvis artery and vein blood flow | 14 | $184 | $979 |
| Ultrasound of heart blood flow, valves and chambers, follow-up | 13 | $5 | $155 |
| Ultrasound study of arm and leg arteries | 12 | $47 | $299 |
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 ›
The majority of payments (88%) are for speaking programs and promotional activities, which reflect participation in industry-sponsored educational or marketing events. This is common in cardiovascular disease and does not inherently indicate bias, but patients may wish to be aware. Total industry engagement is in the top 5% for cardiovascular disease 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. Isaac is a cardiac & electrophysiology specialist, with above-average Medicare volume (top 4% in TX), and high industry engagement (speaking/promotional, top 5%), with 19 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. Isaac experienced with office visit, established patient (30-39 min)?
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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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