Dr. Mark Colligan, MD
What this data tells you about Dr. Colligan
Dr. Mark Colligan is a cardiovascular disease in San Antonio, TX, with 19 years in practice. Based on federal Medicare data, Dr. Colligan performed 6,292 Medicare services across 4,268 unique beneficiaries.
Between the years covered by Open Payments, Dr. Colligan received a total of $146,440 from 34 pharmaceutical and/or device companies across 480 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. Colligan 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) | 1,994 | $86 | $298 |
| Hospital follow-up visit, moderate complexity | 543 | $57 | $202 |
| Electrocardiogram (EKG), 12-lead | 484 | $10 | $58 |
| Echocardiogram, transthoracic | 421 | $131 | $735 |
| Regadenoson injection (Lexiscan) for heart stress test | 412 | $42 | $155 |
| New patient office visit (45-59 min) | 338 | $107 | $456 |
| Remote pacemaker monitoring, 90 days | 324 | $19 | $100 |
| Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision and review by physician | 208 | $46 | $272 |
| Evaluation of cardiac rhythm monitor system, remote up to 30 days | 193 | $18 | $81 |
| Technetium tc-99m sestamibi, diagnostic, per study dose | 163 | $47 | $549 |
| Nuclear medicine studies of heart muscle at rest and with stress and spect | 161 | $328 | $1,360 |
| Evaluation of implantable heart and blood vessel monitoring system, remote up to 30 days | 161 | $15 | $74 |
| Programming of dual lead pacemaker system | 148 | $27 | $118 |
| Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes | 144 | $9 | $77 |
| Initial hospital admission, high complexity | 105 | $130 | $562 |
| Prothrombin time test (blood clotting) | 91 | $4 | $15 |
| Initial hospital admission, moderate complexity | 83 | $86 | $380 |
| Evaluation of single, dual, or multiple lead implantable defibrillator system, remote up to 90 days | 48 | $23 | $181 |
| Heart rhythm recording continous external ekg over more than 48 hours up to 7 days | 41 | $9 | $44 |
| External shock to heart to regulate heart beat | 32 | $80 | $362 |
| Insertion of pacemaker and upper and lower heart chamber electrode | 30 | $388 | $1,480 |
| Cardiac catheterization | 30 | $200 | $920 |
| Programming of multiple lead implantable defibrillator system | 19 | $47 | $193 |
| Insertion of heart rhythm monitor under skin | 18 | $66 | $256 |
| Blood draw (venipuncture) | 16 | $8 | $9 |
| Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision by physician | 15 | $14 | $68 |
| Exercise or drug-induced heart stress test with electrocardiogram (ecg) with review by physician | 15 | $9 | $45 |
| Ultrasound of heart with probe in esophagus, with report | 14 | $81 | $315 |
| Ultrasound of heart blood flow, valves and chambers | 14 | $14 | $57 |
| Ultrasound of heart with color-depicted blood flow, rate and valve function | 14 | $2 | $11 |
| Removal and replacement of dual lead permanent pacemaker | 13 | $266 | $1,022 |
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 (93%) 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 4% 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. Colligan is a cardiac & electrophysiology specialist, with above-average Medicare volume (top 10% in TX), and high industry engagement (speaking/promotional, top 4%), 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
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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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