Dr. George Mammen, M.D.
What this data tells you about Dr. Mammen
Dr. George Mammen is a cardiovascular disease in Houston, TX, with 19 years in practice. Based on federal Medicare data, Dr. Mammen performed 4,198 Medicare services across 2,911 unique beneficiaries.
Between the years covered by Open Payments, Dr. Mammen received a total of $8,623 from 35 pharmaceutical and/or device companies across 413 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. Mammen 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 |
|---|---|---|---|
| Electrocardiogram (EKG), 12-lead | 718 | $10 | $80 |
| Office visit, established patient (20-29 min) | 686 | $61 | $122 |
| Office visit, established patient (30-39 min) | 542 | $90 | $183 |
| Regadenoson injection (Lexiscan) for heart stress test | 404 | $41 | $221 |
| Echocardiogram, transthoracic | 269 | $151 | $800 |
| Hospital follow-up visit, moderate complexity | 203 | $62 | $276 |
| 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 | 143 | $28 | $150 |
| Evaluation of cardiac rhythm monitor system, remote up to 30 days | 136 | $19 | $50 |
| Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision and review by physician | 129 | $55 | $400 |
| Remote pacemaker monitoring, 90 days | 114 | $21 | $65 |
| Remote pacemaker/defibrillator monitoring, 90 days | 114 | $16 | $60 |
| Rubidium rb-82, diagnostic, per study dose, up to 60 millicuries | 88 | $426 | $544 |
| Nuclear medicine studies of blood flow in heart muscle at rest and with stress with concurrent ct scan | 87 | $1,945 | $7,309 |
| Nuclear medicine study of heart muscle blood flow by pet | 86 | $147 | $487 |
| New patient office visit (45-59 min) | 73 | $128 | $283 |
| Initial hospital admission, moderate complexity | 64 | $104 | $360 |
| EKG interpretation and report | 55 | $7 | $60 |
| Ultrasound of both sides of head and neck blood flow | 53 | $148 | $478 |
| Programming of dual lead pacemaker system | 42 | $26 | $112 |
| Technetium tc-99m sestamibi, diagnostic, per study dose | 38 | $67 | $85 |
| Nuclear medicine studies of heart muscle at rest and with stress and spect | 37 | $347 | $2,800 |
| Ultrasound study of arm or leg veins with compression and maneuvers | 33 | $150 | $495 |
| Ultrasound of leg arteries or artery grafts | 17 | $196 | $850 |
| Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes | 17 | $10 | $132 |
| New patient office visit (30-44 min) | 15 | $74 | $186 |
| Electrocardiogram (ecg) up to 30 days continuous with review and report by health care professional | 12 | $21 | $67 |
| Electrocardiogram (ecg) up to 30 days continuous with transmission of patient triggered events with review and report by health care professional | 12 | $666 | $1,846 |
| Initial hospital admission, high complexity | 11 | $132 | $520 |
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.
Geographic Context
3.8 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. Mammen is a cardiac & electrophysiology specialist, with above-average Medicare volume (top 23% in TX), and low-engagement industry engagement, 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. Mammen experienced with electrocardiogram (ekg), 12-lead?
Does Dr. Mammen receive payments from pharmaceutical companies?
How do Dr. Mammen's costs compare to other cardiovascular diseases in Houston?
What does Data Coverage mean?
Is this data up to date?
Explore related providers
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.
Provider corrections: Provider portal · Privacy questions: Privacy Policy · Terms: Terms of Use · Methodology: Methodology