Dr. Marcy Lim, M.D.
What this data tells you about Dr. Lim
Dr. Marcy Lim is a cardiovascular disease specialist in Humble, TX, with 19 years of NPI registration. Based on federal Medicare data, Dr. Lim performed 7,107 Medicare services across 5,291 unique beneficiaries.
Between the years covered by Open Payments, Dr. Lim received a total of $47,116 from 40 pharmaceutical and/or device companies across 229 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in cardiovascular disease. The majority of payments are classified as financial or ownership interests (royalties, licensing fees, or investment interests). Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Lim 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) | 1,451 | $97 | $282 |
| Electrocardiogram (EKG), 12-lead | 1,013 | $11 | $44 |
| Regadenoson injection (Lexiscan) for heart stress test | 512 | $42 | $300 |
| Blood draw (venipuncture) | 509 | $8 | $10 |
| Office visit, established patient (20-29 min) | 488 | $67 | $194 |
| Ultrasound of leg arteries or artery grafts | 284 | $189 | $663 |
| Ultrasound of both sides of head and neck blood flow | 277 | $141 | $521 |
| Ultrasound study of arm or leg veins with compression and maneuvers | 215 | $142 | $509 |
| Comprehensive metabolic blood panel | 200 | $10 | $36 |
| Complete blood count (CBC) with differential | 176 | $8 | $24 |
| Lipid panel (cholesterol and triglycerides) | 174 | $13 | $42 |
| Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision and review by physician | 173 | $55 | $185 |
| Echocardiogram, transthoracic | 139 | $151 | $539 |
| Prothrombin time test (blood clotting) | 135 | $4 | $16 |
| New patient office visit (45-59 min) | 128 | $121 | $425 |
| Basic metabolic blood panel | 124 | $8 | $28 |
| Rubidium rb-82, diagnostic, per study dose, up to 60 millicuries | 106 | $608 | $894 |
| Nuclear medicine studies of blood flow in heart muscle at rest and with stress with concurrent ct scan | 102 | $1,973 | $5,980 |
| Thyroid stimulating hormone (TSH) test | 91 | $16 | $56 |
| Ultrasound study of one arm or leg veins with compression and maneuvers | 79 | $88 | $511 |
| Electrocardiogram (ecg) up to 30 days continuous with review and report by health care professional | 77 | $20 | $69 |
| Electrocardiogram (ecg) up to 30 days continuous with transmission of patient triggered events with review and report by health care professional | 77 | $681 | $1,824 |
| Chest X-ray, 2 views | 60 | $25 | $85 |
| Technetium tc-99m sestamibi, diagnostic, per study dose | 58 | $79 | $380 |
| Electrocardiogram (ecg) 2-day continuous with review and report by health care professional | 57 | $45 | $231 |
| Nuclear medicine studies of heart muscle at rest and with stress and spect | 54 | $350 | $1,262 |
| Natriuretic peptide (heart and blood vessel protein) level | 49 | $38 | $105 |
| Magnesium level test | 46 | $7 | $21 |
| Hemoglobin A1c test (diabetes monitoring) | 32 | $10 | $30 |
| Hospital follow-up visit, moderate complexity | 32 | $64 | $187 |
| Blood creatinine level | 30 | $5 | $16 |
| Urea nitrogen level to assess kidney function, quantitative | 30 | $4 | $13 |
| Office visit, established patient, complex (40-54 min) | 28 | $132 | $378 |
| Coagulation assessment blood test, plasma or whole blood | 25 | $6 | $19 |
| Heart rhythm recording, analysis, report, review, and interpretation of continous external ekg over more than 48 hours up to 7 days | 20 | $213 | $526 |
| Ultrasound scan of abdominal aorta | 17 | $111 | $295 |
| New patient office visit (30-44 min) | 14 | $84 | $278 |
| Troponin (protein) analysis, quantitative | 13 | $12 | $32 |
| Ultrasound of one leg arteries or artery grafts | 12 | $95 | $389 |
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 ›
Payments are distributed across multiple categories with no single dominant type.
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. Lim is a clinical cardiology specialist, with above-average Medicare volume (top 8% in TX), with mixed engagement industry engagement in the top 11% 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. Lim experienced with office visit, established patient (30-39 min)?
Does Dr. Lim receive payments from pharmaceutical companies?
How do Dr. Lim's costs compare to other cardiologists in Humble?
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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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