Medicare Enrolled
Dr. Marcy Lim, M.D.
Cardiovascular Disease · Humble, TX
Practice pattern: Clinical Cardiology
— Primarily office-based clinical cardiology
Mixed engagement
Very High
DATA COVERAGE
Data in 4 of 4 federal sources
Measures public federal data availability — not provider quality
Informational, not a quality rating.
This page presents federal public records about Dr. Lim from CMS (NPPES, Open Payments, Medicare Provider Utilization, PECOS). It is not medical advice, an endorsement, or a judgment of clinical quality. Always consult the provider directly and a licensed clinician for medical decisions. Read methodology →
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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.
✓ 19 years in practice
▲ Top 8% volume in TX
$47,116 industry payments
Medicare Practice Summary
Medicare Utilization ↗7,107
Medicare services
Top 8% in TX for cardiovascular disease
5,291
Unique beneficiaries
$107
Avg. Medicare payment
Medicare patients only (65+ / disabled) · Not a quality rating · How to read this →
~374 Medicare services per year of practice
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) A follow-up office visit for an existing patient lasting between 30 and 39 minutes. The visit involves medical evaluation and management of the patient's condition. |
1,451 | $97 | $282 |
| Electrocardiogram (EKG), 12-lead A standard heart rhythm test using at least 12 leads to record electrical activity. A healthcare provider interprets the results and provides a written report. |
1,013 | $11 | $44 |
| Regadenoson injection (Lexiscan) for heart stress test An injection of regadenoson, a medication used to stress the heart during diagnostic testing. |
512 | $42 | $300 |
| Blood draw (venipuncture) Insertion of a needle into a vein to collect a blood sample. |
509 | $8 | $10 |
| Office visit, established patient (20-29 min) An office visit for an existing patient lasting between 20 and 29 minutes. The visit involves medical evaluation and management of the patient's condition. |
488 | $67 | $194 |
| Ultrasound of leg arteries or grafts An imaging test that uses sound waves to create pictures of the blood vessels in the legs or any surgical grafts present. |
284 | $189 | $663 |
| Ultrasound of head and neck blood flow, bilateral An ultrasound exam that uses sound waves to visualize and assess blood flow in the vessels of both the head and the neck. |
277 | $141 | $521 |
| Ultrasound of arm or leg veins An ultrasound exam of the veins in the arm or leg. The test uses sound waves to check blood flow and may include compression and other maneuvers. |
215 | $142 | $509 |
| Comprehensive metabolic blood panel A blood test that measures a group of chemicals, including glucose, electrolytes, and kidney and liver function markers. |
200 | $10 | $36 |
| Complete blood count (CBC) with differential An automated laboratory test that measures the levels of red blood cells, white blood cells, and platelets in the blood, including a breakdown of the different types of white blood cells. |
176 | $8 | $24 |
| Lipid panel (cholesterol and triglycerides) A blood test that measures cholesterol and triglyceride levels. |
174 | $13 | $42 |
| Exercise or drug-induced heart stress test with ECG A heart stress test performed using exercise or medication while monitoring the electrocardiogram under physician supervision and review. |
173 | $55 | $185 |
| Echocardiogram, transthoracic An ultrasound of the heart that uses color to show blood flow, rate, direction, and valve function. |
139 | $151 | $539 |
| Prothrombin time test (blood clotting) A laboratory test that measures how long it takes for blood to clot. This procedure evaluates the body's coagulation process. |
135 | $4 | $16 |
| New patient office visit (45-59 min) An initial office visit for a new patient lasting between 45 and 59 minutes. This code covers the total time spent by the physician or qualified healthcare professional on the date of the encounter. |
128 | $121 | $425 |
| Basic metabolic blood panel A blood test that measures a group of basic chemicals, including total calcium levels. |
124 | $8 | $28 |
| Rubidium rb-82, diagnostic, per study dose, up to 60 millicuries | 106 | $608 | $894 |
| Nuclear stress test with CT scan A nuclear medicine imaging test that evaluates blood flow in the heart muscle at rest and during stress, performed alongside a concurrent CT scan. |
102 | $1,973 | $5,980 |
| Thyroid stimulating hormone (TSH) test A blood test that measures the level of thyroid stimulating hormone to evaluate thyroid function. |
91 | $16 | $56 |
| Ultrasound of arm or leg veins An ultrasound exam of the veins in one arm or leg using compression and other maneuvers to assess blood flow and check for blockages. |
79 | $88 | $511 |
| Continuous ECG monitoring, up to 30 days Continuous heart rhythm monitoring for up to 30 days, including professional review and reporting of the results. |
77 | $20 | $69 |
| 30-day continuous ECG with patient-triggered event transmission and review This procedure involves continuous electrocardiogram monitoring for up to 30 days, including the transmission of patient-triggered events. A healthcare professional reviews the data and provides a report. |
77 | $681 | $1,824 |
| Chest X-ray, 2 views An X-ray imaging test of the chest that captures two different angles to visualize the lungs, heart, and chest wall. |
60 | $25 | $85 |
| Technetium Tc-99m sestamibi diagnostic injection A diagnostic injection of technetium Tc-99m sestamibi used for imaging studies. |
58 | $79 | $380 |
| 2-day continuous ECG with review and report A two-day continuous electrocardiogram recording that includes a professional review and written report of the results. |
57 | $45 | $231 |
| Nuclear stress test of heart muscle A nuclear medicine imaging test that evaluates blood flow to the heart muscle at rest and during stress using a special camera. |
54 | $350 | $1,262 |
| Natriuretic peptide level test A blood test that measures the level of natriuretic peptide, a protein produced by the heart and blood vessels. |
49 | $38 | $105 |
| Magnesium level test A blood test to measure the amount of magnesium in your body. This helps check for magnesium deficiency or excess. |
46 | $7 | $21 |
| Hemoglobin A1c test (diabetes monitoring) A blood test that measures your average blood sugar levels over the past two to three months. |
32 | $10 | $30 |
| Hospital follow-up visit, moderate complexity Follow-up hospital visit for an existing patient involving moderate medical decision making. The visit requires at least 35 minutes of time spent on the date of service. |
32 | $64 | $187 |
| Blood creatinine level test A blood test that measures the amount of creatinine, a waste product from muscle wear and tear, to help assess kidney function. |
30 | $5 | $16 |
| Blood urea nitrogen test A blood test that measures the amount of urea nitrogen to assess kidney function. |
30 | $4 | $13 |
| Office visit, established patient, complex (40-54 min) An office or outpatient visit for an existing patient lasting between 40 and 54 minutes. This level of service is determined by the total time spent on the date of the encounter. |
28 | $132 | $378 |
| Coagulation assessment blood test A blood test that measures how long it takes for blood to clot. The sample can be plasma or whole blood. |
25 | $6 | $19 |
| Continuous external EKG monitoring, 48 hours to 7 days This procedure involves recording, analyzing, and interpreting a continuous external electrocardiogram (EKG) over a period of more than 48 hours up to 7 days. |
20 | $213 | $526 |
| Ultrasound of abdominal aorta An imaging test that uses sound waves to create pictures of the abdominal aorta, the large blood vessel that carries blood from the heart to the lower body. |
17 | $111 | $295 |
| New patient office visit (30-44 min) An initial office visit for a new patient lasting between 30 and 44 minutes. This code is used when the total time spent on the date of the encounter falls within this range. |
14 | $84 | $278 |
| Troponin blood test A blood test that measures the amount of troponin protein in your body. Troponin is released into the blood when heart muscle is damaged. |
13 | $12 | $32 |
| Ultrasound of leg arteries or grafts An ultrasound exam that uses sound waves to create images of the arteries in one leg or any grafts present in that leg. |
12 | $95 | $389 |
How to read this data: This reflects Medicare patients only (typically 65+). Payment amounts are what Medicare paid the provider, not your out-of-pocket cost. A higher procedure volume generally indicates more experience with that procedure.
2.0% high complexity
25.1% medium
73.0% routine
Industry Payment Transparency
Open Payments through 2024 ↗$47,116
Total received (2018-2024)
Avg $6,731/year across 7 years
Top 11% in TX for cardiovascular disease
40
Companies
229
Individual payments
All payments are legal and publicly reported · Not evidence of wrongdoing · How to interpret →
Payment profile
Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.
Financial / Ownership
Ownership or investment interests, royalties, and licensing fees
$40,253 (85.4%)
Meals & Travel
Food, beverages, travel, and lodging — typically low-value
$6,863 (14.6%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$927
2023
$1,052
2022
$792
2021
$795
2020
$1,042
2019
$26,821
2018
$15,687
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
Medtronic Vascular, Inc.
$40,253
Abbott Laboratories
$1,919
Janssen Pharmaceuticals, Inc
$480
Novartis Pharmaceuticals Corporation
$382
Bard Peripheral Vascular, Inc.
$359
Amgen Inc.
$288
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)
$274
PFIZER INC.
$274
CVRx, Inc.
$260
E.R. Squibb & Sons, L.L.C.
$250
BARD PERIPHERAL VASCULAR, INC.
$205
Amarin Pharma Inc.
$197
Impulse Dynamics (USA) Inc.
$179
Boston Scientific Corporation
$154
Esperion Therapeutics, Inc.
$153
Astellas Pharma US Inc
$153
Kowa Pharmaceuticals America, Inc.
$138
Boehringer Ingelheim Pharmaceuticals, Inc.
$136
Alnylam Pharmaceuticals Inc.
$118
ABIOMED
$117
Canon Medical Systems USA, Inc.
$99
AstraZeneca Pharmaceuticals LP
$96
Bolton Medical Inc
$66
AtriCure, Inc.
$62
Merck Sharp & Dohme LLC
$60
Tactile Systems Technology Inc
$51
Merck Sharp & Dohme Corporation
$42
Regeneron Pharmaceuticals, Inc.
$38
InfoBionic, Inc
$36
Novo Nordisk Inc
$35
Biosense Webster, Inc.
$34
HeartFlow, Inc.
$33
Regeneron Healthcare Solutions, Inc.
$32
BOSTON SCIENTIFIC CORPORATION
$31
Resmed Corp
$25
Cardiovascular Systems Inc.
$25
Medtronic, Inc.
$19
Althera Pharmaceuticals LLC
$17
NOVARTIS PHARMACEUTICALS CORPORATION
$14
ARBOR PHARMACEUTICALS, INC.
$11
Top 3 companies account for 90.5% of total payments
Associated products mentioned in payments ›
AGILIS HISPRO · AIR 11 · ARCTIC FRONT ADVANCE · AVEIR · Amplia MRI · BELSOMRA · BRILINTA · Barostim Neo System · CAMZYOS · CARDIOMEMS · CARTO 3 · CHANTIX · CONFIRM RX · CROSSER · CRT-Ds · Confirm Rx · Connectivity and Remote care · Corlanor · ELIQUIS · ENSITE · ENSITE PRECISION · ENTRESTO · EPI-SENSE GUIDED COAGULATION SYSTEM WITH VISITRAX · Edarbyclor · Ensite Cardiac Mapping System · FARXIGA · FFRct · Flexitouch Plus · GALLANT · Impella · JANUVIA · JARDIANCE · LEQVIO · LEXISCAN · LIFESTENT · LIFESTREAM · LUTONIX · LifeVest · Livalo · MERLIN@HOME · Merlin Connectivity and Remote · MoMe Kardia · NEXLETOL · NEXLIZET · ONPATTRO · Optimizer · Optimizer Smart System · Ozempic · PET-CT SCANNER · PRALUENT · Pacemakers · Peripheral Orbital Atherectomy System · Relay Grafts · Repatha · Roszet · ULTRAVERSE · VALEO · VENOVO · VERQUVO · VYNDAQEL · Vascepa · VenaSeal · WATCHMAN · WATCHMAN Access System · WATCHMAN FLX · XARELTO · XIENCE SIERRA
Should you be concerned? Payments from pharmaceutical and device companies are legal and common — 57% of U.S. physicians receive at least one. They often reflect legitimate consulting, research, or education. What matters is whether a recommended drug or device appears in your doctor's payment records. If so, consider asking your doctor about it. How to interpret this data →
Payments are distributed across multiple categories with no single dominant type.
Equivalent to $663 per 100 Medicare services performed
Geographic Context
Cardiologists within 10 mi
350
Per 100K population
7.4
County median income
$73,104
Nearest hospital
MEMORIAL HERMANN NORTHEAST HOSPITAL
0.0 mi
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)?
Based on Medicare claims data, Dr. Lim performed 1,451 office visit, established patient (30-39 min) services. Research suggests that higher procedure volume is often associated with better outcomes, particularly for complex procedures. Note that Medicare data only captures patients aged 65 and older, so the total practice volume across all patients is likely higher.
Does Dr. Lim receive payments from pharmaceutical companies?
Yes. Dr. Lim received a total of $47,116 from 40 companies across 229 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common among physicians — 57% of all U.S. physicians receive at least one industry payment. Patients may wish to ask their doctor about these relationships, especially if a recommended drug or device appears in the payment records.
How do Dr. Lim's costs compare to other cardiologists in Humble?
Dr. Lim's average Medicare payment per service is $107. Note that these figures represent what Medicare pays, not your out-of-pocket cost, which depends on your specific insurance plan and deductible. Procedure-level data above shows both what was submitted and what Medicare paid for each service type.
What does Data Coverage mean?
Data Coverage (currently Very High for Dr. Lim) measures how much public federal data is available about a provider. It is not a quality rating. A "Very High" or "High" level means the provider has data across multiple federal sources (NPPES, PECOS, Medicare Utilization, Open Payments), indicating a long track record of practice, Medicare participation, and industry disclosure. A "Low" or "Moderate" level may simply mean the provider is newer, does not see Medicare patients, or has not received any industry payments — none of which are inherently negative. Read our full methodology →
Is this data up to date?
Each data source has its own update cycle. Provider registry data (NPPES) is updated weekly. Medicare enrollment (PECOS) is updated monthly. Medicare practice data has a ~2 year lag — the most recent available is typically 2 years prior. Industry payment data (Open Payments) is published annually, usually in June, covering the prior calendar year. We display the data date prominently on each section so you always know how current it is. See our data freshness policy →
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About this page
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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