Medicare Enrolled
Dr. Mary Lim-Fung, DO
Cardiovascular Disease · Humble, TX
Practice pattern: Electrophysiology & Remote
— Practice combining electrophysiology and remote services
Low-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-Fung 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-Fung
Dr. Mary Lim-Fung is a cardiovascular disease specialist in Humble, TX, with 13 years of NPI registration. Based on federal Medicare data, Dr. Lim-Fung performed 836 Medicare services across 745 unique beneficiaries.
Between the years covered by Open Payments, Dr. Lim-Fung received a total of $67,812 from 22 pharmaceutical and/or device companies across 1233 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. Lim-Fung 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.
✓ 13 years in practice
▲ 836 Medicare services
$67,812 industry payments
Medicare Practice Summary
Medicare Utilization ↗836
Medicare services
Bottom 25% in TX for cardiovascular disease
Lower Medicare volume may reflect subspecialty focus, hospital-based work, or a higher share of non-Medicare patients.
745
Unique beneficiaries
$110
Avg. Medicare payment
Medicare patients only (65+ / disabled) · Not a quality rating · How to read this →
~64 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 |
|---|---|---|---|
| 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. |
188 | $11 | $63 |
| 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. |
75 | $87 | $242 |
| Sedation by physician, initial 15 minutes Administration of a drug to induce depression of consciousness by the physician performing a procedure. This code covers the initial 15 minutes of sedation for patients aged 5 years or older. |
65 | $10 | $112 |
| Remote pacemaker/defibrillator monitoring, 90 days Remote evaluation of a pacemaker or implantable defibrillator system within 90 days of the last check. |
55 | $16 | $68 |
| New patient office visit, complex (60-74 min) | 49 | $168 | $352 |
| Remote pacemaker monitoring, 90 days Remote assessment of a pacemaker system, including single, dual, multiple lead, or leadless devices, performed up to 90 days apart. |
41 | $22 | $72 |
| Atrial fibrillation ablation with pulmonary vein isolation A procedure to treat atrial fibrillation by mapping the heart's electrical activity and destroying tissue causing irregular contractions. This is done by isolating the pulmonary veins using catheter-based destruction. |
34 | $740 | $3,917 |
| 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. |
32 | $124 | $289 |
| Pacemaker insertion with heart chamber electrodes A surgical procedure to implant a pacemaker device and place electrodes into the upper and lower chambers of the heart to regulate heart rhythm. |
30 | $391 | $1,701 |
| Remote cardiac rhythm monitor evaluation, up to 30 days Review and analysis of data from a remote cardiac rhythm monitoring system over a period of up to 30 days. |
30 | $20 | $58 |
| Remote monitoring of implantable heart rhythm device Evaluation of data transmitted remotely from an implantable cardiovascular monitor, such as a loop recorder or subcutaneous cardiac rhythm monitor, over a period up to 30 days. |
30 | $28 | $86 |
| Pacemaker programming, dual lead system Adjustment and configuration of a dual-lead pacemaker device to ensure proper operation and settings. |
27 | $60 | $138 |
| 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. |
26 | $139 | $246 |
| Heart rhythm stimulator programming after drug infusion Adjustment of a heart rhythm stimulation device following a drug infusion. This procedure involves reprogramming the device settings to ensure proper function after the medication has been administered. |
22 | $64 | $412 |
| Initial hospital admission, high complexity Initial hospital inpatient or observation care for a new patient involving high-level medical decision making, with at least 75 minutes total time on the date of the encounter. |
19 | $139 | $469 |
| Catheter ablation for abnormal heart rhythm A procedure where catheters are inserted to destroy tissue causing irregular heartbeats. |
18 | $239 | $972 |
| 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. |
17 | $71 | $151 |
| Remote evaluation of implantable defibrillator system Remote assessment of a single, dual, or multiple lead implantable defibrillator system within 90 days of the previous evaluation. |
15 | $29 | $139 |
| Insertion of implantable heart rhythm monitor A small device is placed under the skin to continuously record the heart's electrical activity. This helps detect irregular heart rhythms that may not appear during a standard office visit. |
14 | $53 | $2,822 |
| Left heart catheterization with pacing and arrhythmia induction A procedure where catheters are inserted to record electrical activity and pace the left lower chamber of the heart. It also involves intentionally inducing an abnormal heart rhythm for diagnostic purposes. |
14 | $131 | $458 |
| Initial hospital admission, moderate complexity Initial hospital inpatient or observation care for a new patient involving moderate-level medical decision making, with at least 55 minutes total time on the date of the encounter. |
13 | $104 | $318 |
| Insertion of left lower heart electrode for pacemaker or defibrillator A procedure to place an electrode in the lower part of the left side of the heart. This electrode is used to connect a pacemaker or defibrillator to help regulate the heart's rhythm. |
11 | $365 | $1,294 |
| Insertion of implantable defibrillator system A surgical procedure to place an implantable cardioverter-defibrillator (ICD) device into the body. The device is connected to the heart to monitor heart rhythm and deliver shocks if dangerous arrhythmias occur. |
11 | $704 | $2,773 |
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.
33.3% high complexity
0.0% medium
66.7% routine
Industry Payment Transparency
Open Payments through 2024 ↗$67,812
Total received (2018-2024)
Avg $9,687/year across 7 years
Top 9% in TX for cardiovascular disease
22
Companies
1,233
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.
Meals & Travel
Food, beverages, travel, and lodging — typically low-value
$41,717 (61.5%)
Scientific / Research
Research funding and grants
$26,095 (38.5%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$5,372
2023
$3,388
2022
$9,123
2021
$7,106
2020
$9,421
2019
$6,980
2018
$26,421
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
Abbott Laboratories
$36,167
BOSTON SCIENTIFIC CORPORATION
$17,112
Medtronic Vascular, Inc.
$11,440
Boston Scientific Corporation
$1,207
Biosense Webster, Inc.
$378
Impulse Dynamics (USA) Inc.
$320
CVRx, Inc.
$198
BIOTRONIK INC.
$196
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)
$159
Aziyo Biologics, Inc.
$148
Medtronic, Inc.
$115
SANOFI-AVENTIS U.S. LLC
$111
Novo Nordisk Inc
$72
Bardy Diagnostics, Inc.
$38
AngioDynamics, Inc.
$30
E.R. Squibb & Sons, L.L.C.
$24
AtriCure, Inc.
$21
Lexicon Pharmaceuticals, Inc.
$19
CORDIS US CORP.
$18
ConvaTec Inc.
$14
Becton, Dickinson and Company
$13
Janssen Pharmaceuticals, Inc
$13
Top 3 companies account for 95.4% of total payments
Associated products mentioned in payments ›
ACCENT · ACCOLADE · ACCOLADE SR · ACUITY · ADVISOR · AGILIS · AGILIS HISPRO · ALLURE · ALLURE QUADRA · AMPLATZER AMULET · AMPLATZER Occluders · AQUACEL Ag Advantage Surgical · ASSURITY · AVEIR · AZURE XT DR MRI SURESCAN · Accent Pacemaker · Acticor 7 VR-T DX · Adapta · Advisa · Advisor Catheter · Agilis NxT EP Introducer · Allure CRT Pacemaker · Allure Quadra RF CRT Pacemaker · Ampere RF Ablation Generator · Angio-Seal Vascular Closure Dev · AngioVac · Assurity Pacemaker · Barostim Neo System · CAMZYOS · CARTO 3 · CONFIRM RX · CardioMEMS HF System · Carnation Ambulatory Monitor · Carto 3 System · Carto Smarttouch · Confirm Rx · DURATA · DYNAGEN · Durata Defibrillation ICD Lead · ECM Patch · EMBLEM · EMBLEM S ICD ELECTRODE DELIVERY SYSTEM · EMBLEM SICD ELECTRODE DELIVERY SYSTEM · ENSITE · ENSITE PRECISION · EPI-SENSE GUIDED COAGULATION SYSTEM WITH VISITRAX · Ellipse ICD · EnSite Precision Cardiac Mapping System · Ensite Cardiac Mapping System · FINELINE · FORTIFY ASSURA · FlexAbility Ablation Catheter · Fortify Assura · GALLANT · GENERAL BRADY · GENERAL THERAPIES · GENERAL - BRADY · GENERAL - EP · GENERAL BRADY · GENERAL THERAPIES · General - Therapies · HeartMate 3 Left Ventricular Dev · INGEVITY · INGEVITY MRI · INTELLANAV · ISOFLEX · Inpefa · JOT DX · LATITUDE · LifeVest · MERLIN@HOME · Merlin Connectivity and Remote · Micra · Mynx Venous VCD · OPTIMIZER · OPTISURE · Optimizer Smart System · Optisure Defibrillation ICD Lead · Ozempic · PERCLOSE PROGLIDE · PLASMABLADE(TM) · Pouch · QUADRA ALLURE MP · QUADRA ASSURA · QUARTET · Quadra Allure MP RF CRT Pacemkr · Quadra Assura CRT Defibrillator · Quartet CRT Lead · RESONATE · RHYTHMIA · RotarexS 6 F x 135 cm · SQ RX PULSE GENERATOR · SQRX PULSE GENERATOR · TENDRIL · TactiCath Quartz CFA Catheter · UNIFY ASSURA · ViewFlex Xtra ICE Catheter · ViewMate Intracardiac Echo · WATCHMAN · XARELTO
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 →
Most payments (62%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians. Total industry engagement is in the top 9% for cardiovascular disease in TX.
Equivalent to $8,111 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-Fung is an electrophysiology & remote specialist, with moderate Medicare volume, with low-engagement industry engagement in the top 9% of TX peers.
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-Fung experienced with electrocardiogram (ekg), 12-lead?
Based on Medicare claims data, Dr. Lim-Fung performed 188 electrocardiogram (ekg), 12-lead 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-Fung receive payments from pharmaceutical companies?
Yes. Dr. Lim-Fung received a total of $67,812 from 22 companies across 1,233 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-Fung's costs compare to other cardiologists in Humble?
Dr. Lim-Fung's average Medicare payment per service is $110. 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-Fung) 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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