Medicare Enrolled
Dr. Tim Issac, M.D.
Cardiovascular Disease · Duncanville, TX
Practice pattern: Clinical Cardiology
— Primarily office-based clinical cardiology
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. Issac 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. Issac
Dr. Tim Issac is a cardiovascular disease specialist in Duncanville, TX, with 18 years of NPI registration. Based on federal Medicare data, Dr. Issac performed 3,674 Medicare services across 1,922 unique beneficiaries.
Between the years covered by Open Payments, Dr. Issac received a total of $36,036 from 56 pharmaceutical and/or device companies across 837 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. Issac 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.
✓ 18 years in practice
▲ Top 27% volume in TX
$36,036 industry payments
Medicare Practice Summary
Medicare Utilization ↗3,674
Medicare services
Top 27% in TX for cardiovascular disease
1,922
Unique beneficiaries
$120
Avg. Medicare payment
Medicare patients only (65+ / disabled) · Not a quality rating · How to read this →
~204 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. |
721 | $90 | $275 |
| Remote patient monitoring device, 30 days Initial setup of devices for remote monitoring of body functions with daily data transmission or alerts. This service covers the first 30 days of the monitoring period. |
490 | $34 | $128 |
| Remote patient monitoring management, 20 min/month Management based on results from remote vital sign monitoring for the first 20 minutes per calendar month. |
490 | $34 | $128 |
| Regadenoson injection (Lexiscan) for heart stress test An injection of regadenoson, a medication used to stress the heart during diagnostic testing. |
216 | $42 | $150 |
| Hospital follow-up visit, high complexity Subsequent hospital inpatient or observation care for an existing patient involving high-level medical decision making, with at least 50 minutes total time on the date of the encounter. |
213 | $94 | $260 |
| 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. |
149 | $10 | $34 |
| Technetium Tc-99m sestamibi diagnostic injection A diagnostic injection of technetium Tc-99m sestamibi used for imaging studies. |
125 | $74 | $227 |
| Echocardiogram, transthoracic An ultrasound of the heart that uses color to show blood flow, rate, direction, and valve function. |
123 | $144 | $650 |
| Ultrasound guidance for blood vessel access Use of ultrasound imaging to help locate and access a blood vessel. This guidance assists healthcare providers in performing procedures such as inserting IV lines or drawing blood. |
104 | $32 | $825 |
| 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. |
78 | $136 | $410 |
| 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. |
74 | $129 | $384 |
| 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. |
66 | $49 | $153 |
| 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. |
66 | $10 | $89 |
| Additional blood vessel ultrasound evaluation An ultrasound exam of a blood vessel that includes a radiologist's review. This code applies to each additional vessel evaluated beyond the initial one. |
64 | $136 | $1,750 |
| 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. |
64 | $342 | $964 |
| 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. |
56 | $116 | $345 |
| Cardiac catheterization | 51 | $181 | $700 |
| Ultrasound of arm and leg arteries This procedure uses sound waves to create images of the blood vessels in the arms and legs. It allows healthcare providers to examine the structure and blood flow within these arteries. |
51 | $47 | $180 |
| Ultrasound of blood vessel, initial vessel An ultrasound exam of a blood vessel that includes a radiologist's review of the initial vessel. |
50 | $773 | $9,000 |
| 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. |
48 | $191 | $486 |
| Insertion of vena cava tube A procedure to place a tube into the vena cava, the large vein that carries blood to the heart. |
43 | $328 | $6,284 |
| Radiologist review of lower body vein image A radiologist reviews images of the major veins in the lower body to assess their structure and function. |
43 | $90 | $1,000 |
| Vein stent insertion with radiologist review A stent is placed in a vein to keep it open, with review by a radiologist. This is performed on the initial vein treated. |
41 | $2,800 | $37,000 |
| 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. |
39 | $127 | $375 |
| Review by radiologist of both arms and legs veins of both arms or legs image | 37 | $106 | $825 |
| Additional sedation, per 15 minutes Administration of a drug to deepen sedation during a procedure. This code covers each additional 15-minute increment of sedation beyond the initial period. |
35 | $9 | $25 |
| EKG interpretation and report A standard electrocardiogram test that records the heart's electrical activity using at least 12 leads. The service includes a professional interpretation of the results and a written report. |
30 | $6 | $36 |
| Evaluation of implantable heart and blood vessel monitoring system This procedure involves checking the function and data of an implanted device used to monitor heart and blood vessel activity. |
24 | $15 | $100 |
| Coronary stent placement A procedure to insert a stent into a coronary artery or its branch to keep it open, using balloon dilation during the process. |
22 | $436 | $1,000 |
| Radiologist review of abdominal aorta image A radiologist reviews images of the abdominal aorta to evaluate the blood vessel. |
17 | $98 | $1,000 |
| 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. |
17 | $210 | $800 |
| Radiologist review of arm or leg artery images A radiologist reviews images of the arteries in one or both arms or legs to assess blood flow and vessel health. |
14 | $130 | $1,400 |
| 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. |
13 | $142 | $388 |
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.
6.5% high complexity
23.8% medium
69.7% routine
Industry Payment Transparency
Open Payments through 2024 ↗$36,036
Total received (2018-2024)
Avg $5,148/year across 7 years
Top 13% in TX for cardiovascular disease
56
Companies
837
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
$21,112 (58.6%)
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$14,924 (41.4%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$2,828
2023
$2,796
2022
$3,978
2021
$3,317
2020
$1,712
2019
$10,541
2018
$10,863
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
Cardiovascular Systems Inc.
$15,865
BIOTRONIK INC.
$2,979
Bard Peripheral Vascular, Inc.
$1,571
Abbott Laboratories
$1,306
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)
$1,261
Medtronic, Inc.
$1,051
AstraZeneca Pharmaceuticals LP
$977
BOSTON SCIENTIFIC CORPORATION
$963
Boston Scientific Corporation
$958
Edwards Lifesciences Corporation
$853
Novartis Pharmaceuticals Corporation
$769
Amgen Inc.
$711
Janssen Pharmaceuticals, Inc
$674
Merck Sharp & Dohme LLC
$608
E.R. Squibb & Sons, L.L.C.
$518
Amarin Pharma Inc.
$514
Philips Electronics North America Corporation
$512
Shockwave Medical, Inc
$446
ShockWave Medical, Inc
$376
PFIZER INC.
$309
Inari Medical, Inc.
$245
SANOFI-AVENTIS U.S. LLC
$204
ABIOMED
$185
Kestra Medical Technology Services, Inc.
$184
Astellas Pharma US Inc
$163
Gilead Sciences, Inc.
$159
Endologix LLC
$151
Boehringer Ingelheim Pharmaceuticals, Inc.
$150
Bardy Diagnostics, Inc.
$145
Tactile Systems Technology Inc
$137
Impulse Dynamics (USA) Inc.
$113
Chiesi USA, Inc.
$107
Regeneron Healthcare Solutions, Inc.
$102
Lexicon Pharmaceuticals, Inc.
$72
Kiniksa Pharmaceuticals, Ltd.
$67
Braemar Manufacturing, LLC
$65
Siemens Medical Solutions USA, Inc.
$61
Bayer HealthCare Pharmaceuticals Inc.
$54
AngioDynamics, Inc.
$54
ARALEZ PHARMACEUTICALS US INC.
$47
Kowa Pharmaceuticals America, Inc.
$43
ARBOR PHARMACEUTICALS, INC.
$38
Inspire Medical Systems, Inc.
$31
Aziyo Biologics, Inc.
$28
Merck Sharp & Dohme Corporation
$26
CVRx, Inc.
$26
CashFlow Solutions, LLC
$22
Esperion Therapeutics, Inc.
$22
Novo Nordisk Inc
$17
SCPHARMACEUTICALS INC.
$17
Philips North America LLC
$16
Bayer Healthcare Pharmaceuticals Inc.
$14
Contego Medical, Inc
$14
Teleflex LLC
$13
CHIESI USA, INC.
$11
Medtronic Vascular, Inc.
$11
Top 3 companies account for 56.7% of total payments
Associated products mentioned in payments ›
(5044) MCOT · (6571) Eagle Eye · (9281) Turbo Elite · (CK4) MCOT · ARMADA · AURYON LASER SYSTEM 100-120 VAC · AVEIR · Arcalyst · Assure WCD · Astron; Pulsar; AstronPulsar · BRILINTA · Barostim Neo System · Bidil · Biograph Horizon-3R · CAMZYOS · CLEVIPREX · COMET · CONFIRM RX · COREVALVE EVOLUT R · CROSSER · Cardiac Monitoring Suite · Carnation Ambulatory Monitor · Catheter - Turnpike · CoreValve Evolut · Corlanor · Coronary Orbital Atherectomy System · Crosser iQ · DIAMONDBACK PERIPHERAL · Diamondback Coronary · Diamondback Peripheral · ECM · ELIQUIS · EMBLEM · EMBLEM MRI S-ICD · EMBLEM S ICD ELECTRODE DELIVERY SYSTEM · EMBLEM S-ICD ELECTRODE DELIVERY SYSTEM · ENDOCROSS Device · ENDOTAK · ENTRESTO · ESPRIT · EVKEEZA · Edarbi · Edwards SAPIEN 3 Transcatheter Heart Valve · Edwards SAPIEN 3 Ultra Transcatheter Heart Valve · FARXIGA · FEMOSTOP · FFR LINK · FLEXITOUCH · FLOWTRIEVER CATHETER · FUROSCIX · FlexAbility Ablation Catheter · Flexitouch Plus · GENERAL STENTS · GENERAL - BRADY · GENERAL STENTS · GENERAL THERAPIES · General - Therapies · IMPRA · INSPIRE · IVUS Systems · Impella · Inpefa · JARDIANCE · KENGREAL · KENGREAL 50MG/10ML L · Kerendia · LATITUDE · LATITUDE Communicator Power Supply · LEQVIO · LEXISCAN · LIFESTAR · LIFESTENT · LUTONIX · LUTONIX Drug Coated Balloon · LUX DX · LUX-DX · LUX-Dx Insertable Cardiac Monitor · LifeVest · Livalo · Lutonix Drug Coated Balloon · Lympha Press Optimal Plus(US) BT · MOMENTUM · MULTAQ · NC TREK NEO · NEXLETOL · NHancer Rx · OPTIMIZER · Orsiro · Orsiro Mission · Ozempic · PCI Optimization · PERCLOSE PROGLIDE · PERCLOSE PROSTYLE · PK Papyrus · PRADAXA · PRALUENT · PRO-Kinetic Energy · Perclose ProGlide suture mediated closure system · Peripheral Orbital Atherectomy System · PressureWire FFR · Pulsar · Quadra Assura CRT Defibrillator · ReCross · Repatha · S · SAPIEN 3 Ultra RESILIA · SEEKER · SHOCKWAVE IVL SYSTEM WITH THE SHOCKWAVE C2 CORONARY IVL CATHETER · SIDEKICK · SUPERA · SYNERGY · Shockwave IVL System with the Shockwave C2 Coronary IVL Catheter · Supera peripheral stent system · TurboHawk · VENASEAL · VENOVO · VERQUVO · VIGILANT · Vascepa · Vascular Lithotripsy · Verquvo · WATCHMAN · WATCHMAN Access System · WATCHMAN FLX · WOLVERINE · XARELTO · XIENCE SIERRA · XIENCE SKYPOINT · Xience Sierra Coronary Stent System · ZONTIVITY · ZOOM Wireless Transmitter
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 (59%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
Equivalent to $981 per 100 Medicare services performed
Geographic Context
Cardiologists within 10 mi
278
Per 100K population
10.7
County median income
$74,149
Nearest hospital
METHODIST CHARLTON MEDICAL CENTER
2.3 mi
2.3 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. Issac is a clinical cardiology specialist, with above-average Medicare volume (top 27% in TX), with low-engagement industry engagement in the top 13% of TX peers, with 18 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. Issac experienced with office visit, established patient (30-39 min)?
Based on Medicare claims data, Dr. Issac performed 721 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. Issac receive payments from pharmaceutical companies?
Yes. Dr. Issac received a total of $36,036 from 56 companies across 837 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. Issac's costs compare to other cardiologists in Duncanville?
Dr. Issac's average Medicare payment per service is $120. 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. Issac) 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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