Medicare Enrolled
Dr. Sam Kalioundji, MD
Cardiovascular Disease · Northridge, CA
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. Kalioundji 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. Kalioundji
Dr. Sam Kalioundji is a cardiovascular disease specialist in Northridge, CA, with 17 years of NPI registration. Based on federal Medicare data, Dr. Kalioundji performed 36,615 Medicare services across 14,755 unique beneficiaries.
Between the years covered by Open Payments, Dr. Kalioundji received a total of $35,274 from 50 pharmaceutical and/or device companies across 646 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. Kalioundji is Very High — reflecting how much public federal data is available about this provider. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.
✓ 17 years in practice
▲ Top 0% volume in CA
$35,274 industry payments
Medicare Practice Summary
Medicare Utilization ↗36,615
Medicare services
Top 0% in CA for cardiovascular disease
14,755
Unique beneficiaries
$111
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~2,154 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 |
|---|---|---|---|
| Remote patient monitoring management, 20 min/month Management based on results from remote vital sign monitoring for the first 20 minutes per calendar month. |
6,167 | $42 | $180 |
| 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. |
4,558 | $102 | $301 |
| 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. |
4,234 | $110 | $217 |
| Remote vital sign monitoring management, each additional 20 minutes This code covers the time spent by a provider managing patient data from remote vital sign monitoring devices. It applies to each additional 20-minute increment beyond the initial monthly service period. |
4,020 | $34 | $120 |
| 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. |
2,856 | $46 | $200 |
| Regadenoson injection (Lexiscan) for heart stress test An injection of regadenoson, a medication used to stress the heart during diagnostic testing. |
1,250 | $43 | $125 |
| 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. |
1,156 | $13 | $75 |
| 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. |
1,144 | $148 | $425 |
| Echocardiogram, transthoracic An ultrasound of the heart that uses color to show blood flow, rate, direction, and valve function. |
1,003 | $161 | $850 |
| Critical care, first 30-74 min Emergency medical care for a critically ill or injured patient lasting between 30 and 74 minutes. This service involves direct patient care and medical decision making to stabilize the patient. |
826 | $181 | $648 |
| Technetium Tc-99m sestamibi diagnostic injection A diagnostic injection of technetium Tc-99m sestamibi used for imaging studies. |
667 | $113 | $230 |
| 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. |
626 | $176 | $350 |
| 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. |
607 | $10 | $75 |
| Intravenous drug injection A procedure involving the administration of a medication or substance directly into a vein. |
561 | $35 | $120 |
| 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. |
560 | $59 | $300 |
| 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. |
548 | $222 | $449 |
| 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. |
544 | $141 | $350 |
| Continuous ECG monitoring, up to 30 days Continuous heart rhythm monitoring for up to 30 days, including professional review and reporting of the results. |
530 | $22 | $75 |
| 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. |
528 | $806 | $2,950 |
| 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. |
456 | $22 | $100 |
| Rubidium rb-82, diagnostic, per study dose, up to 60 millicuries | 453 | $417 | $1,250 |
| 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. |
337 | $414 | $1,270 |
| Drug infusion during cardiac catheterization Administration of medication through a catheter inserted into the heart during a cardiac catheterization procedure. |
274 | $83 | $275 |
| 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. |
268 | $136 | $330 |
| Cardiac catheterization | 235 | $182 | $800 |
| Emergency department visit, high complexity An emergency department visit involving a high level of medical decision making. |
214 | $147 | $549 |
| 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. |
197 | $25 | $75 |
| Remote physiologic monitoring setup and education Initial setup of remote monitoring equipment and patient education on its use. |
166 | $18 | $77 |
| 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. |
145 | $68 | $255 |
| 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. |
144 | $1,743 | $4,500 |
| PET scan of heart muscle blood flow A nuclear medicine imaging test that uses positron emission tomography (PET) to evaluate blood flow within the heart muscle. |
144 | $125 | $500 |
| Exercise or drug-induced heart stress test with ECG A heart stress test performed using exercise or medication while monitoring the electrocardiogram, with physician review of the results. |
100 | $12 | $100 |
| Home health plan of care re-certification A physician reviews the patient's status and contacts the home health agency to re-certify the plan of care without the patient being present. |
96 | $36 | $150 |
| 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. |
93 | $450 | $1,259 |
| Nuclear stress test of heart muscle A nuclear medicine imaging test that evaluates blood flow to the heart muscle while at rest and during stress. |
81 | $1,364 | $3,400 |
| Echocardiogram, transthoracic An ultrasound test that uses sound waves to create images of the heart's blood flow, valves, and chambers. |
76 | $47 | $198 |
| Echocardiogram with color Doppler An ultrasound of the heart that uses color imaging to visualize blood flow, measure flow rate, and assess valve function. |
76 | $22 | $247 |
| Stress echocardiogram with ECG monitoring An ultrasound of the heart performed while monitoring heart rhythm during rest, exercise, or medication-induced stress, followed by a review and report of the findings. |
75 | $211 | $843 |
| 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. |
59 | $12 | $53 |
| Stent placement and plaque removal in one vessel A procedure to clear plaque and blood clots from a single blood vessel, followed by the insertion of a stent and/or balloon dilation to keep the vessel open. |
56 | $539 | $1,400 |
| Ultrasound of heart blood vessel or graft An ultrasound exam to evaluate blood flow in a heart blood vessel or graft, including a radiologist's review of the initial vessel. |
46 | $78 | $300 |
| Pacemaker programming, dual lead system Adjustment and configuration of a dual-lead pacemaker device to ensure proper operation and settings. |
39 | $71 | $150 |
| 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. |
36 | $4,193 | $12,300 |
| Intravascular ultrasound of heart vessel, initial An ultrasound procedure used to evaluate a blood vessel within the heart during a diagnostic or treatment procedure. |
36 | $60 | $300 |
| 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. |
36 | $76 | $151 |
| Heart stimulation test with drug or exercise A diagnostic study that uses medication or physical exercise to stimulate the heart for evaluation. |
33 | $75 | $250 |
| Home health plan of care certification Certification by a physician or allowed practitioner for Medicare-covered home health services under a home health plan of care. This includes contacting the home health agency and reviewing reports of patient status required by physicians. |
30 | $42 | $150 |
| Aortography with contrast and radiologist review An imaging procedure using contrast dye to visualize the aorta above the heart valve, including professional review by a radiologist. |
28 | $31 | $110 |
| Transesophageal echocardiogram An ultrasound of the heart performed using a probe inserted into the esophagus to obtain detailed images of heart structures and function. |
26 | $91 | $300 |
| Insertion of tube in left lower heart chamber, coronary artery and bypass graft for diagnosis with review by radiologist | 23 | $197 | $726 |
| Radiologist review of abdominal aorta and leg artery images A radiologist reviews images of the abdominal aorta and the arteries in both legs. This process involves analyzing the visual data to assess the condition of these blood vessels. |
22 | $79 | $300 |
| Pacemaker/ICD evaluation at implant or replacement Assessment of a single or dual chamber pacing cardioverter-defibrillator and generator during the initial implantation or replacement procedure. |
21 | $141 | $738 |
| Insertion of non-tunneled central venous catheter A procedure to place a central venous catheter for infusion in patients aged 5 years or older. The catheter is inserted directly into a large vein without being tunneled under the skin. |
19 | $70 | $300 |
| Insertion of tube in right and left heart chambers and coronary artery for diagnosis with review by radiologist | 18 | $289 | $794 |
| Aortic tube insertion A procedure to place a tube into the aorta, the main artery carrying blood from the heart to the rest of the body. |
17 | $84 | $450 |
| Coronary angiography A procedure to insert a tube into a coronary artery to capture diagnostic images of the heart's blood vessels. |
16 | $98 | $700 |
| Radiologist review of arm or leg vein image A radiologist reviews an image of a vein in one arm or leg. |
14 | $42 | $100 |
| Arterial plaque removal in leg A procedure to remove plaque buildup from the arteries in the leg to restore blood flow. |
13 | $484 | $1,500 |
| 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. |
12 | $418 | $1,500 |
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.
5.6% high complexity
15.7% medium
78.7% routine
Industry Payment Transparency
Open Payments through 2024 ↗$35,274
Total received (2018-2024)
Avg $5,039/year across 7 years
Top 12% in CA for cardiovascular disease
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
50
Companies
646
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
$22,729 (64.4%)
Consulting
Expert advisory fees, typically reflecting recognized clinical expertise
$10,307 (29.2%)
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$2,239 (6.3%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$5,076
2023
$2,765
2022
$9,227
2021
$4,764
2020
$4,622
2019
$7,065
2018
$1,756
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
Abbott Laboratories
$2,021
Medtronic, Inc.
$823
ABIOMED
$581
Koya Medical, Inc.
$449
Novartis Pharmaceuticals Corporation
$243
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)
$209
Kiniksa Pharmaceuticals International, plc
$142
Boehringer Ingelheim Pharmaceuticals, Inc.
$120
Merck Sharp & Dohme LLC
$110
Amgen Inc.
$71
HEARTFLOW, INC.
$65
Boston Scientific Corporation
$54
Novo Nordisk Inc
$53
Kestra Medical Technology Services, Inc.
$45
Tactile Systems Technology Inc
$27
PFIZER INC.
$25
Bayer Healthcare Pharmaceuticals Inc.
$22
Terumo Medical Corporation
$17
Top 3 companies account for 67.5% of 2024 payments
All-time payments by company (2018-2024) ›
Abbott Laboratories
$18,383
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)
$3,245
Medtronic, Inc.
$1,820
ABIOMED
$1,644
BOSTON SCIENTIFIC CORPORATION
$1,545
Novartis Pharmaceuticals Corporation
$1,369
Janssen Pharmaceuticals, Inc
$1,279
Boston Scientific Corporation
$1,050
Amgen Inc.
$539
Koya Medical, Inc.
$449
Medtronic Vascular, Inc.
$325
AstraZeneca Pharmaceuticals LP
$272
Amarin Pharma Inc.
$247
SANOFI-AVENTIS U.S. LLC
$226
Boehringer Ingelheim Pharmaceuticals, Inc.
$216
Merck Sharp & Dohme LLC
$213
PFIZER INC.
$202
CathWorks, Inc.
$190
Kiniksa Pharmaceuticals, Ltd.
$165
Kiniksa Pharmaceuticals International, plc
$142
Merck Sharp & Dohme Corporation
$132
E.R. Squibb & Sons, L.L.C.
$131
Edwards Lifesciences Corporation
$129
Tactile Systems Technology Inc
$128
GE HEALTHCARE
$125
HeartFlow, Inc.
$115
Esperion Therapeutics, Inc.
$100
Philips Electronics North America Corporation
$80
Bardy Diagnostics, Inc.
$80
Novo Nordisk Inc
$78
Gilead Sciences, Inc.
$75
HEARTFLOW, INC.
$65
Regeneron Healthcare Solutions, Inc.
$61
ADVANCED RESPIRATORY, INC
$49
Bayer Healthcare Pharmaceuticals Inc.
$49
Kestra Medical Technology Services, Inc.
$45
Cardiovascular Systems Inc.
$31
Stryker Corporation
$30
SCPHARMACEUTICALS INC.
$27
Janssen Scientific Affairs, LLC
$27
Impulse Dynamics (USA) Inc.
$24
Daiichi Sankyo Inc.
$23
Biom'Up France SAS
$23
Bard Peripheral Vascular, Inc.
$21
Bayer HealthCare Pharmaceuticals Inc.
$21
Teleflex LLC
$18
Astellas Pharma US Inc
$18
Lexicon Pharmaceuticals, Inc.
$17
Terumo Medical Corporation
$17
ARALEZ PHARMACEUTICALS US INC.
$13
Top 3 companies account for 66.5% of all-time payments
Associated products mentioned in payments ›
(6342) Intrasight Integrated · (6571) Eagle Eye · (9267) AngioSculpt CV RX · 3F · ACCENT · ASSURITY · AVEIR · AZUR CX DETACHABLE · Accent Pacemaker · Allure CRT Pacemaker · Allure Quadra RF CRT Pacemaker · Arcalyst · Assure WCD · Assurity Pacemaker · Azure · BRILINTA · CAMZYOS · CONFIRM RX · COREVALVE EVOLUT R · CardioMEMS HF System · Carnation Ambulatory Monitor · Claria MRI · Confirm Rx · Connectivity and Remote care · CoreValve Evolut · Corlanor · Coronary Orbital Atherectomy System · Dayspring · Diamondback Peripheral · ELIQUIS · ELUVIA · EMBLEM · ENTRESTO · EVKEEZA · Edwards SAPIEN 3 Ultra Transcatheter Heart Valve · Ellipse ICD · FARXIGA · FFRangio · FFRangio System · FFRct · FLEXITOUCH · FORTIFY ASSURA · FUROSCIX · Flexitouch Plus · Fortify Assura · GALLANT · GENERAL ATHERECTOMY · GENERAL ATHERECTOMY · GENERAL STRUCTURAL HEART · General - Therapies · HemoBlast Bellows · INJECTAFER · INVOKANA · Impella · Inpefa · JARDIANCE · JOT DX · Kerendia · LEQVIO · LEXISCAN · LINQ II · LifeVest · MICRA · MITRACLIP · MULTAQ · MYCARELINK · Merlin Connectivity and Remote · NEXLETOL · NRG RF Transseptal Kit · OPTIMIZER · Ozempic · PRALUENT ALIROCUMAB INJECTION · Protecta · Quadra Allure MP RF CRT Pacemkr · Quadra Assura CRT Defibrillator · RESONATE · REVEAL LINQ · Repatha · Reveal LINQ · Rotarex · Rybelsus · TREVO · Tendril Pacing Lead · The Vest System Model 105 Home Care · VASCBAND · VENASEAL · VERQUVO · VYNDAQEL · Vascepa · VenaSeal · VersaCross Access Solution · WATCHMAN · WATCHMAN Access System · Wegovy · XARELTO · ZONTIVITY
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 (64%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
Geographic Context
Cardiologists within 10 mi
458
Per 100K population
4.7
County median income
$87,760
Nearest hospital
NORTHRIDGE HOSPITAL MEDICAL CENTER
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 reflects how much public data is available about a provider. How we calculate this →
Summary
Dr. Kalioundji is a clinical cardiology specialist, with above-average Medicare volume (top 0% in CA), with low-engagement industry engagement in the top 12% of CA peers, with 17 years of NPI registration.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
Is Dr. Kalioundji experienced with remote patient monitoring management, 20 min/month?
Based on Medicare claims data, Dr. Kalioundji performed 6,167 remote patient monitoring management, 20 min/month 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. Kalioundji receive payments from pharmaceutical companies?
Yes. Dr. Kalioundji received a total of $35,274 from 50 companies across 646 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. Kalioundji's costs compare to other cardiologists in Northridge?
Dr. Kalioundji's average Medicare payment per service is $111. 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. Kalioundji) 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. Data Coverage reflects 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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