Medicare Enrolled
Dr. Scott Zager, MD
Cardiovascular Disease · Oxnard, 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. Zager 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. Zager
Dr. Scott Zager is a cardiovascular disease specialist in Oxnard, CA, with 20 years of NPI registration. Based on federal Medicare data, Dr. Zager performed 10,383 Medicare services across 4,575 unique beneficiaries.
Between the years covered by Open Payments, Dr. Zager received a total of $15,939 from 45 pharmaceutical and/or device companies across 809 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. Zager 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.
✓ 20 years in practice
▲ Top 6% volume in CA
$15,939 industry payments
Medicare Practice Summary
Medicare Utilization ↗10,383
Medicare services
Top 6% in CA for cardiovascular disease
4,575
Unique beneficiaries
$82
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~519 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 |
|---|---|---|---|
| Chronic care management, additional 20 min/month This service covers an extra 20 minutes of clinical staff time directed by a healthcare professional for managing two or more chronic conditions each calendar month. |
1,390 | $40 | $109 |
| 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. |
1,283 | $144 | $300 |
| 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. |
1,258 | $34 | $94 |
| 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. |
1,154 | $12 | $66 |
| Remote patient monitoring management, 20 min/month Management based on results from remote vital sign monitoring for the first 20 minutes per calendar month. |
903 | $43 | $125 |
| Chronic care management, first 20 min/month This service covers the first 20 minutes of clinical staff time directed by a healthcare professional each calendar month to manage chronic conditions. |
777 | $54 | $142 |
| 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. |
551 | $47 | $119 |
| 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. |
477 | $102 | $175 |
| Regadenoson injection (Lexiscan) for heart stress test An injection of regadenoson, a medication used to stress the heart during diagnostic testing. |
324 | $44 | $88 |
| Echocardiogram, transthoracic An ultrasound of the heart that uses color to show blood flow, rate, direction, and valve function. |
320 | $167 | $925 |
| Remote physiologic monitoring setup and education Initial setup of remote monitoring equipment and patient education on its use. |
318 | $18 | $65 |
| 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. |
181 | $100 | $388 |
| Rubidium rb-82, diagnostic, per study dose, up to 60 millicuries | 150 | $417 | $1,000 |
| 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. |
142 | $24 | $90 |
| Remote monitoring of implantable heart device, up to 30 days Remote evaluation of an implanted heart or blood vessel monitoring system over a period of up to 30 days. |
116 | $21 | $80 |
| 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. |
96 | $205 | $998 |
| 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. |
91 | $167 | $570 |
| Office visit for established patient An office visit for an existing patient that may not require the healthcare professional to be present. |
91 | $17 | $45 |
| 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. |
83 | $62 | $373 |
| Echocardiogram, transthoracic An ultrasound test that uses sound waves to create images of the heart's blood flow, valves, and chambers. |
80 | $42 | $220 |
| Echocardiogram with color Doppler An ultrasound of the heart that uses color imaging to visualize blood flow, measure flow rate, and assess valve function. |
80 | $20 | $230 |
| New patient office visit, complex (60-74 min) | 56 | $180 | $380 |
| Continuous ECG monitoring, up to 30 days Continuous heart rhythm monitoring for up to 30 days, including professional review and reporting of the results. |
49 | $21 | $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. |
49 | $799 | $1,500 |
| 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. |
47 | $140 | $388 |
| 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. |
44 | $59 | $400 |
| 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. |
43 | $1,747 | $3,500 |
| 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. |
43 | $124 | $400 |
| Pacemaker programming, dual lead system Adjustment and configuration of a dual-lead pacemaker device to ensure proper operation and settings. |
43 | $72 | $140 |
| 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. |
35 | $30 | $120 |
| 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. |
32 | $1,364 | $4,000 |
| Continuous external EKG monitoring, 48 hours to 7 days This procedure involves recording the heart's electrical activity continuously using an external device for a period exceeding 48 hours but not more than 7 days. |
22 | $11 | $35 |
| Continuous EKG monitoring review, 48-7 days Review and interpretation of continuous external EKG recordings lasting more than 48 hours up to 7 days. |
22 | $19 | $60 |
| Wearable defibrillator system evaluation Assessment of a wearable cardioverter defibrillator to ensure proper function and fit. |
19 | $47 | $200 |
| External shock to heart to regulate heart beat A procedure that delivers an electric shock to the heart from outside the body to restore a normal heart rhythm. |
14 | $92 | $410 |
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.
6.2% high complexity
7.2% medium
86.6% routine
Industry Payment Transparency
Open Payments through 2024 ↗$15,939
Total received (2018-2024)
Avg $2,277/year across 7 years
Top 21% in CA for cardiovascular disease
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
45
Companies
809
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
$15,761 (98.9%)
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$178 (1.1%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$2,190
2023
$1,802
2022
$2,722
2021
$2,961
2020
$1,847
2019
$2,141
2018
$2,277
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
E.R. Squibb & Sons, L.L.C.
$228
Abbott Laboratories
$195
Kiniksa Pharmaceuticals International, plc
$178
PFIZER INC.
$171
Merck Sharp & Dohme LLC
$170
Actelion Pharmaceuticals US, Inc.
$154
ABIOMED
$140
Janssen Pharmaceuticals, Inc
$138
Medtronic, Inc.
$126
Amgen Inc.
$100
Novartis Pharmaceuticals Corporation
$97
Lexicon Pharmaceuticals, Inc.
$93
Edwards Lifesciences Corporation
$84
AstraZeneca Pharmaceuticals LP
$79
Novo Nordisk Inc
$67
Alnylam Pharmaceuticals Inc.
$38
Boston Scientific Corporation
$33
SCPHARMACEUTICALS INC.
$24
Regeneron Healthcare Solutions, Inc.
$24
iRhythm Technologies, Inc.
$19
Boehringer Ingelheim Pharmaceuticals, Inc.
$16
Esperion Therapeutics, Inc.
$13
Top 3 companies account for 27.5% of 2024 payments
All-time payments by company (2018-2024) ›
Janssen Pharmaceuticals, Inc
$1,417
Novartis Pharmaceuticals Corporation
$1,355
Amgen Inc.
$1,316
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)
$1,089
Amarin Pharma Inc.
$1,082
AstraZeneca Pharmaceuticals LP
$1,035
Actelion Pharmaceuticals US, Inc.
$1,032
E.R. Squibb & Sons, L.L.C.
$895
Abbott Laboratories
$879
PFIZER INC.
$586
ABIOMED
$506
Boehringer Ingelheim Pharmaceuticals, Inc.
$484
Merck Sharp & Dohme LLC
$430
SANOFI-AVENTIS U.S. LLC
$418
Gilead Sciences, Inc.
$343
Boston Scientific Corporation
$342
Kiniksa Pharmaceuticals, Ltd.
$213
Medtronic Vascular, Inc.
$212
Medtronic, Inc.
$198
Esperion Therapeutics, Inc.
$189
Kiniksa Pharmaceuticals International, plc
$178
Merck Sharp & Dohme Corporation
$177
Impulse Dynamics (USA) Inc.
$166
Allergan Inc.
$166
Kowa Pharmaceuticals America, Inc.
$121
Alnylam Pharmaceuticals Inc.
$120
Edwards Lifesciences Corporation
$112
AtriCure, Inc.
$111
Novo Nordisk Inc
$110
Lundbeck LLC
$93
Lexicon Pharmaceuticals, Inc.
$93
Regeneron Healthcare Solutions, Inc.
$82
iRhythm Technologies, Inc.
$69
Bardy Diagnostics, Inc.
$62
Bayer HealthCare Pharmaceuticals Inc.
$38
Otsuka America Pharmaceutical, Inc.
$37
Janssen Scientific Affairs, LLC
$25
SCPHARMACEUTICALS INC.
$24
BIOTRONIK INC.
$23
Kestra Medical Technology Services, Inc.
$22
AngioDynamics, Inc.
$20
Relypsa, Inc.
$19
ARBOR PHARMACEUTICALS, INC.
$17
BOSTON SCIENTIFIC CORPORATION
$16
HeartFlow, Inc.
$16
Top 3 companies account for 25.6% of all-time payments
Associated products mentioned in payments ›
ACCOLADE SR · AMPLATZER AMULET · ANDEXXA · ATRICURE ATRICLIP LAA EXCLUSION · AVEIR · Adempas · Arcalyst · Assure WCD · Azure · BRILINTA · BYDUREON · BYSTOLIC · BYVALSON · CAMZYOS · CHANTIX · COREVALVE EVOLUT R · Carnation Ambulatory Monitor · Circulatory Support · Confirm Rx · CoreValve Evolut · Corlanor · Dragonfly OCT · ELIQUIS · ENSITE · ENTRESTO · EVKEEZA · Edarbi · Edwards SAPIEN 3 Ultra Transcatheter Heart Valve · FARXIGA · FFRct · FUROSCIX · HeartMate 3 Left Ventricular Dev · Impella · JARDIANCE · LEQVIO · LifeVest · Livalo · MULTAQ · Micra · Mitra Clip system · MitraClip System · NEXLETOL · NORTHERA · ONPATTRO · OPSUMIT · OPSUMIT MACITENTAN · OPTIMIZER · Ozempic · PRADAXA · PRALUENT · PRALUENT ALIROCUMAB INJECTION · Perclose ProGlide suture mediated closure system · Repatha · Reveal LINQ · Reveal XT · Rybelsus · SAMSCA · SAPIEN 3 Ultra RESILIA · UPTRAVI · VERQUVO · VYNDAQEL · Vascepa · Veltassa · WAINUA · WATCHMAN · WATCHMAN Access System · XARELTO · ZIO XT Patch
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 (99%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
Geographic Context
Cardiologists within 10 mi
45
Per 100K population
5.4
County median income
$107,327
Nearest hospital
ST JOHNS REGIONAL 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. Zager is a clinical cardiology specialist, with above-average Medicare volume (top 6% in CA), with low-engagement industry engagement, with 20 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. Zager experienced with chronic care management, additional 20 min/month?
Based on Medicare claims data, Dr. Zager performed 1,390 chronic care management, additional 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. Zager receive payments from pharmaceutical companies?
Yes. Dr. Zager received a total of $15,939 from 45 companies across 809 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. Zager's costs compare to other cardiologists in Oxnard?
Dr. Zager's average Medicare payment per service is $82. 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. Zager) 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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