Medicare Enrolled
Dr. Bruce Zwiebel, MD
Radiation Oncology · El Segundo, CA
Practice pattern: Mixed Practice
— Diverse clinical practice across multiple procedure types
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. Zwiebel 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. Zwiebel
Dr. Bruce Zwiebel is a radiation oncology specialist in El Segundo, CA, with 20 years of NPI registration. Based on federal Medicare data, Dr. Zwiebel performed 3,035 Medicare services across 512 unique beneficiaries.
Between the years covered by Open Payments, Dr. Zwiebel received a total of $43,790 from 29 pharmaceutical and/or device companies across 172 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in radiation oncology. 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. Zwiebel 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 44% volume in CA
$43,790 industry payments
Medicare Practice Summary
Medicare Utilization ↗3,035
Medicare services
Top 44% in CA for radiation oncology
512
Unique beneficiaries
$10
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~152 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 |
|---|---|---|---|
| Contrast dye for imaging (iodine-based) A contrast agent containing 300-399 mg/ml of iodine used to enhance imaging studies. It is administered per milliliter to improve the visibility of internal structures. |
2,510 | $0 | $1 |
| Limited ultrasound of joint or extremity A focused ultrasound exam of a specific joint or other structure in the arm or leg, excluding blood vessels. |
69 | $26 | $364 |
| 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. |
58 | $25 | $84 |
| Complete ultrasound of retroperitoneum An ultrasound examination of the structures located behind the abdominal cavity. |
55 | $74 | $318 |
| 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. |
54 | $12 | $211 |
| 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. |
38 | $10 | $168 |
| 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. |
35 | $126 | $488 |
| Ultrasound of transplanted kidney An ultrasound scan of a transplanted kidney to visualize its structure and blood flow. This imaging test helps assess the health and function of the transplanted organ. |
32 | $28 | $484 |
| Fluoroscopic guidance for central vein access device Use of live X-ray imaging to guide the placement or removal of a central vein access device. |
27 | $14 | $315 |
| Limited retroperitoneal ultrasound A focused ultrasound exam of the area behind the abdominal cavity to evaluate specific structures. |
26 | $22 | $341 |
| Insertion of tunneled central venous catheter for infusion, age 5+ A surgical procedure to place a long-term catheter into a large vein for delivering medications or fluids. The catheter is tunneled under the skin to reduce infection risk and provide stable access for patients aged 5 and older. |
21 | $202 | $4,992 |
| CT scan of chest blood vessels with contrast A CT scan that uses contrast dye to create detailed images of the blood vessels in the chest. |
19 | $66 | $1,316 |
| Radiologist review of additional artery image A radiologist reviews an additional image of an artery. This step involves professional interpretation of the imaging data. |
17 | $37 | $457 |
| 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. |
14 | $170 | $505 |
| Removal of tunneled central venous tube This procedure involves the removal of a catheter that has been surgically placed under the skin and threaded into a large vein. |
13 | $105 | $2,537 |
| CT scan of abdominal and pelvic blood vessels with contrast A computed tomography scan that uses contrast dye to visualize the blood vessels in the abdomen and pelvis. |
12 | $302 | $2,730 |
| 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. |
12 | $10 | $237 |
| 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. |
12 | $77 | $374 |
| Limited abdominal ultrasound A focused ultrasound examination of the abdomen to evaluate specific organs or areas. This procedure uses sound waves to create images of internal structures. |
11 | $68 | $600 |
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.
1.7% high complexity
93.2% medium
5.0% routine
Industry Payment Transparency
Open Payments through 2024 ↗$43,790
Total received (2018-2024)
Avg $6,256/year across 7 years
Top 3% in CA for radiation oncology
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
29
Companies
172
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
$37,133 (84.8%)
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$4,218 (9.6%)
Consulting
Expert advisory fees, typically reflecting recognized clinical expertise
$2,439 (5.6%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$945
2023
$1,075
2022
$540
2021
$1,113
2020
$3,205
2019
$5,728
2018
$31,184
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
Cook Medical LLC
$203
TriSalus Life Sciences, Inc.
$186
Boston Scientific Corporation
$164
Inari Medical, Inc.
$159
Balt USA, LLC
$142
Okami Medical, Inc.
$48
Bard Peripheral Vascular, Inc.
$22
Penumbra, Inc.
$21
Top 3 companies account for 58.5% of 2024 payments
All-time payments by company (2018-2024) ›
Medtronic Vascular, Inc.
$30,319
Boston Scientific Corporation
$4,740
AngioDynamics, Inc.
$3,080
Inari Medical, Inc.
$995
Cook Medical LLC
$676
W. L. Gore & Associates, Inc.
$575
Penumbra, Inc.
$436
Bard Peripheral Vascular, Inc.
$417
BARD PERIPHERAL VASCULAR, INC.
$369
TriSalus Life Sciences, Inc.
$334
GE HEALTHCARE
$208
Philips Electronics North America Corporation
$207
EKOS Corporation
$191
Stryker Corporation
$179
BOSTON SCIENTIFIC CORPORATION
$178
Terumo Medical Corporation
$152
Medtronic, Inc.
$147
Balt USA, LLC
$142
ARGON MEDICAL DEVICES, INC.
$89
Surefire Medical, Inc.
$71
Cardinal Health 200, LLC
$55
Okami Medical, Inc.
$48
Endocare, Inc.
$44
CARDIVA MEDICAL, INC.
$36
Eisai Inc.
$24
Covidien LP
$21
Bayer HealthCare Pharmaceuticals Inc.
$21
Biocompatibles, Inc.
$21
Sirtex Medical Inc
$14
Top 3 companies account for 87.1% of all-time payments
Associated products mentioned in payments ›
ALPHAVAC · AMPLATZ · AZUR · Abre · AngioJet Ultra 5000A · AngioSeal · AngioVac · C3 Delivery System · COOK · COVERA · Concerto · Cook Medical Angioplasty · DIREXION · EKOSONIC · ELUVIA · EVERFLEX · EXCLUDER AAA Endoprosthesis · Emprint · Endurant · FLOWTRIEVER CATHETER · FlowTriever · GENERAL EMBOLICS · GENERAL EMBOLICS · GENERAL VASCULAR INTERVENTION · GENERAL - NON-VASCULAR INTERVENTION · GENERAL ATHERECTOMY · GENERAL EMBOLICS · General - Embolics · GlideWire · INTERLOCK · IQon Spectral CT · IVCF · IVS - AVA · Indigo System · LOBO · LUTONIX · Lenvima · Lunderquist · MVP · MynxGrip Vascular Closure Device · NanoKnife · Nexavar · POD · PROGREAT · Penumbra Ruby Coil · Precision Infusion System · Prestige Coil System · RUBY Coil · S · SIR-Spheres Microspheres · SMART PORT CT · SOLERO · Surefire Infusion Systems · THERASPHERE · TIPS · TORNADO · TRINAV INFUSION SYSTEM · TheraSphere Y90 Glass Microspheres 10 GBq · Tornado · VIABAHN Endoprosthesis with Heparin Bioactive Surface · Vascular Closure Device · Venovo · Zilver Vena
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 (85%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians. Total industry engagement is in the top 3% for radiation oncology in CA.
Geographic Context
Radiation oncologists within 10 mi
1,012
Per 100K population
10.3
County median income
$87,760
Nearest hospital
CENTINELA HOSPITAL MEDICAL CENTER
3.7 mi
3.7 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. Zwiebel is a mixed practice specialist, with moderate Medicare volume, with low-engagement industry engagement in the top 3% of CA peers, 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. Zwiebel experienced with contrast dye for imaging (iodine-based)?
Based on Medicare claims data, Dr. Zwiebel performed 2,510 contrast dye for imaging (iodine-based) 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. Zwiebel receive payments from pharmaceutical companies?
Yes. Dr. Zwiebel received a total of $43,790 from 29 companies across 172 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. Zwiebel's costs compare to other radiation oncologists in El Segundo?
Dr. Zwiebel's average Medicare payment per service is $10. 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. Zwiebel) 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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