Medicare Enrolled
Dr. Simon Gabriel, M.D.
Radiation Oncology · Los Angeles, 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. Gabriel 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 →
Are you Dr. Gabriel?
Request a correction or review of any data shown here. Provider portal →
What this data tells you about Dr. Gabriel
Dr. Simon Gabriel is a radiation oncology specialist in Los Angeles, CA, with 17 years of NPI registration. Based on federal Medicare data, Dr. Gabriel performed 50,012 Medicare services across 3,825 unique beneficiaries.
Between the years covered by Open Payments, Dr. Gabriel received a total of $1,329 from 9 pharmaceutical and/or device companies across 19 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. Gabriel 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 2% volume in CA
$1,329 industry payments
Medicare Practice Summary
Medicare Utilization ↗50,012
Medicare services
Top 2% in CA for radiation oncology
3,825
Unique beneficiaries
$26
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~2,942 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. |
25,035 | $0 | $1 |
| MRI contrast dye injection (gadobutrol) | 20,831 | $0 | $4 |
| Piflufolastat F-18 diagnostic injection A diagnostic injection of the radioactive tracer piflufolastat F-18 used for imaging. The dose specified is 1 millicurie. |
765 | $484 | $647 |
| 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. |
486 | $25 | $116 |
| Fluorodeoxyglucose f-18 fdg, diagnostic, per study dose, up to 45 millicuries | 278 | $284 | $600 |
| Nuclear medicine scan from skull base to mid-thigh with CT A nuclear medicine imaging study covering the area from the base of the skull to the middle of the thighs, performed alongside a CT scan. |
199 | $1,486 | $8,802 |
| MRI of brain with and without contrast An MRI scan of the brain using contrast dye both before and after administration to provide detailed images of brain structures. |
183 | $286 | $2,430 |
| MRI scan of brain, without contrast A magnetic resonance imaging test of the brain that does not use contrast dye. This procedure creates detailed images of the brain's structure using magnetic fields and radio waves. |
168 | $164 | $1,746 |
| Whole body nuclear medicine scan with CT A combined imaging procedure using nuclear medicine and CT scans to visualize the entire body. |
128 | $1,480 | $8,783 |
| MRI of lower spine, without contrast A magnetic resonance imaging scan of the lower spinal canal that does not use contrast dye to create detailed images of the spine. |
114 | $171 | $1,624 |
| CT scan of head/brain, without contrast A CT scan uses X-rays to create detailed images of the head or brain without the use of contrast dye. |
88 | $94 | $708 |
| CT scan of heart for calcium evaluation A CT scan of the heart used to evaluate calcium levels in the blood vessels. |
82 | $89 | $323 |
| CT scan of upper spine, without contrast A CT scan uses X-rays to create detailed images of the upper spine. This procedure is performed without the use of contrast dye. |
70 | $38 | $203 |
| MRI of upper spine without contrast An MRI scan of the upper spinal canal that does not use contrast dye. This imaging test uses magnetic fields and radio waves to create detailed pictures of the spine. |
67 | $144 | $1,644 |
| Swallowing function imaging Imaging used to evaluate how well a person can swallow. This procedure visualizes the swallowing process to assess function. |
61 | $21 | $101 |
| CT scan of heart with contrast A computed tomography scan that uses contrast dye to create detailed images of the heart's structure. |
57 | $208 | $1,327 |
| Abdominal X-ray, 1 view An X-ray image of the abdomen taken from a single angle to visualize internal structures. |
56 | $7 | $37 |
| MRI of neck blood vessels without contrast This procedure uses magnetic resonance imaging to create detailed pictures of the blood vessels in the neck without the use of contrast dye. |
52 | $204 | $1,693 |
| 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. |
50 | $210 | $1,736 |
| Pelvis X-ray, 1-2 views An X-ray imaging test of the pelvic area using one to two different angles to visualize the bones and joints. |
49 | $7 | $35 |
| 3D radiographic procedure with computerized image postprocessing A radiographic imaging procedure that creates three-dimensional images using computerized processing of the captured data. |
49 | $69 | $343 |
| Knee X-ray, 1-2 views An X-ray imaging test of the knee joint using one to two different angles to visualize the bones and surrounding structures. |
47 | $7 | $37 |
| CT scan of heart blood vessels and grafts with contrast A CT scan that uses contrast dye to create detailed images of the heart's blood vessels and any surgical grafts. |
47 | $253 | $1,608 |
| CT scan of chest, without contrast A computed tomography scan of the chest area that uses X-rays to create detailed images without the use of contrast dye. |
34 | $117 | $902 |
| MRI of heart with and without contrast A magnetic resonance imaging scan of the heart performed both before and after the administration of a contrast dye to enhance image detail. |
34 | $347 | $2,072 |
| Brain nuclear medicine study with metabolic evaluation A nuclear medicine imaging test that uses radioactive tracers to evaluate brain metabolism. This procedure helps assess how brain tissues are functioning at a metabolic level. |
33 | $1,465 | $8,438 |
| Shoulder X-ray, 2+ views An X-ray imaging test of the shoulder joint using at least two different angles to visualize the bones and surrounding structures. |
32 | $30 | $127 |
| 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. |
31 | $23 | $111 |
| MRI of heart blood flow An MRI scan that visualizes the flow of blood within the heart. |
30 | $44 | $272 |
| 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. |
27 | $104 | $496 |
| Foot X-ray, 3+ views An X-ray imaging test of the foot that captures at least three different views to evaluate the bones and joints. |
26 | $6 | $32 |
| 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. |
26 | $174 | $803 |
| CT scan of chest with contrast A computed tomography scan of the chest using a contrast dye to enhance the visibility of internal structures. |
25 | $107 | $1,129 |
| CT scan of abdomen and pelvis with contrast A CT scan that uses dye to create detailed images of the abdomen and pelvis. This imaging test helps doctors examine internal organs and structures in these areas. |
25 | $296 | $1,479 |
| MRI of chest blood vessels An MRI scan that uses magnetic fields and radio waves to create detailed images of the blood vessels in the chest. |
24 | $310 | $2,003 |
| 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. |
23 | $368 | $2,151 |
| MRI of eye socket, face, and/or neck with and without contrast This procedure uses magnetic resonance imaging to create detailed pictures of the bones in the eye socket, face, and neck. It is performed both before and after the administration of a contrast dye to enhance the images. |
22 | $325 | $2,437 |
| X-ray of lower and sacral spine, minimum of 4 views An X-ray imaging test of the lower back and sacrum using at least four different angles to visualize the bones and joints. |
22 | $45 | $197 |
| Ankle X-ray, minimum 3 views An X-ray imaging test of the ankle that captures at least three different angles to evaluate the bones and joints. |
22 | $6 | $34 |
| 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. |
22 | $65 | $304 |
| CT scan of face, without contrast A computed tomography scan that creates detailed images of the facial structures. This procedure is performed without the use of intravenous contrast dye. |
21 | $123 | $968 |
| MRI of head blood vessels without contrast An MRI scan that creates detailed images of the blood vessels in the head without using contrast dye. |
21 | $189 | $1,692 |
| Rib X-ray, minimum 3 views An X-ray imaging test of the ribs on one side of the body. The procedure includes a minimum of three different views to capture detailed images. |
21 | $10 | $51 |
| X-ray of lower and sacral spine, 2-3 views An X-ray imaging test that captures 2 to 3 views of the lower back and sacral spine to visualize the bones and joints in this area. |
21 | $29 | $124 |
| Ultrasound of abdominal aorta An imaging test that uses sound waves to create pictures of the abdominal aorta, the large blood vessel that carries blood from the heart to the lower body. |
20 | $120 | $407 |
| Double contrast esophagram An X-ray of the esophagus using two types of contrast material to create detailed images of the upper digestive tract. |
19 | $27 | $144 |
| CT scan of head, without contrast A CT scan uses X-rays to create detailed images of the brain and skull. This specific scan is performed without the use of contrast dye. |
18 | $117 | $994 |
| CT scan of neck blood vessels with contrast A computed tomography scan that uses dye to visualize the blood vessels in the neck. This imaging test helps examine the structure and flow within the neck's vascular system. |
18 | $207 | $1,800 |
| X-ray of hand, minimum of 3 views An X-ray imaging test of the hand that captures at least three different angles to visualize the bones and joints. |
18 | $6 | $34 |
| MRI of middle spinal canal, without contrast This procedure uses magnetic resonance imaging to create detailed pictures of the middle section of the spinal canal. It is performed without the use of contrast dye. |
17 | $134 | $1,647 |
| X-ray of upper arm, minimum of 2 views An X-ray imaging test of the upper arm that captures at least two different views to evaluate the bones and surrounding structures. |
17 | $6 | $34 |
| Wrist X-ray, minimum 3 views An imaging test using X-rays to capture at least three different angles of the wrist bones and joints. |
17 | $6 | $34 |
| Hip X-ray, 2-3 views An X-ray imaging test of the hip joint using two to three different angles to visualize the bones and surrounding structures. |
17 | $36 | $145 |
| X-ray of lower leg, 2 views An X-ray imaging test of the lower leg using two different angles to visualize the bones and surrounding structures. |
17 | $7 | $34 |
| CT scan of leg, without contrast A computed tomography scan of the leg performed without the use of contrast dye. This imaging test uses X-rays to create detailed cross-sectional images of the leg's internal structures. |
17 | $121 | $900 |
| Whole body bone and joint nuclear medicine scan A nuclear medicine imaging test that uses a radioactive tracer to create pictures of the entire skeleton and joints. This scan helps evaluate bone health and detect abnormalities throughout the body. |
17 | $32 | $160 |
| Complete ultrasound of abdomen A diagnostic imaging test that uses sound waves to create detailed pictures of the organs and structures within the abdomen. |
16 | $102 | $584 |
| Voiding cystourethrogram An imaging procedure that uses X-rays to visualize the bladder and urethra while urine is being passed. |
15 | $37 | $161 |
| Knee X-ray, 3 views An X-ray imaging test of the knee joint that captures three different angles to evaluate the bones and surrounding structures. |
15 | $28 | $156 |
| Radiologist review of urinary bladder image A radiologist examines and interprets images of the urinary bladder to assess its structure and function. |
15 | $13 | $59 |
| Lymphatic system nuclear medicine study A nuclear medicine imaging test used to evaluate the structure and function of the lymphatic system. |
15 | $45 | $223 |
| CT scan of lower spine, without contrast A computed tomography scan that creates detailed images of the lower spine using X-rays without the use of contrast dye. |
14 | $102 | $901 |
| CT scan of abdomen and pelvis, without contrast A computed tomography scan that creates detailed images of the abdominal and pelvic organs. The procedure is performed without the use of intravenous contrast dye. |
14 | $161 | $972 |
| Complete ultrasound of retroperitoneum An ultrasound examination of the structures located behind the abdominal cavity. |
14 | $91 | $570 |
| CT scan of neck soft tissue with contrast A computed tomography scan that uses contrast dye to create detailed images of the soft tissues in the neck. |
13 | $158 | $1,150 |
| CT scan of head blood vessels with contrast A CT scan that uses contrast dye to create detailed images of the blood vessels in the head. |
13 | $223 | $1,800 |
| CT scan of abdomen and pelvis with contrast A CT scan of the abdomen and pelvis using contrast dye before and after administration to visualize internal structures. |
13 | $331 | $1,734 |
| Transvaginal pelvic ultrasound An ultrasound exam using a probe inserted into the vagina to image the uterus, ovaries, fallopian tubes, cervix, and surrounding pelvic structures. |
13 | $112 | $317 |
| X-ray of upper spine, 4-5 views An X-ray imaging test of the upper spine using 4 to 5 different views to visualize the bones and structures in that area. |
12 | $46 | $208 |
| CT scan of pelvis, without contrast A CT scan that uses X-rays to create detailed images of the pelvic area without the use of contrast dye. |
12 | $44 | $206 |
| Elbow X-ray, 2 views An X-ray imaging test of the elbow joint using two different angles to visualize the bones and surrounding structures. |
12 | $7 | $31 |
| X-ray of thigh bone, minimum 2 views An X-ray imaging test of the thigh bone using at least two different angles to visualize the bone structure. |
12 | $8 | $39 |
| Abdominal X-ray, 2 views An X-ray imaging test of the abdomen using two different angles to visualize internal structures. |
12 | $10 | $48 |
| MRI of head blood vessels with and without contrast An MRI scan that uses contrast dye to create detailed images of the blood vessels in the head, performed both before and after the dye is administered. |
11 | $305 | $2,720 |
| MRI of neck blood vessels with and without contrast This procedure uses magnetic resonance imaging to create detailed pictures of the blood vessels in the neck. Images are taken both before and after the administration of a contrast dye to enhance visibility. |
11 | $335 | $2,719 |
| Chest X-ray, 1 view An X-ray image of the chest taken from a single angle. This imaging test is used to visualize the structures within the chest cavity. |
11 | $21 | $75 |
| X-ray of upper spine, 2-3 views An X-ray imaging test of the upper spine using two to three different angles to visualize the bones and structures. |
11 | $34 | $143 |
| X-ray of middle spine, 2 views An X-ray imaging test that produces two views of the middle section of the spine to visualize the bones and joints. |
11 | $22 | $118 |
| MRI of lower spine with and without contrast An MRI scan of the lower spinal canal performed both before and after the administration of contrast dye to enhance image detail. |
11 | $93 | $452 |
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.
Industry Payment Transparency
Open Payments through 2022 ↗$1,329
Total received (2018-2022)
Avg $332/year across 4 years
Top 22% in CA for radiation oncology
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
9
Companies
19
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
$1,329 (100.0%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2022
$15
2020
$77
2019
$1,192
2018
$46
Payments by company (2022)
Consulting
Speaking
Meals & Travel
Research
GE HealthCare
$15
Top 3 companies account for 100.0% of 2022 payments
All-time payments by company (2018-2022) ›
Siemens Medical Solutions USA, Inc.
$976
Edwards Lifesciences Corporation
$144
Philips Electronics North America Corporation
$74
GE HEALTHCARE
$31
CathWorks, Inc.
$29
Amgen Inc.
$24
Bayer HealthCare Pharmaceuticals Inc.
$22
AstraZeneca Pharmaceuticals LP
$15
GE HealthCare
$15
Top 3 companies account for 89.8% of all-time payments
Associated products mentioned in payments ›
BRILINTA · Edwards SAPIEN 3 Transcatheter Heart Valve · FFRangio System · IQon Spectral CT · MAGNETOM Vida 3T · SOMATOM Force · Xofigo
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 (100%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
Geographic Context
Radiation oncologists within 10 mi
993
Per 100K population
10.1
County median income
$87,760
Nearest hospital
RONALD REAGAN UCLA 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 2022 |
| 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. Gabriel is a mixed practice specialist, with above-average Medicare volume (top 2% in CA), with low-engagement industry engagement, 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. Gabriel experienced with contrast dye for imaging (iodine-based)?
Based on Medicare claims data, Dr. Gabriel performed 25,035 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. Gabriel receive payments from pharmaceutical companies?
Yes. Dr. Gabriel received a total of $1,329 from 9 companies across 19 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. Gabriel's costs compare to other radiation oncologists in Los Angeles?
Dr. Gabriel's average Medicare payment per service is $26. 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. Gabriel) 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 →
Explore related providers
Same specialty & city
Radiation Oncologists in Los Angeles
Browse radiation oncologists in Los Angeles ranked by procedure volume and transparency data.
Highest volume
Top Radiation Oncologists in CA
Radiation oncologists ranked by total Medicare services performed statewide.
Industry payments
Pharma Payments to Radiation Oncologists in CA
Which CA radiation oncologists receive the most from drug and device companies.
By company
Siemens Medical Solutions USA, Inc. Payments to Doctors
See all physicians who received payments from Siemens Medical Solutions USA, Inc.
By company
Edwards Lifesciences Corporation Payments to Doctors
See all physicians who received payments from Edwards Lifesciences Corporation.
By company
Philips Electronics North America Corporation Payments to Doctors
See all physicians who received payments from Philips Electronics North America Corporation.
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.
Provider corrections: Provider portal · Privacy questions: Privacy Policy · Terms: Terms of Use · Methodology: Methodology