Medicare Enrolled
Dr. Dennis Son, M.D.
Radiation Oncology · Culver City, 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. Son 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. Son?
Request a correction or review of any data shown here. Provider portal →
What this data tells you about Dr. Son
Dr. Dennis Son is a radiation oncology specialist in Culver City, CA, with 18 years of NPI registration. Based on federal Medicare data, Dr. Son performed 13,248 Medicare services across 3,963 unique beneficiaries.
Between the years covered by Open Payments, Dr. Son received a total of $1,097 from 11 pharmaceutical and/or device companies across 31 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. Son 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.
✓ 18 years in practice
▲ Top 14% volume in CA
$1,097 industry payments
Medicare Practice Summary
Medicare Utilization ↗13,248
Medicare services
Top 14% in CA for radiation oncology
3,963
Unique beneficiaries
$12
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~736 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. |
6,335 | $0 | $0 |
| 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. |
2,253 | $7 | $40 |
| MRI contrast dye injection (gadoterate) Administration of gadoterate meglumine, a contrast agent, in a 0.1 ml dose. |
2,250 | $0 | $1 |
| Complete ultrasound of abdomen A diagnostic imaging test that uses sound waves to create detailed pictures of the organs and structures within the abdomen. |
171 | $93 | $271 |
| Bone density scan (DEXA) A test that uses low-dose X-rays to measure bone mineral density in the hip, pelvis, and spine. It helps assess bone strength and risk of fractures. |
160 | $45 | $293 |
| 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. |
124 | $37 | $279 |
| 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. |
123 | $25 | $95 |
| 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. |
118 | $72 | $372 |
| Ultrasound of head and neck soft tissue This procedure uses sound waves to create images of the soft tissues in the head and neck area. It allows for the visualization of structures beneath the skin without using radiation. |
99 | $95 | $236 |
| Abdominal X-ray, 1 view An X-ray image of the abdomen taken from a single angle to visualize internal structures. |
95 | $7 | $51 |
| 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. |
78 | $68 | $347 |
| 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. |
74 | $68 | $353 |
| Knee X-ray, 4 or more views An imaging test using X-rays to create multiple pictures of the knee joint from different angles. |
70 | $9 | $36 |
| 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. |
59 | $103 | $604 |
| 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. |
56 | $7 | $33 |
| 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 | $6 | $38 |
| Complete ultrasound of retroperitoneum An ultrasound examination of the structures located behind the abdominal cavity. |
46 | $95 | $257 |
| 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. |
40 | $6 | $55 |
| 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. |
38 | $38 | $281 |
| 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. |
35 | $6 | $53 |
| Swallowing function imaging Imaging used to evaluate how well a person can swallow. This procedure visualizes the swallowing process to assess function. |
35 | $20 | $88 |
| 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. |
32 | $27 | $109 |
| 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. |
32 | $12 | $57 |
| 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. |
32 | $167 | $367 |
| 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. |
30 | $202 | $1,104 |
| Chest fluid aspiration with imaging guidance This procedure involves removing fluid from the chest cavity using imaging technology to guide the needle placement. |
29 | $92 | $724 |
| 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. |
29 | $15 | $71 |
| Ultrasound scan of chest An imaging test that uses sound waves to create pictures of the structures inside the chest. |
28 | $22 | $95 |
| 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. |
27 | $24 | $95 |
| 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. |
27 | $157 | $791 |
| 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. |
25 | $308 | $1,291 |
| Limited retroperitoneal ultrasound A focused ultrasound exam of the area behind the abdominal cavity to evaluate specific structures. |
25 | $46 | $209 |
| 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. |
24 | $30 | $229 |
| 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. |
24 | $7 | $53 |
| 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. |
23 | $130 | $1,078 |
| 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. |
22 | $8 | $44 |
| 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. |
22 | $94 | $245 |
| Complete pelvic ultrasound An imaging test using sound waves to create pictures of the organs and structures within the pelvis. |
22 | $82 | $243 |
| 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 | $28 | $118 |
| 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. |
21 | $6 | $58 |
| 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. |
20 | $90 | $485 |
| Elbow X-ray, minimum 3 views An X-ray imaging test of the elbow joint that captures at least three different angles to visualize the bones and surrounding structures. |
20 | $6 | $69 |
| 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. |
20 | $85 | $275 |
| Radiologist review of CT-guided needle placement A radiologist reviews the CT imaging used to guide the placement of a needle. |
20 | $57 | $278 |
| 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. |
19 | $40 | $259 |
| 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. |
19 | $78 | $208 |
| 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. |
18 | $140 | $1,195 |
| 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. |
17 | $90 | $390 |
| Nuclear medicine liver and bile duct scan A nuclear medicine imaging test to evaluate the liver and bile duct system. |
17 | $30 | $115 |
| New patient office visit (30-44 min) An initial office visit for a new patient lasting between 30 and 44 minutes. This code is used when the total time spent on the date of the encounter falls within this range. |
17 | $62 | $211 |
| 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. |
16 | $41 | $125 |
| Limited ultrasound of pelvis A focused ultrasound exam of the pelvic area to evaluate specific structures. This procedure provides images of the pelvis to assist in medical assessment. |
16 | $37 | $164 |
| 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. |
15 | $207 | $1,034 |
| Lumbar puncture with imaging guidance A procedure to remove spinal fluid from the lower back for diagnostic testing, performed using imaging guidance. |
15 | $69 | $294 |
| 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. |
15 | $41 | $163 |
| 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. |
15 | $28 | $93 |
| CT scan of chest with contrast A computed tomography scan of the chest using a contrast dye to enhance the visibility of internal structures. |
14 | $90 | $720 |
| CT scan of middle spine, without contrast A CT scan of the middle spine performed without the use of contrast dye. This imaging test uses X-rays to create detailed pictures of the vertebrae and surrounding structures. |
14 | $39 | $327 |
| MRI of abdomen without contrast An MRI scan of the abdomen that uses magnetic fields and radio waves to create detailed images of internal organs and tissues without the use of contrast dye. |
14 | $57 | $376 |
| 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. |
14 | $37 | $109 |
| 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. |
13 | $70 | $442 |
| 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. |
13 | $21 | $98 |
| X-ray of forearm, 2 views An X-ray imaging test of the forearm using two different angles to visualize the bones and surrounding structures. |
13 | $6 | $62 |
| Small intestine X-ray with single contrast An X-ray imaging test of the small intestine using a single contrast agent to visualize the digestive tract. |
13 | $33 | $77 |
| 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. |
12 | $55 | $379 |
| 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 | $336 |
| 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. |
12 | $26 | $96 |
| X-ray of foot, 2 views An X-ray imaging test of the foot using two different angles to create pictures of the bones and joints. |
12 | $6 | $39 |
| 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. |
12 | $65 | $260 |
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.
0.2% high complexity
75.5% medium
24.3% routine
Industry Payment Transparency
Open Payments through 2023 ↗$1,097
Total received (2018-2023)
Avg $183/year across 6 years
Top 24% in CA for radiation oncology
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
11
Companies
31
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
$797 (72.6%)
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$300 (27.4%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2023
$40
2022
$274
2021
$39
2020
$235
2019
$49
2018
$459
Payments by company (2023)
Consulting
Speaking
Meals & Travel
Research
Abbott Laboratories
$40
Top 3 companies account for 100.0% of 2023 payments
All-time payments by company (2018-2023) ›
Abbott Laboratories
$408
Bard Access Systems, Inc.
$300
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)
$119
Boston Scientific Corporation
$66
Cardiovascular Systems Inc.
$63
Ethicon US, LLC
$39
Medtronic, Inc.
$31
Amarin Pharma Inc.
$24
Medtronic Vascular, Inc.
$17
W. L. Gore & Associates, Inc.
$15
Avinger Inc.
$14
Top 3 companies account for 75.4% of all-time payments
Associated products mentioned in payments ›
CARDIOMEMS · CERTUS 140 MICROWAVE ABLATION SYSTEM · CHAMELEON · CardioMEMS HF System · GENERAL ATHERECTOMY · GENERAL - VASCULAR INTERVENTION · GORE EXCLUDER AAA Endoprosthesis · HI-TORQUE COMMAND · IN.PACT AV · JETSTREAM · LifeVest · MERLIN@HOME · Merlin Connectivity and Remote · PANTHERIS · PERCLOSE PROGLIDE · POWERGLIDE · Peripheral Orbital Atherectomy System · Quadra Assura CRT Defibrillator · Reveal LINQ · Vascepa
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 (73%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
Geographic Context
Radiation oncologists within 10 mi
1,026
Per 100K population
10.4
County median income
$87,760
Nearest hospital
KAISER FOUNDATION HOSPITAL - WEST LA
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 2023 |
| 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. Son is a mixed practice specialist, with above-average Medicare volume (top 14% in CA), with low-engagement industry engagement, with 18 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. Son experienced with contrast dye for imaging (iodine-based)?
Based on Medicare claims data, Dr. Son performed 6,335 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. Son receive payments from pharmaceutical companies?
Yes. Dr. Son received a total of $1,097 from 11 companies across 31 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. Son's costs compare to other radiation oncologists in Culver City?
Dr. Son's average Medicare payment per service is $12. 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. Son) 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 Culver City
Browse radiation oncologists in Culver City 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
Abbott Laboratories Payments to Doctors
See all physicians who received payments from Abbott Laboratories.
By company
Bard Access Systems, Inc. Payments to Doctors
See all physicians who received payments from Bard Access Systems, Inc.
By company
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) Payments to Doctors
See all physicians who received payments from ZOLL Services LLC (A/K/A ZOLL LifeCor Corp).
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