Medicare Enrolled
Dr. Trevor Nelson, M.D.
Radiation Oncology · La Jolla, 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. Nelson 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. Nelson
Dr. Trevor Nelson is a radiation oncology specialist in La Jolla, CA, with 19 years of NPI registration. Based on federal Medicare data, Dr. Nelson performed 3,120 Medicare services across 1,793 unique beneficiaries.
Between the years covered by Open Payments, Dr. Nelson received a total of $5,643 from 20 pharmaceutical and/or device companies across 71 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. Nelson 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.
✓ 19 years in practice
▲ Top 43% volume in CA
$5,643 industry payments
Medicare Practice Summary
Medicare Utilization ↗3,120
Medicare services
Top 43% in CA for radiation oncology
1,793
Unique beneficiaries
$8
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~164 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. |
1,180 | $0 | $3 |
| 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. |
1,108 | $7 | $47 |
| 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. |
138 | $20 | $138 |
| 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. |
130 | $26 | $124 |
| Abdominal X-ray, 1 view An X-ray image of the abdomen taken from a single angle to visualize internal structures. |
118 | $7 | $47 |
| 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. |
35 | $7 | $46 |
| Swallowing function imaging Imaging used to evaluate how well a person can swallow. This procedure visualizes the swallowing process to assess function. |
34 | $21 | $138 |
| 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. |
34 | $66 | $372 |
| 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. |
31 | $24 | $205 |
| 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. |
30 | $6 | $50 |
| 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 | $23 | $186 |
| 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. |
24 | $23 | $196 |
| 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. |
22 | $7 | $44 |
| 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. |
22 | $29 | $216 |
| 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. |
20 | $32 | $245 |
| 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. |
18 | $7 | $48 |
| 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. |
18 | $29 | $143 |
| 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. |
18 | $27 | $141 |
| 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 | $32 | $262 |
| 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. |
17 | $10 | $176 |
| Ultrasound of leg arteries or grafts An ultrasound exam that uses sound waves to create images of the arteries in one leg or any grafts present in that leg. |
15 | $17 | $85 |
| Knee X-ray, 4 or more views An imaging test using X-rays to create multiple pictures of the knee joint from different angles. |
14 | $35 | $491 |
| 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. |
14 | $27 | $206 |
| Radiologist review of CT-guided needle placement A radiologist reviews the CT imaging used to guide the placement of a needle. |
13 | $50 | $375 |
| 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. |
12 | $6 | $45 |
| 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 | $23 | $152 |
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 2024 ↗$5,643
Total received (2018-2024)
Avg $806/year across 7 years
Top 11% in CA for radiation oncology
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
20
Companies
71
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
$5,643 (100.0%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$382
2023
$451
2022
$471
2021
$431
2020
$96
2019
$1,526
2018
$2,286
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
Medtronic, Inc.
$156
W. L. Gore & Associates, Inc.
$112
Ethicon US, LLC
$80
Reflow Medical Inc
$30
Sirtex Medical Inc
$4
Top 3 companies account for 91.2% of 2024 payments
All-time payments by company (2018-2024) ›
Penumbra, Inc.
$2,003
Cook Medical LLC
$663
Inari Medical, Inc.
$503
W. L. Gore & Associates, Inc.
$386
Boston Scientific Corporation
$322
Terumo Medical Corporation
$300
Medtronic, Inc.
$210
Stryker Corporation
$173
Viz.ai, Inc.
$151
Abbott Laboratories
$148
Ethicon US, LLC
$134
La Jolla Pharmaceutical Company
$125
Philips Electronics North America Corporation
$125
Intuitive Surgical, Inc.
$110
Biocompatibles, Inc.
$110
Duchesnay USA Incorporated
$102
Reflow Medical Inc
$30
ACADIA Pharmaceuticals Inc
$23
AngioDynamics, Inc.
$21
Sirtex Medical Inc
$4
Top 3 companies account for 56.2% of all-time payments
Associated products mentioned in payments ›
(4067) Tack Endo Sys BTK · ABRE · AZUR CX DETACHABLE · Abre · Absolute Pro vascular stent system · COOK MEDICAL IAA · COOK MEDICAL NESTER · COOK MEDICAL ZENITH · COOK MEDICAL ZILVER PTX · CT THROMBECTOMY SYSTEM KIT · Certus 140 · Cook Medical Advanced Tech · Cook Medical Catheters · Cook Medical Drainage · Cook Medical Zilver PTX · Da Vinci Surgical System · EMBOLD Fibered · EXCLUDER Conformable AAA Endoprosthesis with Active Control · EXCLUDER Iliac Branch Endoprosthesis · FLOWTRIEVER CATHETER · GIAPREZA · GLIDESHEATH SLENDER · GORE TAG Thoracic Branch Endoprosthesis · GORE VIABAHN Endoprosthesis with Heparin · IDC · IVS - VERTEBRAL AUGMENTATION PRODUCTS · Indigo · KYPHON EXPRESS II KYPHOPAK TRAY · NUPLAZID · Navicross · Osphena · Penumbra Ruby Coil · Penumbra System · RUBY Coil · S · SIR-Spheres Microspheres · TAG Thoracic Endoprosthesis · VIABAHN Endoprosthesis with Heparin Bioactive Surface · VIABAHN VBX Balloon Expandable Endoprosthesis · VISUAL-ICE · Viz.AI LVO
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
438
Per 100K population
13.3
County median income
$102,285
Nearest hospital
SCRIPPS MEMORIAL HOSPITAL LA JOLLA
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. Nelson is a mixed practice specialist, with moderate Medicare volume, with low-engagement industry engagement in the top 11% of CA peers, with 19 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. Nelson experienced with contrast dye for imaging (iodine-based)?
Based on Medicare claims data, Dr. Nelson performed 1,180 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. Nelson receive payments from pharmaceutical companies?
Yes. Dr. Nelson received a total of $5,643 from 20 companies across 71 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. Nelson's costs compare to other radiation oncologists in La Jolla?
Dr. Nelson's average Medicare payment per service is $8. 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. Nelson) 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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