Medicare Enrolled

Dr. Jason Lee, M.D.

Radiation Oncology · Thousand Oaks, CA
Practice pattern: Mixed Practice — Diverse clinical practice across multiple procedure types
Low-engagement
227 W JANSS RD, Thousand Oaks, CA 91360
8054967755
In practice since 2006 (19 years)
NPI: 1104830371 verify on NPPES ↗
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. Lee 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. Lee? Request a correction or review of any data shown here. Provider portal →

What this data tells you about Dr. Lee

Dr. Jason Lee is a radiation oncology specialist in Thousand Oaks, CA, with 19 years of NPI registration. Based on federal Medicare data, Dr. Lee performed 27,594 Medicare services across 3,746 unique beneficiaries.

Between the years covered by Open Payments, Dr. Lee received a total of $337 from 6 pharmaceutical and/or device companies across 11 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. Lee 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 7% volume in CA $337 industry payments

Medicare Practice Summary

Medicare Utilization ↗
27,594
Medicare services
Top 7% in CA for radiation oncology
3,746
Unique beneficiaries
$9
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~1,452 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.
15,860 $0 $1
MRI contrast dye injection (gadobutrol) 7,890 $0 $8
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.
1,280 $7 $34
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.
185 $103 $698
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.
121 $90 $522
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.
100 $36 $170
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.
89 $66 $277
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.
86 $7 $28
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.
84 $274 $1,143
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.
76 $68 $276
Complete ultrasound of retroperitoneum
An ultrasound examination of the structures located behind the abdominal cavity.
69 $28 $116
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.
69 $36 $116
CT scan of chest with contrast
A computed tomography scan of the chest using a contrast dye to enhance the visibility of internal structures.
60 $107 $923
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.
60 $22 $93
Abdominal X-ray, 1 view
An X-ray image of the abdomen taken from a single angle to visualize internal structures.
59 $7 $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.
55 $9 $41
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.
51 $11 $46
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.
50 $10 $45
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.
49 $103 $642
Venipuncture for blood draw
Insertion of a needle into a vein to collect blood samples. This procedure is performed on patients aged 3 years or older.
48 $7 $35
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.
48 $147 $686
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.
47 $282 $2,043
Fluorodeoxyglucose f-18 fdg, diagnostic, per study dose, up to 45 millicuries 47 $281 $418
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.
45 $7 $27
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.
40 $161 $1,288
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.
40 $7 $30
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.
40 $1,413 $4,452
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.
39 $7 $31
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.
37 $12 $52
CT scan of heart for calcium evaluation
A CT scan of the heart used to evaluate calcium levels in the blood vessels.
37 $86 $353
MRI of leg joint, without contrast
A magnetic resonance imaging scan of a joint in the leg performed without the use of contrast dye.
34 $130 $928
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.
34 $27 $106
Swallowing function imaging
Imaging used to evaluate how well a person can swallow. This procedure visualizes the swallowing process to assess function.
33 $21 $83
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.
32 $82 $334
Infusion tube insertion with imaging guidance
A radiologist inserts an infusion tube into the body while using imaging guidance to ensure proper placement and reviews the procedure.
31 $68 $315
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.
31 $76 $427
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.
28 $86 $513
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.
27 $7 $27
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.
26 $222 $1,087
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.
26 $91 $472
Radiologist review of CT-guided needle placement
A radiologist reviews the CT imaging used to guide the placement of a needle.
25 $54 $205
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.
23 $6 $27
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.
23 $325 $1,465
MRI of arm joint, without contrast
An MRI scan uses magnetic fields and radio waves to create detailed images of the arm joint. This specific procedure is performed without the use of a contrast dye.
22 $160 $1,061
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.
22 $39 $170
Chest fluid aspiration with imaging guidance
This procedure involves removing fluid from the chest cavity using imaging technology to guide the needle placement.
21 $89 $346
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 $27
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.
21 $24 $97
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.
20 $114 $716
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.
20 $6 $27
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.
20 $17 $68
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.
19 $35 $177
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.
19 $7 $33
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.
18 $9 $48
Abdominal fluid drainage with imaging guidance
Removal of fluid from the abdominal cavity using imaging technology to guide the procedure.
17 $82 $339
Complete ultrasound of abdomen
A diagnostic imaging test that uses sound waves to create detailed pictures of the organs and structures within the abdomen.
17 $32 $130
Bone marrow biopsy and aspiration
A procedure to remove a small sample of bone marrow and liquid for laboratory testing. The sample is analyzed to help diagnose various medical conditions.
16 $55 $290
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.
16 $48 $187
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.
16 $43 $173
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.
16 $6 $28
Lung ventilation and perfusion scan
A nuclear medicine test that uses radioactive tracers to evaluate both air flow (ventilation) and blood flow (perfusion) in the lungs.
16 $41 $162
MRI of pelvis, without contrast
A magnetic resonance imaging scan of the pelvic area performed without the use of contrast dye.
15 $89 $344
Abdominal X-ray, 2 views
An X-ray imaging test of the abdomen using two different angles to visualize internal structures.
15 $9 $43
Nuclear medicine liver and bile duct scan
A nuclear medicine imaging test to evaluate the liver and bile duct system.
15 $27 $113
MRI of abdomen with and without contrast
An MRI scan of the abdomen using contrast dye before and after administration to create detailed images of internal structures.
14 $322 $1,718
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.
14 $63 $244
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 $32 $113
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.
13 $19 $89
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.
12 $6 $28
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.
12 $6 $27
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
92.2% medium
7.6% routine

Industry Payment Transparency

Open Payments through 2024 ↗
$337
Total received (2018-2024)
Avg $67/year across 5 years
Top 38% in CA for radiation oncology
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
6
Companies
11
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
$337 (100.0%)

Payment trend by year

Annual totals from pharmaceutical and medical device companies.

2024
$117
2023
$39
2022
$48
2019
$99
2018
$34

Payments by company (2024)

Consulting
Speaking
Meals & Travel
Research
PFIZER INC.
$102
E.R. Squibb & Sons, L.L.C.
$15
Top 3 companies account for 100.0% of 2024 payments
All-time payments by company (2018-2024) ›
PFIZER INC.
$102
Stryker Corporation
$66
E.R. Squibb & Sons, L.L.C.
$62
Medical Device Business Services, Inc.
$47
Medtronic, Inc.
$39
AngioDynamics, Inc.
$20
Top 3 companies account for 68.4% of all-time payments
Associated products mentioned in payments ›
CAMZYOS · ELIQUIS · EMBOTRAP II Revascularization Device · IVS - IVAS · KYPHON EXPRESS II KYPHOPAK TRAY · VYNDAQEL
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.

Looking for a radiation oncology specialist in Thousand Oaks?
Compare radiation oncologists in the Thousand Oaks area by procedure volume, costs, and industry payment transparency.
Browse radiation oncologists nearby

Geographic Context

Radiation oncologists within 10 mi
111
Per 100K population
13.2
County median income
$107,327
Nearest hospital
LOS ROBLES HOSPITAL & MEDICAL CENTER
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. Lee is a mixed practice specialist, with above-average Medicare volume (top 7% in CA), with low-engagement industry engagement, 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. Lee experienced with contrast dye for imaging (iodine-based)?
Based on Medicare claims data, Dr. Lee performed 15,860 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. Lee receive payments from pharmaceutical companies?
Yes. Dr. Lee received a total of $337 from 6 companies across 11 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. Lee's costs compare to other radiation oncologists in Thousand Oaks?
Dr. Lee's average Medicare payment per service is $9. 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. Lee) 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 →
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

Data Disclaimer — Data sourced from the Centers for Medicare & Medicaid Services (CMS): National Plan and Provider Enumeration System (NPPES), Open Payments program, Medicare Provider Utilization and Payment Data, and Provider Enrollment & Certification data (PECOS). Published under the Freedom of Information Act (FOIA). This website is not affiliated with, endorsed by, or authorized by CMS, HHS, or the U.S. Government. Data may contain errors as reported to CMS by providers and reporting entities. Payments from industry are legal and do not indicate wrongdoing. Medicare data reflects only patients aged 65+ or those with qualifying disabilities. For corrections, contact CMS directly. This information does not constitute medical advice and should not be used as the sole basis for choosing a healthcare provider. Procedure descriptions use plain language and do not reference CPT® codes, which are copyrighted by the American Medical Association. Full methodology → · Report a data error → · Privacy policy →