Medicare Enrolled
Dr. Kamal Massis, M.D.
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. Massis 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. Massis
Dr. Kamal Massis is a radiation oncology specialist in El Segundo, CA, with 20 years of NPI registration. Based on federal Medicare data, Dr. Massis performed 16,576 Medicare services across 3,219 unique beneficiaries.
Between the years covered by Open Payments, Dr. Massis received a total of $12,247 from 34 pharmaceutical and/or device companies across 223 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. Massis 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 12% volume in CA
$12,247 industry payments
Medicare Practice Summary
Medicare Utilization ↗16,576
Medicare services
Top 12% in CA for radiation oncology
3,219
Unique beneficiaries
$16
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~829 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. |
13,449 | $0 | $1 |
| 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. |
776 | $95 | $795 |
| 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. |
224 | $65 | $253 |
| Complete ultrasound of retroperitoneum An ultrasound examination of the structures located behind the abdominal cavity. |
217 | $69 | $332 |
| 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. |
217 | $126 | $492 |
| Low dose CT scan of chest for lung cancer screening A specialized CT scan of the chest using a lower radiation dose to screen for lung cancer. |
178 | $136 | $678 |
| Complete ultrasound of abdomen A diagnostic imaging test that uses sound waves to create detailed pictures of the organs and structures within the abdomen. |
158 | $74 | $341 |
| 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. |
137 | $54 | $586 |
| CT scan of chest with contrast A computed tomography scan of the chest using a contrast dye to enhance the visibility of internal structures. |
121 | $103 | $929 |
| 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. |
93 | $79 | $374 |
| 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. |
81 | $12 | $211 |
| 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. |
77 | $25 | $84 |
| 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. |
74 | $10 | $168 |
| 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. |
69 | $120 | $566 |
| Limited retroperitoneal ultrasound A focused ultrasound exam of the area behind the abdominal cavity to evaluate specific structures. |
63 | $42 | $241 |
| 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. |
61 | $167 | $505 |
| 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. |
59 | $14 | $315 |
| 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. |
50 | $28 | $484 |
| 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. |
49 | $99 | $256 |
| Complete pelvic ultrasound An imaging test using sound waves to create pictures of the organs and structures within the pelvis. |
48 | $67 | $266 |
| 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. |
45 | $50 | $221 |
| 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. |
43 | $30 | $143 |
| 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. |
41 | $74 | $288 |
| 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. |
33 | $207 | $4,909 |
| 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. |
30 | $166 | $1,519 |
| 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. |
25 | $29 | $176 |
| Ultrasound of abdomen and pelvis blood flow An ultrasound exam that uses sound waves to visualize and assess blood flow through the arteries and veins in the abdomen and pelvis. |
24 | $89 | $539 |
| Ultrasound of scrotum An imaging test that uses sound waves to create pictures of the scrotum and its contents. It helps evaluate the testicles and surrounding structures. |
22 | $55 | $609 |
| 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. |
20 | $109 | $2,537 |
| Complete ultrasound of abdomen and pelvis blood flow This procedure uses sound waves to create images of blood flow in the arteries and veins of the abdomen and pelvis. It evaluates the rate and direction of blood movement within these vessels. |
20 | $154 | $840 |
| 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. |
17 | $259 | $2,601 |
| Initial hospital admission, moderate complexity Initial hospital inpatient or observation care for a new patient involving moderate-level medical decision making, with at least 55 minutes total time on the date of the encounter. |
17 | $103 | $1,270 |
| Ultrasound of hemodialysis access An ultrasound imaging test used to evaluate the blood flow and structure of a hemodialysis access site. |
14 | $19 | $287 |
| Central venous port insertion A surgical procedure to place a small reservoir under the skin for long-term access to the bloodstream. The device is connected to a vein to allow for repeated medication administration or blood draws. |
12 | $267 | $6,174 |
| 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. |
12 | $66 | $1,278 |
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.
0.5% high complexity
97.9% medium
1.6% routine
Industry Payment Transparency
Open Payments through 2024 ↗$12,247
Total received (2018-2024)
Avg $1,750/year across 7 years
Top 8% in CA for radiation oncology
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
34
Companies
223
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
$10,131 (82.7%)
Consulting
Expert advisory fees, typically reflecting recognized clinical expertise
$2,116 (17.3%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$915
2023
$4,038
2022
$1,326
2021
$1,992
2020
$529
2019
$2,002
2018
$1,445
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
Inari Medical, Inc.
$352
Cook Medical LLC
$274
Boston Scientific Corporation
$87
Okami Medical, Inc.
$86
Penumbra, Inc.
$57
TriSalus Life Sciences, Inc.
$23
Bard Peripheral Vascular, Inc.
$22
Sirtex Medical Inc
$13
Top 3 companies account for 78.0% of 2024 payments
All-time payments by company (2018-2024) ›
ARGON MEDICAL DEVICES, INC.
$2,199
Inari Medical, Inc.
$2,129
Cook Medical LLC
$1,468
Boston Scientific Corporation
$1,047
Penumbra, Inc.
$688
Medtronic, Inc.
$610
AngioDynamics, Inc.
$606
Bard Peripheral Vascular, Inc.
$486
BOSTON SCIENTIFIC CORPORATION
$324
Medtronic Vascular, Inc.
$321
Biocompatibles, Inc.
$311
Balt USA, LLC
$246
Stryker Corporation
$232
Terumo Medical Corporation
$192
BARD PERIPHERAL VASCULAR, INC.
$191
W. L. Gore & Associates, Inc.
$177
Surefire Medical, Inc.
$162
TriSalus Life Sciences, Inc.
$147
EKOS Corporation
$109
Okami Medical, Inc.
$86
Medtronic USA, Inc.
$76
Cardinal Health 200, LLC
$55
Endocare, Inc.
$44
Merit Medical Systems Inc
$43
Covidien LP
$39
GE HEALTHCARE
$36
CARDIVA MEDICAL, INC.
$36
DePuy Synthes Sales Inc.
$34
Dova Pharmaceuticals
$31
Sirtex Medical Inc
$28
PFIZER INC.
$25
Eisai Inc.
$24
EISAI INC.
$24
Bayer HealthCare Pharmaceuticals Inc.
$21
Top 3 companies account for 47.3% of all-time payments
Associated products mentioned in payments ›
ABRE · AMPLATZ · AZUR · AZUR CX DETACHABLE · Abre · AngioJet Ultra 5000A · AngioSeal · AngioVac · BIOFLO · COOK · COOK MEDICAL CATHETERS · COOK MEDICAL GI PRODUCTS · COOK MEDICAL MICROPUNCTURE · COVERA · CT THROMBECTOMY SYSTEM KIT · Cleaner · Concerto · Cook Medical Angioplasty · Cook Medical Embolization · DIREXION · Doptelet · EKOSONIC · ELIQUIS · ELUVIA · EMBOLD Fibered · EXCLUDER AAA Endoprosthesis · Emprint · FLOWTRIEVER CATHETER · FlowTriever · GENERAL EMBOLICS · GENERAL EMBOLICS · GENERAL - EMBOLICS · GENERAL - NON-VASCULAR INTERVENTION · GENERAL EMBOLICS · General - Atherectomy · General - Embolics · IN.PACT AV · IN.PACT Admiral · IVCF · IVS - AVA · Indigo · Indigo System · KYPHON Balloon Kyphoplasty · LAVA LES (Liquid Embolic System) · LOBO · LUTONIX · Lenvima · Lunderquist · MICRUSFRAME · MVP · MynxGrip Vascular Closure Device · NanoKnife · Nexavar · OPTION · OSTEOCOOL RF ABLATION SYSTEM · POD · PROGREAT · Penumbra Ruby Coil · Precision Infusion System · RETRIEVAL KIT · RUBY Coil · Retrieval Kit · S · SIR-Spheres Microspheres · SilverHawk · StabiliT · Surefire Infusion Systems · THERASPHERE · THERASPHERE - BIO · THERASPHERE-BIO · TIPS · TORNADO · TRINAV INFUSION SYSTEM · TRUSELECT · Torcon NB · Tornado · VIABAHN Endoprosthesis with Heparin Bioactive Surface · Vascular Closure Device · Venovo · ZILVER PTX · ZILVER VENA · 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 (83%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians. Total industry engagement is in the top 8% 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. Massis is a mixed practice specialist, with above-average Medicare volume (top 12% in CA), with low-engagement industry engagement in the top 8% 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. Massis experienced with contrast dye for imaging (iodine-based)?
Based on Medicare claims data, Dr. Massis performed 13,449 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. Massis receive payments from pharmaceutical companies?
Yes. Dr. Massis received a total of $12,247 from 34 companies across 223 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. Massis's costs compare to other radiation oncologists in El Segundo?
Dr. Massis's average Medicare payment per service is $16. 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. Massis) 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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