Medicare Enrolled
Dr. Justin McWilliams, MD
Vascular & Interventional Radiology Physician · Los Angeles, CA
Practice pattern: Clinical Cardiology
— Primarily office-based clinical cardiology
Consulting-driven
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. McWilliams 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. McWilliams
Dr. Justin McWilliams is a vascular & interventional radiology physician in Los Angeles, CA, with 19 years of NPI registration. Based on federal Medicare data, Dr. McWilliams performed 972 Medicare services across 743 unique beneficiaries.
Between the years covered by Open Payments, Dr. McWilliams received a total of $272,295 from 39 pharmaceutical and/or device companies across 407 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in vascular & interventional radiology physician. The majority of payments are for consulting, which typically reflects recognized clinical expertise sought by manufacturers. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. McWilliams 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
$272,295 industry payments
Medicare Practice Summary
Medicare Utilization ↗972
Medicare services
Top 43% in CA for vascular & interventional radiology physician
743
Unique beneficiaries
$97
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~51 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 |
|---|---|---|---|
| Radiologist review of additional artery image A radiologist reviews an additional image of an artery. This step involves professional interpretation of the imaging data. |
140 | $38 | $93 |
| Arterial catheter insertion, initial third order branch Insertion of a tube into an abdominal, pelvic, or leg artery, specifically targeting the initial third order branch. |
103 | $120 | $10,253 |
| Radiologist review of pelvis artery image A radiologist examines and interprets imaging of the arteries in the pelvis. This service involves the professional analysis of the visual data to assess the blood vessels. |
102 | $43 | $273 |
| 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. |
101 | $10 | $255 |
| New patient office visit, complex (60-74 min) | 56 | $175 | $1,360 |
| Vessel or growth occlusion with radiologist review A procedure to block blood flow to growths or obstructed vessels, including review by a radiologist. |
53 | $449 | $65,050 |
| 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. |
52 | $12 | $68 |
| Office visit, established patient (30-39 min) A follow-up office visit for an existing patient lasting between 30 and 39 minutes. The visit involves medical evaluation and management of the patient's condition. |
43 | $105 | $858 |
| Arterial tube insertion, additional vessels This code covers the insertion of a tube into an additional artery in the abdomen, pelvis, or leg during a procedure where other arteries have already been accessed. |
42 | $38 | $847 |
| 3D radiographic procedure with computerized image postprocessing A radiographic imaging procedure that creates three-dimensional images using computerized processing of the captured data. |
42 | $32 | $191 |
| Office visit, established patient (20-29 min) An office visit for an existing patient lasting between 20 and 29 minutes. The visit involves medical evaluation and management of the patient's condition. |
42 | $77 | $508 |
| Office visit, established patient, complex (40-54 min) An office or outpatient visit for an existing patient lasting between 40 and 54 minutes. This level of service is determined by the total time spent on the date of the encounter. |
42 | $144 | $960 |
| Limited or follow-up CT scan A computed tomography scan that is limited in scope or performed as a follow-up to a previous examination. |
41 | $38 | $230 |
| Ultrasound guidance for needle placement Use of ultrasound imaging to guide the precise placement of a needle during a medical procedure. |
33 | $25 | $194 |
| Kidney needle biopsy A procedure in which a needle is used to remove a small sample of kidney tissue for examination. |
18 | $107 | $3,076 |
| CT-guided tissue removal A procedure using computed tomography imaging to guide the removal of tissue from the body. |
18 | $155 | $1,043 |
| Radiofrequency ablation of liver tumor A procedure that uses heat generated by radiofrequency energy to destroy abnormal tissue or tumors in the liver through the skin. |
17 | $617 | $26,544 |
| New patient office visit (45-59 min) An initial office visit for a new patient lasting between 45 and 59 minutes. This code covers the total time spent by the physician or qualified healthcare professional on the date of the encounter. |
14 | $142 | $1,085 |
| Liver needle biopsy through skin A procedure in which a needle is inserted through the skin to remove a small sample of liver tissue for examination. |
13 | $69 | $1,793 |
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.
12.3% high complexity
16.2% medium
71.5% routine
Industry Payment Transparency
Open Payments through 2024 ↗$272,295
Total received (2018-2024)
Avg $38,899/year across 7 years
Top 3% in CA for vascular & interventional radiology physician
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
39
Companies
407
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.
Consulting
Expert advisory fees, typically reflecting recognized clinical expertise
$136,739 (50.2%)
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$87,682 (32.2%)
Meals & Travel
Food, beverages, travel, and lodging — typically low-value
$47,875 (17.6%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$39,851
2023
$45,843
2022
$48,350
2021
$45,783
2020
$15,789
2019
$30,889
2018
$45,790
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
Terumo Medical Corporation
$16,298
Siemens Medical Solutions USA, Inc.
$11,260
Penumbra, Inc.
$9,873
GE HEALTHCARE
$725
ASAHI INTECC USA, INC.
$700
Boston Scientific Corporation
$245
Balt USA, LLC
$217
Medtronic, Inc.
$147
Philips North America LLC
$140
Ethicon US, LLC
$110
W. L. Gore & Associates, Inc.
$67
Cook Medical LLC
$40
AngioDynamics, Inc.
$28
Top 3 companies account for 93.9% of 2024 payments
All-time payments by company (2018-2024) ›
Penumbra, Inc.
$75,083
Terumo Medical Corporation
$56,256
Siemens Medical Solutions USA, Inc.
$45,033
Medical Device Business Services, Inc.
$22,445
Boston Scientific Corporation
$19,364
ASAHI INTECC USA, INC.
$15,855
Merit Medical Systems Inc
$9,858
BOSTON SCIENTIFIC CORPORATION
$8,337
Varian Medical Systems, Inc.
$5,100
BioMarin Pharmaceutical Inc.
$4,000
Ethicon US, LLC
$1,545
Biocompatibles, Inc.
$1,453
Medtronic, Inc.
$1,260
Bard Peripheral Vascular, Inc.
$1,208
GE HEALTHCARE
$725
Ethicon Endo-Surgery Inc.
$500
Inari Medical, Inc.
$498
AngioDynamics, Inc.
$383
Cook Incorporated
$352
Balt USA, LLC
$341
Abbott Laboratories
$300
Cook Medical LLC
$267
Philips Electronics North America Corporation
$258
Surefire Medical, Inc.
$244
Ethicon Inc.
$192
ARGON MEDICAL DEVICES, INC.
$152
Maquet Cardiovascular U.S. Sales, L.L.C.
$151
Medtronic Vascular, Inc.
$147
Dova Pharmaceuticals
$145
W. L. Gore & Associates, Inc.
$142
Philips North America LLC
$140
CARDIVA MEDICAL, INC.
$132
Janssen Pharmaceuticals, Inc
$104
BARD PERIPHERAL VASCULAR, INC.
$100
E.R. Squibb & Sons, L.L.C.
$100
Covidien LP
$72
Sirtex Medical Inc
$25
B. Braun Interventional Systems Inc.
$17
Applied Medical Technology Inc
$13
Top 3 companies account for 64.8% of all-time payments
Associated products mentioned in payments ›
(5028) IGT D Systems Und · (8324) Azurion 7 M20 · (P77) Azurion 7 M20 · ABRE · ALPHAVAC · ANGIO-SEAL · ANGIODYNAMICS · ARTIS icono biplane · ASAHI Micro Catheter · ASAHI PTCA Guide Wire · AZUR · AZUR CX DETACHABLE · Allia · AngioSeal · Artis icono floor · Artis pheno · Azur CX Detachable · CARDIVA VASCADE 6/7F VCS · CERTUS 140 MICROWAVE ABLATION SYSTEM · CLEANER · CONCERTOTM · COOK CELECT · COOK MEDICAL DRAINAGE · COOK MEDICAL LIVER ACCESS · COOK MEDICAL ZILVER PTX · Certus 140 · Concerto · Cook Medical Drainage · Cook Medical Zilver PTX · CorPath GRX · DIREXION · Doptelet · EKOSONIC · ELIQUIS · EMBOLD Fibered · EMBOZENE · Embozene · Endurant · FLIXENE · FLOWTRIEVER CATHETER · FUSION BIOLINE · FlowTriever · GENERAL CATHETERS · GENERAL EMBOLICS · GENERAL METALLIC STENTS · GENERAL - EMBOLICS · GENERAL ATHERECTOMY · GENERAL EMBOLICS · GENERAL IO ABLATION · GENERAL NONVASCULAR INTERVENTION · GENERAL VASCULAR INTERVENTION · GJ · GLIDESHEATH SLENDER · GLIDEWIRE · GORE VIABAHN VBX Balloon Expandable Endo · GORE VIATORR TIPS Endoprosthesis · GlideWire · HYDROPEARL · HawkOne · HydroPearl · IGT_D Peripheral · INTELLIS ADAPTIVESTIM · INTERLOCK · Indigo · Indigo System · JETI · MAGNETOM Free.Max · MVP · Mahurkar · MicroThermX Microwave Ablation System · NAEOTOM Alpha · NAVICROSS · Navicross · Neuwave · OPTION · OPTITORQUE · Ostial Pro Stent Positioning System · PERIPHERAL VASCULAR · POD · Palindrome · Penumbra Ruby Coil · Penumbra System · Perclose ProGlide suture mediated closure system · Prestige Coil System · RUBY Coil · S · SIR-Spheres Microspheres · SOMATOM Drive · SOMATOM X.cite · SUPERA · SpyGlass · SpyGlass Discover · Surefire Infusion Systems · THERAPIES · THERASPHERE - BIO · TR BAND · TR Band · TheraSphere Y90 Glass Microspheres 10 GBq · TheraSphere Y90 Glass Microspheres 7.0 GBq (US Commercial) · VENATECH VASCULAR IMPLANT · VIATORR TIPS Endoprosthesis w/ · XARELTO · ZILVER PTX · 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 →
The majority of payments (50%) are consulting fees, which typically reflect recognized clinical expertise sought by manufacturers. Total industry engagement is in the top 3% for vascular & interventional radiology physician in CA.
Geographic Context
Vascular & interventional radiology physicians within 10 mi
87
Per 100K population
0.9
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 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. McWilliams is a clinical cardiology specialist, with moderate Medicare volume, with consulting-driven industry engagement in the top 3% 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. McWilliams experienced with radiologist review of additional artery image?
Based on Medicare claims data, Dr. McWilliams performed 140 radiologist review of additional artery image 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. McWilliams receive payments from pharmaceutical companies?
Yes. Dr. McWilliams received a total of $272,295 from 39 companies across 407 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. McWilliams's costs compare to other vascular & interventional radiology physicians in Los Angeles?
Dr. McWilliams's average Medicare payment per service is $97. 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. McWilliams) 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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