Justin Mcwilliams, MD
NPI 1437292331 · Vascular & Interventional Radiology Physician · Los Angeles, CA
Enrolled with Medicare as Practitioner - Interventional Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Justin Mcwilliams, MD is a Vascular & Interventional Radiology Physician provider in Los Angeles, CA (NPI 1437292331).
Provider details
- NPI number
- 1437292331
- Entity type
- Individual
- Primary specialty
- Vascular & Interventional Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- A90982 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
4 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
1,187 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Review By Radiologist of Additional Artery Image75774 | 210 | $47 |
| Insertion of Tube Into Abdominal, Pelvic, Or Leg Artery, Initial Third Order Branch36247 | 107 | $146 |
| Review By Radiologist of Pelvis Artery Image75736 | 100 | $52 |
| Use of a Drug to Induce Depression of Consciousness By Physician Performing a Procedure (5 Years Or Older), Initial 15 Minutes99152 | 99 | $12 |
| Insertion of Tube Into Abdominal, Pelvic, Or Leg Artery, Additional Second, Third, and Beyond36248 | 84 | $48 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 84 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 3 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ciprofloxacin Hcl | 31 | 30 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 29 | 28 |
| Naproxen | 19 | 19 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$39,851 across 71 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (3)
- 100 Ucla Medical Plz Ste 100Los Angeles, CA 90024-7000Phone: (310) 481-7545Fax: (310) 794-9035
- 2200 N Sepulveda BlvdManhattan Beach, CA 90266-2910Phone: (310) 802-0200Fax: (310) 794-9035
- 1245 16th St Ste 110Santa Monica, CA 90404-1240Phone: (310) 319-4033Fax: (310) 794-9035
Registry dates
- Enumerated
- 2007-02-14
- Last updated
- 2019-12-17
- Certified
- 2019-12-17
Frequently asked questions
- What is Justin Mcwilliams's NPI number?
- Justin Mcwilliams's National Provider Identifier (NPI) is 1437292331, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Justin Mcwilliams's specialty?
- Justin Mcwilliams is listed in the NPPES registry with a primary specialty of Vascular & Interventional Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Justin Mcwilliams located?
- Justin Mcwilliams's practice location on file with NPPES is 757 Westwood Plz, Los Angeles, CA 90095-8358.
- What is Justin Mcwilliams's phone number?
- The practice phone number listed in the NPPES registry for Justin Mcwilliams is (310) 301-6800.
- Does Justin Mcwilliams accept Medicare?
- Justin Mcwilliams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Justin Mcwilliams's NPI active?
- Yes — Justin Mcwilliams's NPI (1437292331) is active in the NPPES registry as of the last update on 2019-12-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.