Quick answers
- Which hospitals does Jonathan R. Barclay work at?
- Medicare's official clinician data lists Jonathan R. Barclay at 1 hospital: Lac/Olive View-Ucla Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Jonathan R. Barclay see patients?
- Medicare's clinician data lists 8 practice locations, including Los Angeles, CA, Beverly Hills, CA and Irvine, CA. Call before your visit to confirm the address.
- What is Jonathan R. Barclay's specialty?
- Medicare lists Diagnostic Radiology as the primary specialty.
- Does Jonathan R. Barclay accept Medicare assignment?
- Yes. Medicare's clinician data says Jonathan R. Barclay accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Jonathan R. Barclay?
- (480) 306-6949, as listed in official Medicare / NPI Registry data.
- What is Jonathan R. Barclay's NPI number?
- 1871014829. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Jonathan R. Barclay works
Medicare's Facility Affiliation Data lists Jonathan R. Barclay at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Lac/Olive View-Ucla Medical CenterSylmar, CA · Acute Care Hospital · CCN 050040
Practice locations
Addresses where Jonathan R. Barclay is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 8; the Medicare profile lists all.
- 11008 Ayres AveLos Angeles, CA 90064 (480) 306‑6949
- 155 N San Vicente Blvd, Simonmed Imaging San VicenteBeverly Hills, CA 90211 (323) 433‑7800
- 15775 Laguna Canyon Rd, Suite 140Irvine, CA 92618 (949) 522‑8120
- 24 Pacific GrvIrvine, CA 92602 (480) 306‑6949
- 24022 Calle De La Plata, Suite 100Laguna Hills, CA 92653 (949) 330‑8996
Group practices
Medicare enrollment lists Jonathan R. Barclay as a member of these groups (CMS data updated 2026-10-02).
- Simonmed Imaging Florida LLC317 clinicians in the group
- Health Diagnostics of California a Professional Corporation183 clinicians in the group
- Southern Mono Health Care District100 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in Los Angeles
Clinicians with the same Medicare primary specialty in Los Angeles, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2017 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1871014829 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians