Quick answers
- Which hospitals does Irvin Calderon work at?
- Medicare's official clinician data lists Irvin Calderon at 2 hospitals: Ronald Reagan UCLA Medical Center and Santa Monica - UCLA Medical Center & Orthopaedic Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Irvin Calderon see patients?
- Medicare's clinician data lists 2 practice locations, including Los Angeles, CA. Call before your visit to confirm the address.
- What is Irvin Calderon's specialty?
- Medicare lists Diagnostic Radiology as the primary specialty.
- Does Irvin Calderon accept Medicare assignment?
- Yes. Medicare's clinician data says Irvin Calderon 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 Irvin Calderon?
- (310) 206-0456, as listed in official Medicare / NPI Registry data.
- What is Irvin Calderon's NPI number?
- 1700462728. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Irvin Calderon works
Medicare's Facility Affiliation Data lists Irvin Calderon at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Ronald Reagan UCLA Medical CenterLos Angeles, CA · Acute Care Hospital · CCN 050262
- Santa Monica - UCLA Medical Center & Orthopaedic HospitalSanta Monica, CA · Acute Care Hospital · CCN 050112
Practice locations
Addresses where Irvin Calderon is enrolled with Medicare (CMS data updated 2026-10-02).
- 300 UCLA Medical Plz, Suite B130Los Angeles, CA 90095 (310) 206‑0456
- 757 Westwood PlzLos Angeles, CA 90095 (310) 825‑9111
Group practices
Medicare enrollment lists Irvin Calderon as a member of this group (CMS data updated 2026-10-02).
- UCLA Radiology Medical Group202 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 | 2021 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1700462728 |
| 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