Quick answers
- Which hospitals does Ryan Oconnor work at?
- Medicare's official clinician data lists Ryan Oconnor at 1 hospital: Hollywood Presbyterian Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Ryan Oconnor see patients?
- Medicare's clinician data lists 1 practice location in Los Angeles, CA. Call before your visit to confirm the address.
- What is Ryan Oconnor's specialty?
- Medicare lists Emergency Medicine as the primary specialty.
- Does Ryan Oconnor accept Medicare assignment?
- Yes. Medicare's clinician data says Ryan Oconnor 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 Ryan Oconnor?
- (310) 379-2134, as listed in official Medicare / NPI Registry data.
- What is Ryan Oconnor's NPI number?
- 1821101635. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Ryan Oconnor works
Medicare's Facility Affiliation Data lists Ryan Oconnor at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Hollywood Presbyterian Medical CenterLos Angeles, CA · Acute Care Hospital · CCN 050063
Practice locations
Addresses where Ryan Oconnor is enrolled with Medicare (CMS data updated 2026-10-02).
- 1300 N Vermont AveLos Angeles, CA 90027 (310) 379‑2134
Group practices
Medicare enrollment lists Ryan Oconnor as a member of this group (CMS data updated 2026-10-02).
- Hollywood Presbyterian Emergency Medical Associates, Inc.8 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Los Angeles
Clinicians with the same Medicare primary specialty in Los Angeles, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | New York Medical College |
| Graduation year | 2002 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1821101635 |
| 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