Quick answers
- Which hospitals does Nelson J. Owyoung work at?
- Medicare's official clinician data lists Nelson J. Owyoung at 4 hospitals: Garfield Medical Center, Hollywood Presbyterian Medical Center, San Gabriel Valley Medical Center and USC Arcadia Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Nelson J. Owyoung see patients?
- Medicare's clinician data lists 2 practice locations, including Alhambra, CA. Call before your visit to confirm the address.
- What is Nelson J. Owyoung's specialty?
- Medicare lists Neurology as the primary specialty, and also Internal Medicine.
- Does Nelson J. Owyoung accept Medicare assignment?
- Yes. Medicare's clinician data says Nelson J. Owyoung 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 Nelson J. Owyoung?
- (213) 721-5158, as listed in official Medicare / NPI Registry data.
- What is Nelson J. Owyoung's NPI number?
- 1073543641. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Nelson J. Owyoung works
Medicare's Facility Affiliation Data lists Nelson J. Owyoung at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Garfield Medical CenterMonterey Park, CA · Acute Care Hospital · CCN 050737
- Hollywood Presbyterian Medical CenterLos Angeles, CA · Acute Care Hospital · CCN 050063
- San Gabriel Valley Medical CenterSan Gabriel, CA · Acute Care Hospital · CCN 050132
- USC Arcadia HospitalArcadia, CA · Acute Care Hospital · CCN 050238
Practice locations
Addresses where Nelson J. Owyoung is enrolled with Medicare (CMS data updated 2026-10-02).
- 1048 S Garfield AveAlhambra, CA 91801 (213) 721‑5158
- 1048 S Garfield Ave, Suite 202Alhambra, CA 91801
Specialties
- Neurologyprimary
- Internal Medicinealso
Other neurologists in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1981 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1073543641 |
| 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