Quick answers
- Which hospitals does Robby Ayoub work at?
- Medicare's official clinician data lists Robby Ayoub at 4 hospitals: Hoag Memorial Hospital Presbyterian, Palmdale Regional Medical Center, Providence St. Joseph Hospital and UCI Health-Orange. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Robby Ayoub see patients?
- Medicare's clinician data lists 4 practice locations, including Orange, CA, Palmdale, CA and Huntington Beach, CA. Call before your visit to confirm the address.
- What is Robby Ayoub's specialty?
- Medicare lists Internal Medicine as the primary specialty, and also Pulmonary Disease and Sleep Medicine.
- Does Robby Ayoub accept Medicare assignment?
- Yes. Medicare's clinician data says Robby Ayoub 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 Robby Ayoub?
- (714) 456-7002, as listed in official Medicare / NPI Registry data.
- What is Robby Ayoub's NPI number?
- 1396958237. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Robby Ayoub works
Medicare's Facility Affiliation Data lists Robby Ayoub at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Hoag Memorial Hospital PresbyterianNewport Beach, CA · Acute Care Hospital · CCN 050224
- Palmdale Regional Medical CenterPalmdale, CA · Acute Care Hospital · CCN 050204
- Providence St. Joseph HospitalOrange, CA · Acute Care Hospital · CCN 050069
- UCI Health-OrangeOrange, CA · Acute Care Hospital · CCN 050348
Practice locations
Addresses where Robby Ayoub is enrolled with Medicare (CMS data updated 2026-10-02).
- 101 the City Dr SOrange, CA 92868 (714) 456‑7002
- 38600 Medical Ctr DrPalmdale, CA 93551 (661) 382‑5000
- 8201 Newman AveHuntington Beach, CA 92647 (714) 847‑6900
- 8201 Newman Ave, Suite 101Huntington Beach, CA 92647
Group practices
Medicare enrollment lists Robby Ayoub as a member of these groups (CMS data updated 2026-10-02).
- UC Regents319 clinicians in the group
- Regents of the University of California60 clinicians in the group
- Palmdale Intensivist Inc16 clinicians in the group
Specialties
- Internal Medicineprimary
- Pulmonary Diseasealso
- Sleep Medicinealso
Other internal medicine doctors in Orange
Clinicians with the same Medicare primary specialty in Orange, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2003 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1396958237 |
| 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