Quick answers
- Which hospitals does Walid S. Arnaout work at?
- Medicare's official clinician data lists Walid S. Arnaout at 2 hospitals: Los Robles Hospital & Medical Center and Northridge Hospital Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Walid S. Arnaout see patients?
- Medicare's clinician data lists 3 practice locations, including Northridge, CA and Thousand Oaks, CA. Call before your visit to confirm the address.
- What is Walid S. Arnaout's specialty?
- Medicare lists General Surgery as the primary specialty.
- Does Walid S. Arnaout accept Medicare assignment?
- Yes. Medicare's clinician data says Walid S. Arnaout 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.
- Does Walid S. Arnaout offer telehealth?
- Medicare's clinician data says Walid S. Arnaout offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Walid S. Arnaout?
- (818) 998-8591, as listed in official Medicare / NPI Registry data.
- What is Walid S. Arnaout's NPI number?
- 1023072816. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Walid S. Arnaout works
Medicare's Facility Affiliation Data lists Walid S. Arnaout at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Los Robles Hospital & Medical CenterThousand Oaks, CA · Acute Care Hospital · CCN 050549
- Northridge Hospital Medical CenterNorthridge, CA · Acute Care Hospital · CCN 050116
Practice locations
Addresses where Walid S. Arnaout is enrolled with Medicare (CMS data updated 2026-10-02).
- 18300 Roscoe BlvdNorthridge, CA 91325 (818) 998‑8591
- 215 W Janss RdThousand Oaks, CA 91360 (805) 497‑2727
- 77 Rolling Oaks Dr, Suite 203Thousand Oaks, CA 91361 (805) 379‑9696
Group practices
Medicare enrollment lists Walid S. Arnaout as a member of these groups (CMS data updated 2026-10-02).
- Acute Care Surgery Medical Group Inc204 clinicians in the group
- Northridge Trauma Surgeons Inc a Medical Corporation13 clinicians in the group
Specialties
- General Surgeryprimary
Other general surgeons in Northridge
Clinicians with the same Medicare primary specialty in Northridge, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1985 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1023072816 |
| 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