Quick answers
- Which hospitals does Raffi Kotoyan work at?
- Medicare's official clinician data lists Raffi Kotoyan at 5 hospitals: Henry Mayo Newhall Hospital, Northridge Hospital Medical Center, Providence Cedars Sinai Tarzana Medical Center, Providence Holy Cross Medical Center and St Johns Regional Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Raffi Kotoyan see patients?
- Medicare's clinician data lists 1 practice location in Northridge, CA. Call before your visit to confirm the address.
- What is Raffi Kotoyan's specialty?
- Medicare lists Thoracic Surgery as the primary specialty.
- Does Raffi Kotoyan accept Medicare assignment?
- Yes. Medicare's clinician data says Raffi Kotoyan 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 Raffi Kotoyan?
- (818) 993-4471, as listed in official Medicare / NPI Registry data.
- What is Raffi Kotoyan's NPI number?
- 1154680981. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Raffi Kotoyan works
Medicare's Facility Affiliation Data lists Raffi Kotoyan at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Henry Mayo Newhall HospitalValencia, CA · Acute Care Hospital · CCN 050624
- Northridge Hospital Medical CenterNorthridge, CA · Acute Care Hospital · CCN 050116
- Providence Cedars Sinai Tarzana Medical CenterTarzana, CA · Acute Care Hospital · CCN 050761
- Providence Holy Cross Medical CenterMission Hills, CA · Acute Care Hospital · CCN 050278
- St Johns Regional Medical CenterOxnard, CA · Acute Care Hospital · CCN 050082
Practice locations
Addresses where Raffi Kotoyan is enrolled with Medicare (CMS data updated 2026-10-02).
- 18350 Roscoe Blvd, Suite 201Northridge, CA 91325 (818) 993‑4471
Group practices
Medicare enrollment lists Raffi Kotoyan as a member of this group (CMS data updated 2026-10-02).
- Soltero and Yasuda Associates Cardiothoracic and Vascular Surgery Medi5 clinicians in the group
Specialties
- Thoracic Surgeryprimary
Other thoracic surgeons in Northridge
Clinicians with the same Medicare primary specialty in Northridge, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Louisville School Of Medicine |
| Graduation year | 2012 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1154680981 |
| 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