Quick answers
- Which hospitals does Ruby E. Koshy work at?
- Medicare's official clinician data lists Ruby E. Koshy at 1 hospital: Riverside University Health System-Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Ruby E. Koshy see patients?
- Medicare's clinician data lists 6 practice locations, including Loma Linda, CA, San Mateo, CA and Moreno Valley, CA. Call before your visit to confirm the address.
- What is Ruby E. Koshy's specialty?
- Medicare lists Neurology as the primary specialty.
- Does Ruby E. Koshy accept Medicare assignment?
- Yes. Medicare's clinician data says Ruby E. Koshy 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 Ruby E. Koshy offer telehealth?
- Medicare's clinician data says Ruby E. Koshy offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Ruby E. Koshy?
- (650) 343-4200, as listed in official Medicare / NPI Registry data.
- What is Ruby E. Koshy's NPI number?
- 1578741369. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Ruby E. Koshy works
Medicare's Facility Affiliation Data lists Ruby E. Koshy at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Riverside University Health System-Medical CenterMoreno Valley, CA · Acute Care Hospital · CCN 050292
Practice locations
Addresses where Ruby E. Koshy is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 6; the Medicare profile lists all.
- 11370 Anderson StLoma Linda, CA 92354
- 123 S San Mateo DrSan Mateo, CA 94401 (650) 343‑4200
- 26520 Cactus AveMoreno Valley, CA 92555
- 26520 Cactus Ave, Suite 2021Moreno Valley, CA 92555 (951) 486‑5700
- 301 Industrial RdSan Carlos, CA 94070
Group practices
Medicare enrollment lists Ruby E. Koshy as a member of these groups (CMS data updated 2026-10-02).
- Sutter Bay Medical Foundation3,829 clinicians in the group
- Faculty Physicians and Surgeons of Llusm1,315 clinicians in the group
Specialties
- Neurologyprimary
Other neurologists in Loma Linda
Clinicians with the same Medicare primary specialty in Loma Linda, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1993 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1578741369 |
| 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