Quick answers
- Where does Greta E. Rios-Steed see patients?
- Medicare's clinician data lists 7 practice locations, including Riverside, CA, Moreno Valley, CA and Lake Elsinore, CA. Call before your visit to confirm the address.
- What is Greta E. Rios-Steed's specialty?
- Medicare lists Family Practice as the primary specialty.
- Does Greta E. Rios-Steed accept Medicare assignment?
- Yes. Medicare's clinician data says Greta E. Rios-Steed 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 Greta E. Rios-Steed offer telehealth?
- Medicare's clinician data says Greta E. Rios-Steed offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Greta E. Rios-Steed?
- (951) 353-2000, as listed in official Medicare / NPI Registry data.
- What is Greta E. Rios-Steed's NPI number?
- 1649708397. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Greta E. Rios-Steed is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 7; the Medicare profile lists all.
- 10800 Magnolia AveRiverside, CA 92505 (951) 353‑2000
- 13925 Indian StMoreno Valley, CA 92553 (855) 505‑7467
- 141 N Main StLake Elsinore, CA 92530 (855) 505‑7467
- 1530 W 6th St, Suite 109Corona, CA 92882 (855) 505‑7467
- 21091 Rider St, Suite 218Perris, CA 92570 (855) 505‑7467
Group practices
Medicare enrollment lists Greta E. Rios-Steed as a member of these groups (CMS data updated 2026-10-02).
- Southern California Permanente Medical Group11,293 clinicians in the group
- Dr. Javier Rios, a Medical Corporation18 clinicians in the group
- Alessandro Medical Professional Corporation16 clinicians in the group
- Javier R Rios MD a Professional Corporation14 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Riverside
Clinicians with the same Medicare primary specialty in Riverside, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2016 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1649708397 |
| 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
- 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