Quick answers
- Which hospitals does Sima Naderi work at?
- Medicare's official clinician data lists Sima Naderi at 2 hospitals: Mercy Medical Center Redding and University of California Davis Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Sima Naderi see patients?
- Medicare's clinician data lists 13 practice locations, including Roseville, CA, Sacramento, CA and Davis, CA. Call before your visit to confirm the address.
- What is Sima Naderi's specialty?
- Medicare lists Diagnostic Radiology as the primary specialty.
- Does Sima Naderi accept Medicare assignment?
- Yes. Medicare's clinician data says Sima Naderi 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 Sima Naderi?
- (916) 851-1440, as listed in official Medicare / NPI Registry data.
- What is Sima Naderi's NPI number?
- 1780661249. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Sima Naderi works
Medicare's Facility Affiliation Data lists Sima Naderi at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Mercy Medical Center ReddingRedding, CA · Acute Care Hospital · CCN 050280
- University of California Davis Medical CenterSacramento, CA · Acute Care Hospital · CCN 050599
Practice locations
Addresses where Sima Naderi is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 13; the Medicare profile lists all.
- 2261 Douglas BlvdRoseville, CA 95661
- 2315 Stockton BlvdSacramento, CA 95817
- 2660 W Covell BlvdDavis, CA 95616
- 3200 Bell RdAuburn, CA 95603
- 3201 Data DrRancho Cordova, CA 95670 (916) 851‑1440
Group practices
Medicare enrollment lists Sima Naderi as a member of this group (CMS data updated 2026-10-02).
- Regents of the Univ of Ca1,584 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in Roseville
Clinicians with the same Medicare primary specialty in Roseville, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Chicago College Of Medicine And Surgery |
| Graduation year | 2001 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1780661249 |
| 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