Quick answers
- Which hospitals does Silvana M. Giannelli work at?
- Medicare's official clinician data lists Silvana M. Giannelli at 4 hospitals: Eisenhower Medical Center, Loma Linda University Medical Center, Pomona Valley Hospital Medical Center and San Antonio Regional Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Silvana M. Giannelli see patients?
- Medicare's clinician data lists 1 practice location in Rancho Cucamonga, CA. Call before your visit to confirm the address.
- What is Silvana M. Giannelli's specialty?
- Medicare lists Endocrinology as the primary specialty, and also Internal Medicine.
- Does Silvana M. Giannelli accept Medicare assignment?
- Yes. Medicare's clinician data says Silvana M. Giannelli 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 Silvana M. Giannelli offer telehealth?
- Medicare's clinician data says Silvana M. Giannelli offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Silvana M. Giannelli?
- (909) 757-8078, as listed in official Medicare / NPI Registry data.
- What is Silvana M. Giannelli's NPI number?
- 1821295247. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Silvana M. Giannelli works
Medicare's Facility Affiliation Data lists Silvana M. Giannelli at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Eisenhower Medical CenterRancho Mirage, CA · Acute Care Hospital · CCN 050573
- Loma Linda University Medical CenterLoma Linda, CA · Acute Care Hospital · CCN 050327
- Pomona Valley Hospital Medical CenterPomona, CA · Acute Care Hospital · CCN 050231
- San Antonio Regional HospitalUpland, CA · Acute Care Hospital · CCN 050099
Practice locations
Addresses where Silvana M. Giannelli is enrolled with Medicare (CMS data updated 2026-10-02).
- 10807 Laurel St, Suite 200Rancho Cucamonga, CA 91730 (909) 757‑8078
Specialties
- Endocrinologyprimary
- Internal Medicinealso
Other endocrinologists in Rancho Cucamonga
Clinicians with the same Medicare primary specialty in Rancho Cucamonga, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2005 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1821295247 |
| 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