Quick answers
- Which hospitals does Sarah Semon work at?
- Medicare's official clinician data lists Sarah Semon at 4 hospitals: Alameda Hospital, Eden Medical Center, Highland Hospital and St Rose Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Sarah Semon see patients?
- Medicare's clinician data lists 3 practice locations, including San Leandro, CA and Alameda, CA. Call before your visit to confirm the address.
- What is Sarah Semon's specialty?
- Medicare lists Infectious Disease as the primary specialty, and also Internal Medicine.
- Does Sarah Semon accept Medicare assignment?
- Yes. Medicare's clinician data says Sarah Semon 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 Sarah Semon offer telehealth?
- Medicare's clinician data says Sarah Semon offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Sarah Semon?
- (925) 463-1318, as listed in official Medicare / NPI Registry data.
- What is Sarah Semon's NPI number?
- 1457988446. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Sarah Semon works
Medicare's Facility Affiliation Data lists Sarah Semon at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Alameda HospitalAlameda, CA · Acute Care Hospital · CCN 050211
- Eden Medical CenterCastro Valley, CA · Acute Care Hospital · CCN 050488
- Highland HospitalOakland, CA · Acute Care Hospital · CCN 050320
- St Rose HospitalHayward, CA · Acute Care Hospital · CCN 050002
Practice locations
Addresses where Sarah Semon is enrolled with Medicare (CMS data updated 2026-10-02).
- 13851 E 14th St, Suite 308San Leandro, CA 94578 (925) 463‑1318
- 13855 E 14th StSan Leandro, CA 94578 (510) 357‑6500
- 2070 Clinton AveAlameda, CA 94501 (510) 522‑3700
Group practices
Medicare enrollment lists Sarah Semon as a member of these groups (CMS data updated 2026-10-02).
- Alameda Health System601 clinicians in the group
- Diablo Infectious Disease Consultative Service Med GRP Inc11 clinicians in the group
Specialties
- Infectious Diseaseprimary
- Internal Medicinealso
Other infectious disease doctors in San Leandro
Clinicians with the same Medicare primary specialty in San Leandro, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2020 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1457988446 |
| 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