Quick answers
- Which hospitals does Allison Sih work at?
- Medicare's official clinician data lists Allison Sih at 3 hospitals: Alta Bates Summit Medical Center, Alta Bates Summit Medical Center - Alta Bates Camp… and Contra Costa Regional Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Allison Sih see patients?
- Medicare's clinician data lists 2 practice locations, including San Francisco, CA and Berkeley, CA. Call before your visit to confirm the address.
- What is Allison Sih's specialty?
- Medicare lists Urology as the primary specialty.
- Does Allison Sih accept Medicare assignment?
- Yes. Medicare's clinician data says Allison Sih 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 Allison Sih offer telehealth?
- Medicare's clinician data says Allison Sih offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Allison Sih?
- (415) 749-6900, as listed in official Medicare / NPI Registry data.
- What is Allison Sih's NPI number?
- 1871955898. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Allison Sih works
Medicare's Facility Affiliation Data lists Allison Sih at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Alta Bates Summit Medical CenterOakland, CA · Acute Care Hospital · CCN 050043
- Alta Bates Summit Medical Center - Alta Bates Camp…Berkeley, CA · Acute Care Hospital · CCN 050305
- Contra Costa Regional Medical CenterMartinez, CA · Acute Care Hospital · CCN 050276
Practice locations
Addresses where Allison Sih is enrolled with Medicare (CMS data updated 2026-10-02).
- 2186 Geary Blvd, Suite 320San Francisco, CA 94115 (415) 749‑6900
- 2999 Regent St, Suite 612Berkeley, CA 94705 (510) 848‑1727
Group practices
Medicare enrollment lists Allison Sih as a member of these groups (CMS data updated 2026-10-02).
- Genesis Healthcare Partners PC228 clinicians in the group
- Golden Gate Urology Inc12 clinicians in the group
Specialties
- Urologyprimary
Other urologists in San Francisco
Clinicians with the same Medicare primary specialty in San Francisco, 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) | 1871955898 |
| 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