Quick answers
- Which hospitals does Darby A. Clayson work at?
- Medicare's official clinician data lists Darby A. Clayson at 3 hospitals: Chinese Hospital, UCSF Health Saint Francis Hospital and UCSF Health St. Mary's Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Darby A. Clayson see patients?
- Medicare's clinician data lists 2 practice locations, including San Francisco, CA. Call before your visit to confirm the address.
- What is Darby A. Clayson's specialty?
- Medicare lists Hospitalist as the primary specialty, and also Internal Medicine.
- Does Darby A. Clayson accept Medicare assignment?
- Medicare's clinician data says Darby A. Clayson may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- What is the phone number for Darby A. Clayson?
- (415) 779-8868, as listed in official Medicare / NPI Registry data.
- What is Darby A. Clayson's NPI number?
- 1619968021. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Darby A. Clayson works
Medicare's Facility Affiliation Data lists Darby A. Clayson at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Chinese HospitalSan Francisco, CA · Acute Care Hospital · CCN 050407
- UCSF Health Saint Francis HospitalSan Francisco, CA · Acute Care Hospital · CCN 050152
- UCSF Health St. Mary's HospitalSan Francisco, CA · Acute Care Hospital · CCN 050457
Practice locations
Addresses where Darby A. Clayson is enrolled with Medicare (CMS data updated 2026-10-02).
- 845 Jackson StSan Francisco, CA 94133 (415) 779‑8868
- 900 Hyde StSan Francisco, CA 94109 (415) 353‑6000
Group practices
Medicare enrollment lists Darby A. Clayson as a member of these groups (CMS data updated 2026-10-02).
- Vituity Hospitalists PC79 clinicians in the group
- San Francisco Unified Physicians Group, Inc19 clinicians in the group
Specialties
- Hospitalistprimary
- Internal Medicinealso
Other hospitalists in San Francisco
Clinicians with the same Medicare primary specialty in San Francisco, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Baylor College Of Medicine |
| Graduation year | 1998 |
| Gender (as listed) | Female |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1619968021 |
| 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