Quick answers
- Where does Ryan E. Derby see patients?
- Medicare's clinician data lists 2 practice locations, including Stanford, CA and Emeryville, CA. Call before your visit to confirm the address.
- What is Ryan E. Derby's specialty?
- Medicare lists Pain Management as the primary specialty, and also Anesthesiology.
- Does Ryan E. Derby accept Medicare assignment?
- Yes. Medicare's clinician data says Ryan E. Derby 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 Ryan E. Derby?
- (650) 723-4000, as listed in official Medicare / NPI Registry data.
- What is Ryan E. Derby's NPI number?
- 1306055231. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Ryan E. Derby is enrolled with Medicare (CMS data updated 2026-10-02).
- 300 Pasteur DrStanford, CA 94305 (650) 723‑4000
- 5800 Hollis StEmeryville, CA 94608 (510) 806‑2100
Group practices
Medicare enrollment lists Ryan E. Derby as a member of this group (CMS data updated 2026-10-02).
- Stanford Health Care3,122 clinicians in the group
Specialties
- Pain Managementprimary
- Anesthesiologyalso
Other pain management doctors in Stanford
Clinicians with the same Medicare primary specialty in Stanford, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Utah School Of Medicine |
| Graduation year | 2006 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1306055231 |
| 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
- 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