Quick answers
- Which hospitals does Derek K. Richardson work at?
- Medicare's official clinician data lists Derek K. Richardson at 4 hospitals: John Muir Medical Center - Concord Campus, John Muir Medical Center - Walnut Creek Campus, UCSF Health Saint Francis Hospital and Zuckerberg San Francisco General Hospital & Trauma Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Derek K. Richardson see patients?
- Medicare's clinician data lists 2 practice locations, including Walnut Creek, CA and Greenbrae, CA. Call before your visit to confirm the address.
- What is Derek K. Richardson's specialty?
- Medicare lists Emergency Medicine as the primary specialty.
- Does Derek K. Richardson accept Medicare assignment?
- Yes. Medicare's clinician data says Derek K. Richardson 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 Derek K. Richardson?
- (925) 939-3000, as listed in official Medicare / NPI Registry data.
- What is Derek K. Richardson's NPI number?
- 1871750851. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Derek K. Richardson works
Medicare's Facility Affiliation Data lists Derek K. Richardson at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- John Muir Medical Center - Concord CampusConcord, CA · Acute Care Hospital · CCN 050496
- John Muir Medical Center - Walnut Creek CampusWalnut Creek, CA · Acute Care Hospital · CCN 050180
- UCSF Health Saint Francis HospitalSan Francisco, CA · Acute Care Hospital · CCN 050152
- Zuckerberg San Francisco General Hospital & Trauma CenterSan Francisco, CA · Acute Care Hospital · CCN 050228
Practice locations
Addresses where Derek K. Richardson is enrolled with Medicare (CMS data updated 2026-10-02).
- 1601 Ygnacio Valley RdWalnut Creek, CA 94598 (925) 939‑3000
- 250 Bon Air RdGreenbrae, CA 94904 (415) 925‑7000
Group practices
Medicare enrollment lists Derek K. Richardson as a member of this group (CMS data updated 2026-10-02).
- Cep America - California1,292 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Walnut Creek
Clinicians with the same Medicare primary specialty in Walnut Creek, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Michigan Medical School |
| Graduation year | 2007 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1871750851 |
| 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