Quick answers
- Which hospitals does David A. Wei work at?
- Medicare's official clinician data lists David A. Wei at 3 hospitals: John Muir Medical Center - Concord Campus, John Muir Medical Center - Walnut Creek Campus and San Ramon Regional Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does David A. Wei see patients?
- Medicare's clinician data lists 4 practice locations, including Walnut Creek, CA, Concord, CA and San Ramon, CA. Call before your visit to confirm the address.
- What is David A. Wei's specialty?
- Medicare lists Emergency Medicine as the primary specialty.
- Does David A. Wei accept Medicare assignment?
- Yes. Medicare's clinician data says David A. Wei 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 David A. Wei?
- (925) 471-4291, as listed in official Medicare / NPI Registry data.
- What is David A. Wei's NPI number?
- 1437354081. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where David A. Wei works
Medicare's Facility Affiliation Data lists David A. Wei 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
- San Ramon Regional Medical CenterSan Ramon, CA · Acute Care Hospital · CCN 050689
Practice locations
Addresses where David A. Wei is enrolled with Medicare (CMS data updated 2026-10-02).
- 112 La Casa Via, Suite 135Walnut Creek, CA 94598 (925) 471‑4291
- 1601 Ygnacio Valley RdWalnut Creek, CA 94598 (925) 939‑3000
- 2540 E StConcord, CA 94520 (929) 682‑8200
- 5401 Norris Canyon Rd, Suite 100San Ramon, CA 94583 (925) 275‑8210
Group practices
Medicare enrollment lists David A. Wei as a member of these groups (CMS data updated 2026-10-02).
- Cep America - California1,292 clinicians in the group
- Medamerica Physician Solutions PC28 clinicians in the group
- Cep America - Auc PC16 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 | Northwestern University Feinberg Medical School |
| Graduation year | 2007 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1437354081 |
| 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