Quick answers
- Which hospitals does David J. Wallace work at?
- Medicare's official clinician data lists David J. Wallace at 5 hospitals: Alameda Hospital, Alta Bates Summit Medical Center, Alta Bates Summit Medical Center - Alta Bates Camp…, Eden Medical Center and Highland Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does David J. Wallace see patients?
- Medicare's clinician data lists 3 practice locations, including San Leandro, CA, Castro Valley, CA and Berkeley, CA. Call before your visit to confirm the address.
- What is David J. Wallace's specialty?
- Medicare lists Critical Care (Intensivists) as the primary specialty, and also Internal Medicine.
- Does David J. Wallace accept Medicare assignment?
- Yes. Medicare's clinician data says David J. Wallace 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 J. Wallace?
- (510) 357-6500, as listed in official Medicare / NPI Registry data.
- What is David J. Wallace's NPI number?
- 1770780835. 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 J. Wallace works
Medicare's Facility Affiliation Data lists David J. Wallace at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Alameda HospitalAlameda, CA · Acute Care Hospital · CCN 050211
- 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
- Eden Medical CenterCastro Valley, CA · Acute Care Hospital · CCN 050488
- Highland HospitalOakland, CA · Acute Care Hospital · CCN 050320
Practice locations
Addresses where David J. Wallace is enrolled with Medicare (CMS data updated 2026-10-02).
- 13855 E 14th StSan Leandro, CA 94578 (510) 357‑6500
- 20103 Lake Chabot RdCastro Valley, CA 94546 (510) 537‑1234
- 2450 Ashby AveBerkeley, CA 94705 (510) 204‑4444
Group practices
Medicare enrollment lists David J. Wallace as a member of these groups (CMS data updated 2026-10-02).
- Alameda Health System601 clinicians in the group
- Inpatient Specialists of California PC385 clinicians in the group
Specialties
Find other Critical Care (Intensivists) doctors in California →
Other critical care doctors in San Leandro
Clinicians with the same Medicare primary specialty in San Leandro, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2004 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1770780835 |
| 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