Quick answers
- Which hospitals does Andreas Tjoe work at?
- Medicare's official clinician data lists Andreas Tjoe at 1 hospital: Stanford Health Care Tri-Valley. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Andreas Tjoe see patients?
- Medicare's clinician data lists 2 practice locations, including Dublin, CA and Pleasanton, CA. Call before your visit to confirm the address.
- What is Andreas Tjoe's specialty?
- Medicare lists Emergency Medicine as the primary specialty.
- Does Andreas Tjoe accept Medicare assignment?
- Yes. Medicare's clinician data says Andreas Tjoe 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 Andreas Tjoe?
- (925) 479-3773, as listed in official Medicare / NPI Registry data.
- What is Andreas Tjoe's NPI number?
- 1689818940. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Andreas Tjoe works
Medicare's Facility Affiliation Data lists Andreas Tjoe at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Stanford Health Care Tri-ValleyPleasanton, CA · Acute Care Hospital · CCN 050283
Practice locations
Addresses where Andreas Tjoe is enrolled with Medicare (CMS data updated 2026-10-02).
- 4000 Dublin Blvd, Suite 150Dublin, CA 94568 (925) 479‑3773
- 5555 W Las Positas BlvdPleasanton, CA 94588 (925) 416‑3418
Group practices
Medicare enrollment lists Andreas Tjoe as a member of this group (CMS data updated 2026-10-02).
- Pleasanton Emergency Medical Group38 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Dublin
Clinicians with the same Medicare primary specialty in Dublin, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Temple University School Of Medicine |
| Graduation year | 2009 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1689818940 |
| 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