Quick answers
- Which hospitals does Wilson Tsai work at?
- Medicare's official clinician data lists Wilson Tsai at 4 hospitals: John Muir Medical Center - Concord Campus, John Muir Medical Center - Walnut Creek Campus, Oroville Hospital and Redlands Community Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Wilson Tsai see patients?
- Medicare's clinician data lists 4 practice locations, including Alamo, CA, Walnut Creek, CA and Oroville, CA. Call before your visit to confirm the address.
- What is Wilson Tsai's specialty?
- Medicare lists Thoracic Surgery as the primary specialty.
- Does Wilson Tsai accept Medicare assignment?
- Yes. Medicare's clinician data says Wilson Tsai 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.
- Does Wilson Tsai offer telehealth?
- Medicare's clinician data says Wilson Tsai offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Wilson Tsai?
- (925) 932-6330, as listed in official Medicare / NPI Registry data.
- What is Wilson Tsai's NPI number?
- 1609035666. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Wilson Tsai works
Medicare's Facility Affiliation Data lists Wilson Tsai 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
- Oroville HospitalOroville, CA · Acute Care Hospital · CCN 050030
- Redlands Community HospitalRedlands, CA · Acute Care Hospital · CCN 050272
Practice locations
Addresses where Wilson Tsai is enrolled with Medicare (CMS data updated 2026-10-02).
- 1505 Saint Alphonsus WayAlamo, CA 94507 (925) 932‑6330
- 2637 Shadelands DrWalnut Creek, CA 94598
- 2767 Olice HwyOroville, CA 95966
- 2767 Olive HwyOroville, CA 95966
Group practices
Medicare enrollment lists Wilson Tsai as a member of these groups (CMS data updated 2026-10-02).
- Bass Medical Group291 clinicians in the group
- Orohealth Corporation a Non Profit Healthcare System120 clinicians in the group
Specialties
- Thoracic Surgeryprimary
Other thoracic surgeons in Alamo
Clinicians with the same Medicare primary specialty in Alamo, CA — not a recommendation.
Clinician information
| Graduation year | 1999 |
|---|---|
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1609035666 |
| 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