Quick answers
- Which hospitals does Michael S. Joo work at?
- Medicare's official clinician data lists Michael S. Joo at 1 hospital: Kaiser Foundation Hospital-San Jose. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Michael S. Joo see patients?
- Medicare's clinician data lists 1 practice location in San Jose, CA. Call before your visit to confirm the address.
- What is Michael S. Joo's specialty?
- Medicare lists Emergency Medicine as the primary specialty.
- Does Michael S. Joo accept Medicare assignment?
- Yes. Medicare's clinician data says Michael S. Joo 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 Michael S. Joo?
- (408) 972-3000, as listed in official Medicare / NPI Registry data.
- What is Michael S. Joo's NPI number?
- 1780973412. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Michael S. Joo works
Medicare's Facility Affiliation Data lists Michael S. Joo at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Kaiser Foundation Hospital-San JoseSan Jose, CA · Acute Care Hospital · CCN 050604
Practice locations
Addresses where Michael S. Joo is enrolled with Medicare (CMS data updated 2026-10-02).
- 250 Hospital PkwySan Jose, CA 95119 (408) 972‑3000
Group practices
Medicare enrollment lists Michael S. Joo as a member of this group (CMS data updated 2026-10-02).
- Permanente Medical Group Inc10,996 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in San Jose
Clinicians with the same Medicare primary specialty in San Jose, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Toledo College Of Medicine |
| Graduation year | 2009 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1780973412 |
| 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