Quick answers
- Which hospitals does Michelle Yen work at?
- Medicare's official clinician data lists Michelle Yen at 2 hospitals: El Camino Health and Sequoia Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Michelle Yen see patients?
- Medicare's clinician data lists 2 practice locations, including Redwood City, CA and Mountain View, CA. Call before your visit to confirm the address.
- What is Michelle Yen's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Michelle Yen accept Medicare assignment?
- Yes. Medicare's clinician data says Michelle Yen 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 Michelle Yen?
- (650) 369-5811, as listed in official Medicare / NPI Registry data.
- What is Michelle Yen's NPI number?
- 1669934683. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Michelle Yen works
Medicare's Facility Affiliation Data lists Michelle Yen at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- El Camino HealthMountain View, CA · Acute Care Hospital · CCN 050308
- Sequoia HospitalRedwood City, CA · Acute Care Hospital · CCN 050197
Practice locations
Addresses where Michelle Yen is enrolled with Medicare (CMS data updated 2026-10-02).
- 170 Alameda De Las PulgasRedwood City, CA 94062 (650) 369‑5811
- 2500 Grant RdMountain View, CA 94040 (650) 940‑7000
Group practices
Medicare enrollment lists Michelle Yen as a member of these groups (CMS data updated 2026-10-02).
- Vituity Hospitalists PC79 clinicians in the group
- Quantum Bay Area Hospitalist Medical Group Inc60 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Redwood City
Clinicians with the same Medicare primary specialty in Redwood City, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2019 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1669934683 |
| 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