Quick answers
- Which hospitals does Yan Geng work at?
- Medicare's official clinician data lists Yan Geng at 2 hospitals: Capital Medical Center and Providence St Peter Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Yan Geng see patients?
- Medicare's clinician data lists 2 practice locations, including Lacey, WA and Olympia, WA. Call before your visit to confirm the address.
- What is Yan Geng's specialty?
- Medicare lists Family Practice as the primary specialty, and also Geriatric Medicine.
- Does Yan Geng accept Medicare assignment?
- Yes. Medicare's clinician data says Yan Geng 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 Yan Geng?
- (360) 491-4460, as listed in official Medicare / NPI Registry data.
- What is Yan Geng's NPI number?
- 1104146620. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Yan Geng works
Medicare's Facility Affiliation Data lists Yan Geng at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Capital Medical CenterOlympia, WA · Acute Care Hospital · CCN 500139
- Providence St Peter HospitalOlympia, WA · Acute Care Hospital · CCN 500024
Practice locations
Addresses where Yan Geng is enrolled with Medicare (CMS data updated 2026-10-02).
- 1450 Northwest Ln SE, Suite ALacey, WA 98503 (360) 491‑4460
- 3920 Capital Mall Dr SW, Suite 200Olympia, WA 98502 (360) 459‑7282
Group practices
Medicare enrollment lists Yan Geng as a member of these groups (CMS data updated 2026-10-02).
- Providence Health and Services Washington475 clinicians in the group
- Capital Medical Center Physicians LLC59 clinicians in the group
Specialties
- Family Practiceprimary
- Geriatric Medicinealso
Other family doctors in Lacey
Clinicians with the same Medicare primary specialty in Lacey, WA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1999 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1104146620 |
| 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