Quick answers
- Which hospitals does Siwen Liu work at?
- Medicare's official clinician data lists Siwen Liu at 1 hospital: Western Wisconsin Health. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Siwen Liu see patients?
- Medicare's clinician data lists 1 practice location in Baldwin, WI. Call before your visit to confirm the address.
- What is Siwen Liu's specialty?
- Medicare lists General Surgery as the primary specialty.
- Does Siwen Liu accept Medicare assignment?
- Yes. Medicare's clinician data says Siwen Liu 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 Siwen Liu?
- (715) 684-1555, as listed in official Medicare / NPI Registry data.
- What is Siwen Liu's NPI number?
- 1972037158. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Siwen Liu works
Medicare's Facility Affiliation Data lists Siwen Liu at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Western Wisconsin HealthBaldwin, WI · Critical Access Hospital · CCN 521347
Practice locations
Addresses where Siwen Liu is enrolled with Medicare (CMS data updated 2026-10-02).
- 1100 Bergslien StBaldwin, WI 54002 (715) 684‑1555
Group practices
Medicare enrollment lists Siwen Liu as a member of this group (CMS data updated 2026-10-02).
- Baldwin Area Medical Center Inc89 clinicians in the group
Specialties
- General Surgeryprimary
Other general surgeons in Wisconsin
Clinicians with the same Medicare primary specialty in Wisconsin — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Graduation year | 2017 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1972037158 |
| 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