Quick answers
- Which hospitals does Walter L. Sia Su work at?
- Medicare's official clinician data lists Walter L. Sia Su at 5 hospitals: CentraCare - St. Cloud Hospital, CentraCare Health - Monticello, Centracare- Rice Memorial Hospital, North Memorial Health Hospital and St Gabriels Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Walter L. Sia Su see patients?
- Medicare's clinician data lists 8 practice locations, including Saint Cloud, MN, St Cloud, MN and Chicago, IL. Call before your visit to confirm the address.
- What is Walter L. Sia Su's specialty?
- Medicare lists Internal Medicine as the primary specialty, and also Hospitalist.
- Does Walter L. Sia Su accept Medicare assignment?
- Yes. Medicare's clinician data says Walter L. Sia Su 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 Walter L. Sia Su?
- (320) 252-5131, as listed in official Medicare / NPI Registry data.
- What is Walter L. Sia Su's NPI number?
- 1477542371. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Walter L. Sia Su works
Medicare's Facility Affiliation Data lists Walter L. Sia Su at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- CentraCare - St. Cloud HospitalSaint Cloud, MN · Acute Care Hospital · CCN 240036
- CentraCare Health - MonticelloMonticello, MN · Critical Access Hospital · CCN 241362
- Centracare- Rice Memorial HospitalWillmar, MN · Acute Care Hospital · CCN 240088
- North Memorial Health HospitalRobbinsdale, MN · Acute Care Hospital · CCN 240001
- St Gabriels HospitalLittle Falls, MN · Critical Access Hospital · CCN 241370
Practice locations
Addresses where Walter L. Sia Su is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 8; the Medicare profile lists all.
- 1200 6th Ave NSaint Cloud, MN 56303
- 1200 6th Ave NSt Cloud, MN 56303 (320) 252‑5131
- 1200 6th Ave N, Centracare Clic River CampusSaint Cloud, MN 56303 (320) 252‑5131
- 1200 6th N AveSaint Cloud, MN 56303 (320) 252‑5131
- 1406 6th Ave NSt Cloud, MN 56303
Group practices
Medicare enrollment lists Walter L. Sia Su as a member of this group (CMS data updated 2026-10-02).
- CentraCare Clinic791 clinicians in the group
Specialties
- Internal Medicineprimary
- Hospitalistalso
Other internal medicine doctors in Saint Cloud
Clinicians with the same Medicare primary specialty in Saint Cloud, MN — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1990 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1477542371 |
| 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