Quick answers
- Which hospitals does Louise E. Ou-Yang work at?
- Medicare's official clinician data lists Louise E. Ou-Yang at 1 hospital: Ridgeview Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Louise E. Ou-Yang see patients?
- Medicare's clinician data lists 1 practice location in Waconia, MN. Call before your visit to confirm the address.
- What is Louise E. Ou-Yang's specialty?
- Medicare lists Obstetrics/Gynecology as the primary specialty.
- Does Louise E. Ou-Yang accept Medicare assignment?
- Yes. Medicare's clinician data says Louise E. Ou-Yang 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 Louise E. Ou-Yang?
- (952) 442-3188, as listed in official Medicare / NPI Registry data.
- What is Louise E. Ou-Yang's NPI number?
- 1528009032. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Louise E. Ou-Yang works
Medicare's Facility Affiliation Data lists Louise E. Ou-Yang at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Ridgeview Medical CenterWaconia, MN · Acute Care Hospital · CCN 240056
Practice locations
Addresses where Louise E. Ou-Yang is enrolled with Medicare (CMS data updated 2026-10-02).
- 560 S Maple St, Suite 400Waconia, MN 55387 (952) 442‑3188
Group practices
Medicare enrollment lists Louise E. Ou-Yang as a member of this group (CMS data updated 2026-10-02).
- Ridgeview Medical Center412 clinicians in the group
Specialties
- Obstetrics/Gynecologyprimary
Other OB-GYNs in Waconia
Clinicians with the same Medicare primary specialty in Waconia, MN — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2002 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1528009032 |
| 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