Quick answers
- Which hospitals does William J. Knoer work at?
- Medicare's official clinician data lists William J. Knoer at 1 hospital: Lakes Regional Healthcare. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does William J. Knoer see patients?
- Medicare's clinician data lists 2 practice locations, including Spirit Lake, IA. Call before your visit to confirm the address.
- What is William J. Knoer's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does William J. Knoer accept Medicare assignment?
- Yes. Medicare's clinician data says William J. Knoer 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 William J. Knoer?
- (712) 336-3750, as listed in official Medicare / NPI Registry data.
- What is William J. Knoer's NPI number?
- 1033731187. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where William J. Knoer works
Medicare's Facility Affiliation Data lists William J. Knoer at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Lakes Regional HealthcareSpirit Lake, IA · Acute Care Hospital · CCN 160124
Practice locations
Addresses where William J. Knoer is enrolled with Medicare (CMS data updated 2026-10-02).
- 2301 Hwy 71Spirit Lake, IA 51360
- 2301 Hwy 71, Suite CSpirit Lake, IA 51360 (712) 336‑3750
Group practices
Medicare enrollment lists William J. Knoer as a member of this group (CMS data updated 2026-10-02).
- Lakes Regional Healthcare38 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Spirit Lake
Clinicians with the same Medicare primary specialty in Spirit Lake, IA — not a recommendation.
Clinician information
| Graduation year | 2018 |
|---|---|
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1033731187 |
| 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