Quick answers
- Which hospitals does Ellen L. Knipfer work at?
- Medicare's official clinician data lists Ellen L. Knipfer at 1 hospital: Door County Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Ellen L. Knipfer see patients?
- Medicare's clinician data lists 2 practice locations, including Sturgeon Bay, WI and Algoma, WI. Call before your visit to confirm the address.
- What is Ellen L. Knipfer's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Ellen L. Knipfer accept Medicare assignment?
- Yes. Medicare's clinician data says Ellen L. Knipfer 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 Ellen L. Knipfer?
- (920) 743-5566, as listed in official Medicare / NPI Registry data.
- What is Ellen L. Knipfer's NPI number?
- 1144629114. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Ellen L. Knipfer works
Medicare's Facility Affiliation Data lists Ellen L. Knipfer at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Door County Medical CenterSturgeon Bay, WI · Critical Access Hospital · CCN 521358
Practice locations
Addresses where Ellen L. Knipfer is enrolled with Medicare (CMS data updated 2026-10-02).
- 323 S 18th AveSturgeon Bay, WI 54235 (920) 743‑5566
- 815 Jefferson StAlgoma, WI 54201 (920) 487‑3496
Group practices
Medicare enrollment lists Ellen L. Knipfer as a member of this group (CMS data updated 2026-10-02).
- Door County Memorial Hospital93 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Sturgeon Bay
Clinicians with the same Medicare primary specialty in Sturgeon Bay, WI — not a recommendation.
Clinician information
| Graduation year | 2014 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1144629114 |
| 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