Quick answers
- Does Jean L. Westendorf accept Medicare assignment?
- Yes. Medicare's clinician data says Jean L. Westendorf accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- What is Jean L. Westendorf's NPI number?
- 1083609929. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Jean L. Westendorf is enrolled with Medicare (CMS data updated October 2, 2026).
- 621 S Illinois Ave, 100 Mercyone Regency Family MedicineMason City, IA 50401 (641) 428‑6900
Group practices
Medicare enrollment lists Jean L. Westendorf as a member of this group (CMS data updated October 2, 2026).
- North Iowa Mercy Clinics302 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Mason City
Clinicians with the same Medicare primary specialty in Mason City, IA — not a recommendation.
Other clinicians in North Iowa Mercy Clinics
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Graduation year | 1973 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1083609929 |
| 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
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- 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