Quick answers
- Does Wendy K. Thiessen accept Medicare assignment?
- Yes. Medicare's clinician data says Wendy K. Thiessen 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 Wendy K. Thiessen's NPI number?
- 1306827035. 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 Wendy K. Thiessen is enrolled with Medicare (CMS data updated October 2, 2026).
- 1215 Duff AveAmes, IA 50010 (515) 239‑4400
- 421 E Merle Hibbs BlvdMarshalltown, IA 50158 (641) 752‑0654
Group practices
Medicare enrollment lists Wendy K. Thiessen as a member of this group (CMS data updated October 2, 2026).
- McFarland Clinic PC363 clinicians in the group
Specialties
- Pediatric Medicineprimary
Other pediatricians in Ames
Clinicians with the same Medicare primary specialty in Ames, IA — not a recommendation.
Other clinicians in McFarland Clinic PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Iowa, Rj & L Carver College Of Medicine |
| Graduation year | 1999 (27 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1306827035 |
| 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