Quick answers
- Does Natalie M. Claassen accept Medicare assignment?
- Yes. Medicare's clinician data says Natalie M. Claassen 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 Natalie M. Claassen's NPI number?
- 1144068099. 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 Natalie M. Claassen is enrolled with Medicare (CMS data updated October 2, 2026).
- 1840 E Broadway RdTempe, AZ 85282 (602) 243‑7277
- 635 E Baseline RdPhoenix, AZ 85042 (602) 243‑7277
Group practices
Medicare enrollment lists Natalie M. Claassen as a member of this group (CMS data updated October 2, 2026).
- Mountain Park Health Center111 clinicians in the group
Specialties
Find other clinicians: Registered Dietitian or Nutrition Professional, Arizona →
Other dietitians in Tempe
Clinicians with the same Medicare primary specialty in Tempe, AZ — not a recommendation.
Other clinicians in Mountain Park Health Center
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Graduation year | 2022 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1144068099 |
| 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