Quick answers
- Does Dorothy F. Diaz accept Medicare assignment?
- Yes. Medicare's clinician data says Dorothy F. Diaz 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 Dorothy F. Diaz's NPI number?
- 1497130298. 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 Dorothy F. Diaz is enrolled with Medicare (CMS data updated October 2, 2026).
- 135 S 336th StFederal Way, WA 98003 (253) 835‑7453
Group practices
Medicare enrollment lists Dorothy F. Diaz as a member of these groups (CMS data updated October 2, 2026).
- Washington Pac Services PC44 clinicians in the group
- WA Pacs 2 PC27 clinicians in the group
- CS Pacs 3 Northwest LLC25 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Federal Way
Clinicians with the same Medicare primary specialty in Federal Way, WA — not a recommendation.
Other clinicians in Washington Pac Services PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 1981 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1497130298 |
| 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