Quick answers
- Does Leslie C. Tregillus accept Medicare assignment?
- Yes. Medicare's clinician data says Leslie C. Tregillus 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 Leslie C. Tregillus's NPI number?
- 1477638716. 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 Leslie C. Tregillus is enrolled with Medicare (CMS data updated October 2, 2026).
- 1003 Koala DrOmak, WA 98841 (509) 422‑5700
- 525 W JayBrewster, WA 98812 (509) 422‑8632
Group practices
Medicare enrollment lists Leslie C. Tregillus as a member of this group (CMS data updated October 2, 2026).
- Family Health Centers31 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Omak
Clinicians with the same Medicare primary specialty in Omak, WA — not a recommendation.
Other clinicians in Family Health Centers
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Washington School Of Medicine |
| Graduation year | 1984 (42 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1477638716 |
| 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