LESLIE C TREGILLUS MD
NPI 1477638716
Family Medicine in Omak, WA
About Leslie C Tregillus Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
LESLIE C TREGILLUS MD (NPI 1477638716) is an individual family medicine provider in Omak, Washington, licensed in Washington (MD00023288) and active in the NPI registry since October 2006. She is enrolled in Medicare PECOS and is a graduate of University Of Washington School Of Medicine (1984).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Leslie C Tregillus Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Leslie Tregillus reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Okanogan, WA 98840
- Reassigned Medicare billing, Washington enrollment
- 46 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 98841 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 19
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Leslie Tregillus's NPI number?
The NPI number for Leslie Tregillus is 1477638716. It was assigned to this individual provider in the NPPES registry on October 26, 2006.
Where is Leslie Tregillus located?
Leslie Tregillus practices at 1003 Koala Dr, Omak, WA 98841. The listed phone number is (509) 422-5700.
What is Leslie Tregillus's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Leslie Tregillus enrolled in Medicare?
Yes. Leslie Tregillus is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Leslie Tregillus's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Leslie Tregillus reassigns Medicare benefits to Family Health Centers (Okanogan, WA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Leslie Tregillus's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Leslie Tregillus accept?
Health plans from Ambetter Health, Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Leslie Tregillus as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Leslie Tregillus was last updated on May 23, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Leslie C Tregillus, MD · NPI 1477638716
Family Medicine physician in Omak, Washington. Individual provider, active in the CMS NPPES registry since October 26, 2006.
## Identity
- **NPI:** 1477638716 (Entity type: Individual)
- **Enumerated:** October 26, 2006
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** MD00023288 (Washington)
- **Sole proprietor:** No
## Practice location
- **Address:** 1003 KOALA DR, Omak, WA 98841-9247
- **Phone:** (509) 422-5700 · **Fax:** (855) 204-8902
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Family Health Centers (NPI 1609804392, Okanogan, WA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Washington School Of Medicine, class of 1984
## Record status
- **NPPES last updated:** May 23, 2022
- **Other identifiers:** Medicaid 1030857 (WA)
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Source: [NPI Profile](https://npiprofile.com/npi/1477638716) · Data from the CMS NPPES public registry.