DR. WILLIAM RAY LOSIE O.D.
NPI 1104952910
Optometrist in Eugene, OR
About Dr. William Ray Losie O.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. WILLIAM RAY LOSIE O.D. (NPI 1104952910) is an individual optometrist in Eugene, Oregon, licensed in Oregon (1709ATI) and active in the NPI registry since February 2007. He is enrolled in Medicare PECOS and is a graduate of Southern California College Of Optometry (1984).
NPPES Registry Identity
Specialties & Licenses 7
Other Identifiers 5
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
Dr. William Ray Losie O.d. 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 William Losie reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Eugene, OR 97402
- Reassigned Medicare billing, Oregon enrollment
- Medicare enrollment name: William R Losie Od PC
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 2
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 97402 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 William Losie's NPI number?
The NPI number for William Losie is 1104952910. It was assigned to this individual provider in the NPPES registry on February 26, 2007.
Where is William Losie located?
William Losie practices at 1680 Chambers St Ste 101, Eugene, OR 97402. The listed phone number is (541) 686-1117.
What is William Losie's specialty?
The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.
Is William Losie enrolled in Medicare?
Yes. William Losie 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 William Losie's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William Losie reassigns Medicare benefits to William R. Losie O.D. P.C. (Eugene, OR). 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 William Losie's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does William Losie accept?
Health plans from Anthem Blue Cross and Blue Shield, BlueCross BlueShield of Tennessee, BridgeSpan Health Company, Moda Health Plan, Inc. and PacificSource Health Plans and 2 other insurers list William Losie 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 William Losie was last updated on January 7, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.
# Dr. William Ray Losie, O.D. · NPI 1104952910
Optometrist provider in Eugene, Oregon. Individual provider, active in the CMS NPPES registry since February 26, 2007.
## Identity
- **NPI:** 1104952910 (Entity type: Individual)
- **Enumerated:** February 26, 2007
- **Primary specialty:** Optometrist · taxonomy 152W00000X
- **State license:** 1709ATI (Oregon)
- **Sole proprietor:** No
## Practice location
- **Address:** 1680 CHAMBERS ST STE 101, Eugene, OR 97402-3655
- **Phone:** (541) 686-1117 · **Fax:** (541) 687-2158
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health
- **Bills Medicare through:** William R. Losie O.D. P.C. (NPI 1275800559, Eugene, OR), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Southern California College Of Optometry, class of 1984
## Record status
- **NPPES last updated:** January 7, 2008
- **Other identifiers:** Medicare ID-Type Unspecified 109620 (OR); Medicaid 108225 (OR); Medicare NSC 4187070001 (OR); and 2 more
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Source: [NPI Profile](https://npiprofile.com/npi/1104952910) · Data from the CMS NPPES public registry.