WILLIAM FIX O.D.
NPI 1285621656
Optometrist in Marion, IL
About William Fix O.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WILLIAM FIX O.D. (NPI 1285621656) is an individual optometrist in Marion, Illinois, licensed in Illinois (046-007446) and active in the NPI registry since September 2005. He is enrolled in Medicare PECOS, maintains a secondary practice location in Eldorado, and is a graduate of Illinois College Of Optometry At Chicago (1981).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 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
William Fix 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 Fix reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Marion, IL 62959
- Reassigned Medicare billing, Illinois enrollment
- 33 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 62959 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Reported Quality Measures
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.
MARION, IL 62959
MARION, IL 62959
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 Fix's NPI number?
The NPI number for William Fix is 1285621656. It was assigned to this individual provider in the NPPES registry on September 30, 2005.
Where is William Fix located?
William Fix practices at 1200 W Deyoung St, Marion, IL 62959. The listed phone number is (618) 993-5686.
What is William Fix's specialty?
The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.
Is William Fix enrolled in Medicare?
Yes. William Fix 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 Fix's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William Fix reassigns Medicare benefits to Marion Eye Centers Ltd. (Marion, IL). 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 Fix's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does William Fix accept?
Health plans from Anthem Blue Cross and Blue Shield, Blue Cross Blue Shield of Wyoming, Blue Cross and Blue Shield of Louisiana, Blue Cross and Blue Shield of Montana and Blue Cross and Blue Shield of Oklahoma and 10 other insurers list William Fix 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 Fix was last updated on October 27, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 days 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.
# William Fix, O.D. · NPI 1285621656
Optometrist provider in Marion, Illinois. Individual provider, active in the CMS NPPES registry since September 30, 2005.
## Identity
- **NPI:** 1285621656 (Entity type: Individual)
- **Enumerated:** September 30, 2005
- **Primary specialty:** Optometrist · taxonomy 152W00000X
- **State license:** 046-007446 (Illinois)
- **Sole proprietor:** No
## Practice location
- **Address:** 1200 W DEYOUNG ST, Marion, IL 62959-4437
- **Phone:** (618) 993-5686
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health
- **Bills Medicare through:** Marion Eye Centers Ltd. (NPI 1508865643, Marion, IL), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Illinois College Of Optometry At Chicago, class of 1981
## Record status
- **NPPES last updated:** October 27, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1285621656) · Data from the CMS NPPES public registry.