WILLIAMSON EYE CENTER
NPI 1972509156
Ophthalmology in Zachary, LA
About Williamson Eye Center NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WILLIAMSON EYE CENTER (NPI 1972509156) is a healthcare organization registered as an ophthalmology in Zachary, Louisiana and active in the NPI registry since June 2005. The organization holds a CLIA Waiver certificate valid through January 3, 2028 and lists Charles Hamilton Williamson, Md, Medical Director, Owner, as its authorized official.
NPPES Registry Identity
Specialties & Licenses 5
Other Identifiers 3
Group Practice 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Williamson Eye Center is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
28Medicare enrollment records show 28 clinicians reassign Medicare billing to Williamson Eye Center, which bills Medicare for the services they deliver. Of these, 1 practice at this address. Listed here are the 20 practicing nearest to this location.
Clinicians by Medicare Specialty 2
Nearest to this location (20)
See all 28Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
CLIA Laboratory Certificates CMS CLIA
Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.
Certificate of Waiver 19D2106957
Williamson Eye Center · Zachary, LAFrequently 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 Williamson Eye Center's NPI number?
The NPI number for Williamson Eye Center is 1972509156. It was assigned to this organization in the NPPES registry on June 22, 2005.
Where is Williamson Eye Center located?
Williamson Eye Center is located at 5233 Main St Ste A, Zachary, LA 70791. The listed phone number is (225) 654-0090.
What is Williamson Eye Center's specialty?
The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.
Is Williamson Eye Center enrolled in Medicare?
Yes. Williamson Eye Center is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Williamson Eye Center?
According to the CMS Revalidation Reassignment List (October 2026 release), 28 clinicians in 2 Medicare specialties reassign their Medicare billing to Williamson Eye Center. A 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 the clinician's services. The largest specialties are Optometry (19) and Ophthalmology (9). Of these, 1 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Does Williamson Eye Center hold a CLIA laboratory certificate?
Yes. A Certificate of Waiver (number 19D2106957) is associated with this NPI, valid through January 3, 2028. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.
What insurance does Williamson Eye Center accept?
Health plans from AmeriHealth Caritas Next, Blue Cross Blue Shield of Wyoming, Blue Cross and Blue Shield of Louisiana and HMO Louisiana list Williamson Eye Center 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 Williamson Eye Center was last updated on August 12, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.
# Williamson Eye Center · NPI 1972509156
Ophthalmology organization in Zachary, Louisiana. Organization record, active in the CMS NPPES registry since June 22, 2005.
## Identity
- **NPI:** 1972509156 (Entity type: Organization)
- **Enumerated:** June 22, 2005
- **Primary specialty:** Ophthalmology · taxonomy 207W00000X
- **Organization subpart:** No
- **Authorized official:** Charles Williamson, MD, MEDICAL DIRECTOR, OWNER
## Practice location
- **Address:** 5233 MAIN ST, STE A, Zachary, LA 70791-3978
- **Phone:** (225) 654-0090 · **Fax:** (225) 654-8044
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 28 clinicians in 2 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Optometry (19), Ophthalmology (9); 1 practice at this address; [full list](https://npiprofile.com/npi/1972509156/clinicians) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** August 12, 2010
- **Other identifiers:** Medicare ID-Type Unspecified 5D241 (LA); Medicaid 1797359 (LA); Medicare NSC 6386570003 (LA)
- **CLIA laboratory certificates:** 1 on file
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Source: [NPI Profile](https://npiprofile.com/npi/1972509156) · Data from the CMS NPPES public registry.