WILLCOCKSON EYE ASSOCIATES, P.C.
NPI 1992802920
Ophthalmology in Yankton, SD
About Willcockson Eye Associates, P.c. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WILLCOCKSON EYE ASSOCIATES, P.C. (NPI 1992802920) is a healthcare organization registered as an ophthalmology in Yankton, South Dakota and active in the NPI registry since September 2006. The organization lists Lee Alan Gass, Administrator, as its authorized official.
NPPES Registry Identity
Specialties & Licenses 3
Other Identifiers 7
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)
Willcockson Eye Associates, P.c. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
3Medicare enrollment records show 3 clinicians reassign Medicare billing to Willcockson Eye Associates, P.C., which bills Medicare for the services they deliver. Of these, 1 practice at this address and 3 within 10 miles. They are listed nearest first.
Clinicians, nearest first (3)
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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 Willcockson Eye Associates, P.C.'s NPI number?
The NPI number for Willcockson Eye Associates, P.C. is 1992802920. It was assigned to this organization in the NPPES registry on September 20, 2006.
Where is Willcockson Eye Associates, P.C. located?
Willcockson Eye Associates, P.C. is located at 415 W 3rd St, Yankton, SD 57078. The listed phone number is (605) 665-9638.
What is Willcockson Eye Associates, P.C.'s specialty?
The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.
Is Willcockson Eye Associates, P.C. enrolled in Medicare?
Yes. Willcockson Eye Associates, P.C. is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Willcockson Eye Associates, P.C.?
According to the CMS Revalidation Reassignment List (October 2026 release), 3 clinicians reassign their Medicare billing to Willcockson Eye Associates, P.C., in Ophthalmology and Optometry. 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. Of these, 1 practice at this address and 3 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
What insurance does Willcockson Eye Associates, P.C. accept?
Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Sunflower Health Plan, Avera Health Plans and Blue Cross and Blue Shield of Nebraska and 1 other insurer list Willcockson Eye Associates, P.C. 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 Willcockson Eye Associates, P.C. was last updated on August 2, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.
# Willcockson Eye Associates, P.c. · NPI 1992802920
Ophthalmology organization in Yankton, South Dakota. Organization record, active in the CMS NPPES registry since September 20, 2006.
## Identity
- **NPI:** 1992802920 (Entity type: Organization)
- **Enumerated:** September 20, 2006
- **Primary specialty:** Ophthalmology · taxonomy 207W00000X
- **Organization subpart:** No
- **Authorized official:** Lee Gass, ADMINISTRATOR
## Practice location
- **Address:** 415 W 3RD ST, Yankton, SD 57078-4201
- **Phone:** (605) 665-9638 · **Fax:** (605) 665-0526
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 3 clinicians in 2 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Optometry (2), Ophthalmology (1); 1 practice at this address and 3 within 10 miles · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** August 2, 2011
- **Other identifiers:** Other 0000121 (SD); Medicare NSC 0374880001; Medicare PIN NA1115 (NE); and 4 more
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Source: [NPI Profile](https://npiprofile.com/npi/1992802920) · Data from the CMS NPPES public registry.