WILLCOCKSON EYE ASSOCIATES, P.C.
NPI 1992802920
Ophthalmology in Yankton, SD

NPI Status: Active since September 20, 2006

Contact Information

415 W 3RD ST
YANKTON, SD
ZIP 57078
Phone: (605) 665-9638
Fax: (605) 665-0526

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  • Organization
  • Ophthalmology
  • Accepts Insurance
  • CLIA Number: 43D2111326
  • CLIA Cert. Type: Physician Office
  • CLIA Exp. Date: 04-04-2026

About WILLCOCKSON EYE ASSOCIATES, P.C.

This page provides the complete NPI Profile along with additional information for Willcockson Eye Associates, P.c., a provider established in Yankton, South Dakota operating as a Ophthalmology. The healthcare provider is registered in the NPI registry with number 1992802920 assigned on September 2006. The practitioner's primary taxonomy code is 207W00000X with license number 0017 (SD). The provider is registered as an organization and their NPI record was last updated 15 years ago. Willcockson Eye Associates, P.c. operates as a Multi-Specialty Group with one or more individual practitioners, who practice different areas of specialization. The authorized official of this NPI record is Mr. Lee Alan Gass (Administrator)

NPI
1992802920
Provider Name
WILLCOCKSON EYE ASSOCIATES, P.C.
Entity Type
Organization
Location Address
415 W 3RD ST YANKTON, SD 57078
Location Phone
(605) 665-9638
Location Fax
(605) 665-0526
Mailing Address
415 W 3RD ST YANKTON, SD 57078
Mailing Phone
(605) 665-9638
Mailing Fax
(605) 665-0526
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
09-20-2006
Last Update Date
08-02-2011
Code Navigator

Ophthalmologists like Willcockson Eye Associates, P.c. specialize in diagnosing and treating eye conditions. They may perform surgeries to correct vision issues or prevent vision loss due to diseases like glaucoma. Additionally, they can provide eyeglasses, prescribe contact lenses, and offer other vision-related services.

Location Map

Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Ophthalmology

Taxonomy Code
207W00000X
Type
Allopathic & Osteopathic Physicians
License No.
0017
License State
SD
Taxonomy Description
An ophthalmologist has the knowledge and professional skills needed to provide comprehensive eye and vision care. Ophthalmologists are medically trained to diagnose, monitor and medically or surgically treat all ocular and visual disorders. This includes problems affecting the eye and its component structures, the eyelids, the orbit and the visual pathways. In so doing, an ophthalmologist prescribes vision services, including glasses and contact lenses.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1152W00000XEye and Vision Services Providers

Optometrist

(SD)
2332H00000XSuppliers

Eyewear Supplier

 

Group Taxonomy 193200000X MULTI-SPECIALTY GROUP

This provider is a business group of one or more individual practitioners, who practice with different areas of specialization.

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

  • Complete Gold - EPO
  • Complete Gold + Vision + Adult Dental - EPO
  • Complete Silver - EPO
  • Complete Silver + Vision + Adult Dental - EPO
  • Elite Bronze - EPO
  • Elite Bronze + Vision + Adult Dental - EPO
  • Everyday Bronze - EPO
  • Everyday Bronze + Vision + Adult Dental - EPO
  • Everyday Gold - EPO
  • Everyday Gold + Vision + Adult Dental - EPO
  • Standard Expanded Bronze - EPO
  • Standard Expanded Bronze + Vision + Adult Dental - EPO
  • Standard Gold - EPO
  • Standard Gold + Vision + Adult Dental - EPO
  • Standard Silver - EPO
  • Standard Silver + Vision + Adult Dental - EPO
  • Elite Bronze - EPO
  • Elite Bronze + Vision + Adult Dental - EPO
  • Elite Gold - EPO
  • Elite Gold + Vision + Adult Dental - EPO
  • Everyday Bronze - EPO
  • Everyday Bronze + Vision + Adult Dental - EPO
  • Everyday Gold - EPO
  • Everyday Gold + Vision + Adult Dental - EPO
  • Focused Silver - EPO
  • Focused Silver + Vision + Adult Dental - EPO
  • Standard Expanded Bronze - EPO
  • Standard Expanded Bronze + Vision + Adult Dental - EPO
  • Standard Gold - EPO
  • Standard Gold + Vision + Adult Dental - EPO
  • Standard Silver - EPO
  • Standard Silver + Vision + Adult Dental - EPO
  • Choice Bronze HSA - EPO
  • Choice Bronze HSA + Vision + Adult Dental - EPO
  • Clear Gold - EPO
  • Clear Gold + Vision + Adult Dental - EPO
  • Complete Gold - HMO
  • Complete Gold + Vision + Adult Dental - HMO
  • Elite Bronze - EPO
  • Elite Bronze - HMO
  • Elite Bronze + Vision + Adult Dental - EPO
  • Elite Bronze + Vision + Adult Dental - HMO
  • Elite Gold - EPO
  • Elite Gold + Vision + Adult Dental - EPO
  • Everyday Bronze - HMO
  • Everyday Bronze + Vision + Adult Dental - HMO
  • Everyday Gold - HMO
  • Everyday Gold + Vision + Adult Dental - HMO
  • Focused Silver - EPO
  • Focused Silver - HMO
  • Focused Silver + Vision + Adult Dental - EPO
  • Focused Silver + Vision + Adult Dental - HMO
  • Clear Gold - EPO
  • Clear Gold + Vision + Adult Dental - EPO
  • Complete Gold - EPO
  • Complete Gold + Vision + Adult Dental - EPO
  • Elite Silver - EPO
  • Elite Silver + Vision + Adult Dental - EPO
  • Everyday Bronze - EPO
  • Everyday Bronze + Vision + Adult Dental - EPO
  • Focused Silver - EPO
  • Focused Silver + Vision + Adult Dental - EPO
  • Principal Bronze HSA - EPO
  • Principal Bronze HSA + Vision + Adult Dental - EPO
  • Standard Expanded Bronze - EPO
  • Standard Expanded Bronze + Vision + Adult Dental - EPO
  • Standard Gold - EPO
  • Standard Gold + Vision + Adult Dental - EPO
  • Standard Silver - EPO
  • ConnectPlus $0 Gold - PPO
  • ConnectPlus $0 Silver - PPO
  • ConnectPlus $10,600 HSA Eligible HDHP - PPO
  • ConnectPlus $1800 - PPO
  • ConnectPlus $4500 - PPO
  • ConnectPlus $6500 HSA Eligible HDHP - PPO
  • ConnectPlus $7500 HSA Eligible HDHP - PPO
  • ConnectPlus MyWeighForward $2000 - PPO
  • ConnectPlus MyWeighForward $6000 - PPO
  • ConnectPlus Standard $2000 - PPO
  • ConnectPlus Standard $6000 - PPO
  • ConnectPlus Standard $7500 HSA Eligible HDHP - PPO
  • DirectConnect $0 Gold - HMO
  • DirectConnect $0 Silver - HMO
  • DirectConnect $1800 - HMO
  • DirectConnect $4500 - HMO
  • DirectConnect $6500 HSA Eligible HDHP - HMO
  • DirectConnect $7500 HSA Eligible HDHP - HMO
  • DirectConnect MyWeighForward $2000 - HMO
  • DirectConnect MyWeighForward $6000 - HMO
  • HeartlandBlue Bronze 0% Coinsurance after Deductible NEtwork Blue - EPO
  • HeartlandBlue Bronze 0% Coinsurance after Deductible NEtwork Blue PPO - PPO
  • HeartlandBlue Bronze HSA 6500 NEtwork Blue - EPO
  • HeartlandBlue Bronze HSA 6500 NEtwork Blue PPO - PPO
  • HeartlandBlue Bronze Standard 7500 NEtwork Blue - EPO
  • HeartlandBlue Bronze Standard 7500 NEtwork Blue PPO - PPO
  • HeartlandBlue Gold $0 PCP Visit 1500 NEtwork Blue - EPO
  • HeartlandBlue Gold $0 PCP Visit 1500 NEtwork Blue PPO - PPO
  • HeartlandBlue Gold 1000 NEtwork Blue w/ Adult Vision - EPO
  • HeartlandBlue Gold 1000 NEtwork Blue w/ Adult Vision PPO - PPO
  • HeartlandBlue Gold Standard 2000 NEtwork Blue - EPO
  • HeartlandBlue Gold Standard 2000 NEtwork Blue PPO - PPO
  • HeartlandBlue Silver $0 PCP Visit 4500 NEtwork Blue - EPO
  • HeartlandBlue Silver $0 PCP Visit 4500 NEtwork Blue PPO - PPO
  • HeartlandBlue Silver HSA 5500 NEtwork Blue w/ Adult Vision - EPO
  • HeartlandBlue Silver HSA 5500 NEtwork Blue w/ Adult Vision PPO - PPO
  • HeartlandBlue Silver Standard 6000 NEtwork Blue - EPO
  • HeartlandBlue Silver Standard 6000 NEtwork Blue PPO - PPO
  • Sanford Individual Simplicity $1,750 - PPO
  • Sanford Individual Simplicity $10,600 - PPO
  • Sanford Individual Simplicity $3,500 - PPO
  • Sanford Individual Simplicity $4,750 - PPO
  • Sanford Individual Simplicity $6,500 - PPO
  • Sanford Individual Simplicity $7,200 HSA Qualified - PPO
  • Sanford Individual Simplicity Standardized $2,000 - PPO
  • Sanford Individual Simplicity Standardized $6,000 - PPO
  • Sanford Individual Simplicity Standardized $7,500 - PPO

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Authorized Official

The authorized official is the designated individual with the legal authority to make changes to the provider’s official NPI record. For organizations, the authorized official must be a general partner, chairman of the board, CEO, CFO or a direct owner holding at least a 5 percent stake in the medical organization.

Authorized Official Name

MR. LEE ALAN GASS

Authorized Official Title
ADMINISTRATOR
Authorized Official Phone
(605) 665-9638

Additional Identifiers

The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.

Identifier Type / Code Identifier State Identifier Issuer
0000121OTHER (01)SDSD BLUE SHIELD
0374880001MEDICARE NSC (07) 
NA1115MEDICARE PIN (08)NE 
S121MEDICARE ID-TYPE UNSPECIFIED (04)SDSD MEDICARE
CN6245MEDICARE ID-TYPE UNSPECIFIED (04)NENE RAILROAD MEDICARE
NA1114MEDICARE PIN (08)NE 
CP7721MEDICARE ID-TYPE UNSPECIFIED (04)SDSD RAILROAD MEDICARE

CLIA Information

The Clinical Laboratory Improvement Amendments (CLIA) of 1988 applies to facilities or sites that test human specimens for health assessment or to diagnose, prevent, or treat disease. The CLIA Program sets standards for clinical laboratory testing and issues certificates. The NPI / CLIA crosswalk information for this NPI number is:

CLIA Number
43D2111326
Facility Type
Physician Office
Certificate Effective Date
April 05, 2024
Certificate Expiration Date
April 04, 2026
Laboratory Director
HAILEY SCHELLING
Certificate Type
Certificate of Waiver
Certificate Type Description
This CLIA certificate is issued to Willcockson Eye Associates, P.c. to perform only waived tests. CLIA defines waived tests as simple tests with a low risk for an incorrect result. Waived tests include certain tests listed in CLIA regulations, tests cleared by the FDA for home use and tests approved by the FDA for waived status and that meet CLIA waiver criteria.

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NPI NPI Number Validation

How NPI Validation Works

The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.

To verify the NPI 1992802920, we treat the final digit (0) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 70. The final step is to find the difference between that total and the next multiple of ten (70 - 70 = 0).

Digit-by-digit view

Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.

Pos 1
1
Doubled → 2
Pos 2
9
Unchanged
Pos 3
9
Doubled → 18 → 1 + 8
Pos 4
2
Unchanged
Pos 5
8
Doubled → 16 → 1 + 6
Pos 6
0
Unchanged
Pos 7
2
Doubled → 4
Pos 8
9
Unchanged
Pos 9
2
Doubled → 4
Check
0
Target digit
Regular digit Doubled digit Check digit

Step 1: Double every other digit from the right

Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.

1 → 2 9 → 18 → 9 8 → 16 → 7 2 → 4 2 → 4

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 9 + 1 + 8 + 2 + 1 + 6 + 0 + 4 + 9 + 4 + 24 = 70

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 70 is 70. The difference is the calculated check digit.

70 - 70 = 0
This NPI is valid
The calculated check digit is 0, which matches the last digit of 1992802920.

Other Providers at the Same Location


The following 8 providers are registered at the same or a nearby location.

Ophthalmology
415 W 3RD ST
YANKTON, SD 57078
Ophthalmology
415 W 3RD ST
YANKTON, SD 57078
Optometrist
415 W 3RD ST
YANKTON, SD 57078
Ophthalmology
415 W 3RD ST
YANKTON, SD 57078
Ophthalmology
415 W 3RD ST
YANKTON, SD 57078
Eyewear Supplier
415 W 3RD ST
YANKTON, SD 57078
Optometrist
415 W 3RD ST
YANKTON, SD 57078
Ophthalmology
415 W 3RD ST
YANKTON, SD 57078

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1992802920, enumerated as an "organization" on September 20, 2006.

The provider is located at 415 W 3RD ST YANKTON, SD 57078 and the phone number is (605) 665-9638.

Ophthalmology with taxonomy code 207W00000X.

The provider might be accepting Accepts: Ambetter from Home State Health, Ambetter from. Please consult your insurance carrier or call the provider to verify.