Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Clarkson Optometry Illinois PC

Q: What type of organization is Clarkson Optometry Illinois PC?

Clarkson Optometry Illinois PC is registered in NPPES as a Optometrist (its primary provider taxonomy).

Optometrist in Granite City, IL · enumerated 2011 · authorized official James Wachter, Cmo.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1558640250

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)

Legal business name Clarkson Optometry Illinois PC

Other name <Unavail>

Practice address 3405 Nameoki Rd, Ste A, Granite City, IL, 62040

Phone (636) 200-4393

Fax (618) 219-8910

Enumeration date Aug 11, 2011

Last updated in NPPES Apr 26, 2022

Taxonomy & classification

152W00000X Optometrist Eye and Vision Services Providers Primary

Authorized official

Name James Wachter

Title Cmo

Phone (636) 200-4393

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

What type of organization is Clarkson Optometry Illinois PC?

Clarkson Optometry Illinois PC is registered in NPPES as a Optometrist (its primary provider taxonomy).

Providers at this address

Browse all →

3f Vision LLC Optometrist · Granite City, IL NPI 1275821126

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-04-26.