Clarkson Optometry Illinois
Clarkson Optometry Illinois holds 17 active organization NPIs in the federal registry, with practice locations in 16 cities in 2 states. 16 list optometrist as their primary taxonomy; each location can bill under its own NPI.
Search the organization with your city to find the NPI for the location you visit or bill.
Find a location's NPIGranite City, IL has the most NPIs, 2
Source: CMS NPPES monthly file of Aug 9, 2026, organization NPIs by practice city.
Most NPIs were issued in 2007 and 2011
Source: CMS NPPES, enumeration dates.
9 NPIs were issued in 2007 alone, more than in any other year; none in 3 of the years between.
Granite City, IL locations
The city with the most Clarkson Optometry Illinois NPIs. The full list of all 17 follows.
| NPI | Location | Primary taxonomy | Issued |
|---|---|---|---|
| 1497807267 | 2421 CORPORATE CTR STE 102, Granite City, IL | Durable Medical Equipment & Medical Supplies | Jan 18, 2007 |
| 1558640250 | 3405 NAMEOKI RD STE A, Granite City, IL | Optometrist | Aug 11, 2011 |
All 17 locations, by state and city
| NPI | Location | Primary taxonomy | Issued |
|---|---|---|---|
| 1326474198 | 1819 HOMER ADAMS PARKWAY SUITE B, Alton, IL | Optometrist | Sep 24, 2013 |
| 1124214051 | 2525 GREEN MOUNT CROSSING DR. SUITE 290, Belleville, IL | Optometrist | Sep 25, 2007 |
| 1063606978 | 103 CLINTONIAN PLAZA, Breese, IL | Optometrist | Sep 4, 2007 |
| 1730373648 | 408 W 2ND ST, Centralia, IL | Optometrist | Sep 4, 2007 |
| 1508083502 | 1025 COLUMBIA CTR, Columbia, IL | Optometrist | Apr 19, 2007 |
| 1669668836 | 6663 EDWARDSVILLE CROSSING DR, Edwardsville, IL | Optometrist | Sep 20, 2007 |
| 1831425768 | 18 GINGER CRK, Glen Carbon, IL | Optometrist | Oct 28, 2009 |
| 1851679625 | 1310 DADRIAN PROFESSIONAL PARK, Godfrey, IL | Optometrist | Jul 28, 2011 |
| 1497807267 | 2421 CORPORATE CTR STE 102, Granite City, IL | Durable Medical Equipment & Medical Supplies | Jan 18, 2007 |
| 1558640250 | 3405 NAMEOKI RD STE A, Granite City, IL | Optometrist | Aug 11, 2011 |
| 1982898375 | 3000 BROADWAY ST, Mount Vernon, IL | Optometrist | Aug 29, 2007 |
| 1952595878 | 210 S MAIN, Red Bud, IL | Optometrist | Sep 4, 2007 |
| 1457303125 | 3248 GREEN MOUNT CROSSING DR, Shiloh, IL | Optometrist | May 17, 2006 |
| 1578806378 | 208 WEST MAIN, Staunton, IL | Optometrist | Mar 29, 2013 |
| 1548664634 | 2645 N ILLINOIS ST, Swansea, IL | Optometrist | Oct 17, 2014 |
| 1649464553 | 204 BRADFORD LANE, Waterloo, IL | Optometrist | Sep 4, 2007 |
| 1548635758 | 15933 CLAYTON RD STE 201, Ballwin, MO | Optometrist | Dec 14, 2015 |
Checking an organization
- Match the NPI to the exact location you will visit or bill; each location can have its own.
- Confirm the business entity with the secretary of state.
- Check the HHS-OIG exclusion list for the organization and its owners.
- Verify each clinician you will see on their own record and with the state license search.
Common questions
Why does Clarkson Optometry Illinois have 17 NPIs?
An organization may obtain more than one Type 2 NPI, for example for separate locations or units that bill on their own. Clarkson Optometry Illinois's NPIs list practice locations in 16 cities.
Is an organization NPI a license?
No. An NPI identifies who bills. Facilities and the clinicians who work there are licensed separately by the state.
Source: CMS National Plan and Provider Enumeration System (NPPES), monthly file of Aug 9, 2026 (NPPES files on CMS.gov). An NPI identifies who bills; it is not a license.