Registry data as of Aug 27, 2026

Gwa Optical

Gwa Optical holds 16 active organization NPIs in the federal registry, with practice locations in 11 Illinois cities. All list eyewear supplier as their primary taxonomy; each location can bill under its own NPI.

CMS NPPES registry, file of Aug 9, 2026 · legal names grouped after punctuation and "LLC" are removed · method · Verify with CMS →

Which NPI is yours?

Search the organization with your city to find the NPI for the location you visit or bill.

Find a location's NPI

Chicago has the most NPIs, 6

  1. Chicago6
  2. Buffalo Grove1
  3. Crystal Lake1
  4. Deerfield1
  5. Glen Ellyn1
  6. Hinsdale1
  7. Lake In The Hills1
  8. Park Ridge1

Source: CMS NPPES monthly file of Aug 9, 2026, organization NPIs by practice city.

Most NPIs were issued in 2019 and 2020

Gwa Optical NPIs by year issued2019: 11, 2020: 505101520192020115
Gwa Optical NPIs by year issued2019: 11, 2020: 505101520192020115
Gwa Optical NPIs by year issued2019: 11, 2020: 505101520192020115

Source: CMS NPPES, enumeration dates.

11 NPIs were issued in 2019 alone, more than in any other year.

Chicago locations

The city with the most Gwa Optical NPIs. The full list of all 16 follows.

NPILocationPrimary taxonomyIssued
1427606680410 N MICHIGAN AVE, ChicagoEyewear SupplierAug 30, 2019
13165953903646 N BROADWAY ST, ChicagoEyewear SupplierSep 3, 2019
1043868037410 N MICHIGAN AVE, ChicagoEyewear SupplierSep 3, 2019
13165972481554 E 55TH ST, ChicagoEyewear SupplierSep 12, 2019
15286793965440 N CLARK ST, ChicagoEyewear SupplierAug 13, 2020
126504303811 E 75TH ST, ChicagoEyewear SupplierAug 13, 2020
All 16 locations, by city
NPILocationPrimary taxonomyIssued
162962660115 N BUFFALO GROVE RD, Buffalo GroveEyewear SupplierSep 3, 2019
1427606680410 N MICHIGAN AVE, ChicagoEyewear SupplierAug 30, 2019
13165953903646 N BROADWAY ST, ChicagoEyewear SupplierSep 3, 2019
1043868037410 N MICHIGAN AVE, ChicagoEyewear SupplierSep 3, 2019
13165972481554 E 55TH ST, ChicagoEyewear SupplierSep 12, 2019
15286793965440 N CLARK ST, ChicagoEyewear SupplierAug 13, 2020
126504303811 E 75TH ST, ChicagoEyewear SupplierAug 13, 2020
1245888239151 NORTHWEST HWY, Crystal LakeEyewear SupplierSep 3, 2019
1518515592780 WAUKEGAN RD, DeerfieldEyewear SupplierSep 3, 2019
1790333789324 ROOSEVELT RD, Glen EllynEyewear SupplierSep 3, 2019
188120565615 GRANT SQ, HinsdaleEyewear SupplierAug 13, 2020
1295383271100 N RANDALL RD, Lake In The HillsEyewear SupplierSep 3, 2019
1780295550800 DEVON AVE, Park RidgeEyewear SupplierAug 13, 2020
11145751987251 LAKE ST, River ForestEyewear SupplierSep 3, 2019
1093363079200 E ROOSEVELT RD, Villa ParkEyewear SupplierSep 3, 2019
14377602041811 BELVIDERE RD, WaukeganEyewear SupplierAug 13, 2020

Checking an organization

  1. Match the NPI to the exact location you will visit or bill; each location can have its own.
  2. Confirm the business entity with the secretary of state.
  3. Check the HHS-OIG exclusion list for the organization and its owners.
  4. Verify each clinician you will see on their own record and with the state license search.

Common questions

Why does Gwa Optical have 16 NPIs?

An organization may obtain more than one Type 2 NPI, for example for separate locations or units that bill on their own. Gwa Optical's NPIs list practice locations in 11 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.