NPPES file of Aug 9, 2026

Oneopto Il 1

Oneopto Il 1 holds 10 active organization NPIs in the federal registry, with practice locations in 10 Illinois cities. All list optometrist 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

Antioch has the most NPIs, 1

  1. Antioch1
  2. Buffalo Grove1
  3. Chester1
  4. Chicago1
  5. Du Quoin1
  6. Glen Ellyn1
  7. Grayslake1
  8. Lake Zurich1

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

NPIs by year issued

Oneopto Il 1 NPIs by year issued2025: 1002.557.510202510
Oneopto Il 1 NPIs by year issued2025: 1002.557.510202510
Oneopto Il 1 NPIs by year issued2025: 1002.557.510202510

Source: CMS NPPES, enumeration dates.

10 NPIs were issued in 2025 alone, more than in any other year.

Antioch locations

The city with the most Oneopto Il 1 NPIs. The full list of all 10 follows.

NPILocationPrimary taxonomyIssued
1407728827735 MAIN ST, AntiochOptometristSep 23, 2025
All 10 locations, by city
NPILocationPrimary taxonomyIssued
1407728827735 MAIN ST, AntiochOptometristSep 23, 2025
1871465294400 W DUNDEE RD STE 14-15, Buffalo GroveOptometristSep 23, 2025
1912879321425 W HOLMES ST, ChesterOptometristSep 23, 2025
1841165131209 S LASALLE ST SUITE 120, ChicagoOptometristOct 7, 2025
1821960246630 S WASHINGTON ST, Du QuoinOptometristSep 23, 2025
1972475390489 TAFT AVE STE 100, Glen EllynOptometristSep 23, 2025
1235001652661 N LAKE ST, GrayslakeOptometristSep 23, 2025
1699647016534 N RAND RD, Lake ZurichOptometristSep 23, 2025
166934407315 N LOCUST ST, PinckneyvilleOptometristSep 23, 2025
1750253167520 E BROADWAY ST, SpartaOptometristSep 23, 2025

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 Oneopto Il 1 have 10 NPIs?

An organization may obtain more than one Type 2 NPI, for example for separate locations or units that bill on their own. Oneopto Il 1's NPIs list practice locations in 10 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.