NPPES file of Aug 9, 2026

Great Lakes Eye Institute

Great Lakes Eye Institute holds 7 active organization NPIs in the federal registry, with practice locations in 5 Michigan cities. 6 list ophthalmology physician 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

Saginaw has the most NPIs, 3

  1. Saginaw3
  2. Alma1
  3. Bay City1
  4. Cass City1
  5. Frankenmuth1

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

Most NPIs were issued in 2006 and 2007

Great Lakes Eye Institute NPIs by year issued2006: 1, 2007: 4, 2008: 1, 2009: 0, 2010: 0, 2011: 0, 2012: 0, 2013: 0, 2014: 0, 2015: 0, 2016: 0, 2017: 0, 2018: 0, 2019: 0, 2020: 1012342006200820102012201420162018202012007: 411
Great Lakes Eye Institute NPIs by year issued2006: 1, 2007: 4, 2008: 1, 2009: 0, 2010: 0, 2011: 0, 2012: 0, 2013: 0, 2014: 0, 2015: 0, 2016: 0, 2017: 0, 2018: 0, 2019: 0, 2020: 1012342006200720082009201020112012201320142015201620172018201920201411
Great Lakes Eye Institute NPIs by year issued2006: 1, 2007: 4, 2008: 1, 2009: 0, 2010: 0, 2011: 0, 2012: 0, 2013: 0, 2014: 0, 2015: 0, 2016: 0, 2017: 0, 2018: 0, 2019: 0, 2020: 1012342006200820102012201420162018202012007: 411

Source: CMS NPPES, enumeration dates.

4 NPIs were issued in 2007 alone, more than in any other year; none in 11 of the years between.

Saginaw locations

The city with the most Great Lakes Eye Institute NPIs. The full list of all 7 follows.

NPILocationPrimary taxonomyIssued
14270909762393 SCHUST RD, SaginawRetina Specialist (Ophthalmology) PhysicianJun 11, 2006
19929858402393 SCHUST RD, SaginawOphthalmology PhysicianNov 8, 2007
10636807912393 SCHUST RD, SaginawOphthalmology PhysicianFeb 15, 2008
All 7 locations, by city
NPILocationPrimary taxonomyIssued
1346424272623 W WARWICK DR SUITE 1, AlmaOphthalmology PhysicianDec 27, 2007
1003437823800 WOODSIDE AVE, Bay CityOphthalmology PhysicianMay 4, 2020
14474343784624 HILL ST, Cass CityOphthalmology PhysicianDec 27, 2007
1841474772406 W GENESEE ST, FrankenmuthOphthalmology PhysicianDec 27, 2007
14270909762393 SCHUST RD, SaginawRetina Specialist (Ophthalmology) PhysicianJun 11, 2006
19929858402393 SCHUST RD, SaginawOphthalmology PhysicianNov 8, 2007
10636807912393 SCHUST RD, SaginawOphthalmology PhysicianFeb 15, 2008

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 Great Lakes Eye Institute have 7 NPIs?

An organization may obtain more than one Type 2 NPI, for example for separate locations or units that bill on their own. Great Lakes Eye Institute's NPIs list practice locations in 5 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.