Registry data as of Aug 27, 2026

Site Group

Site Group holds 6 active organization NPIs in the federal registry, with practice locations in 3 California cities. 5 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

San Francisco has the most NPIs, 4

  1. San Francisco4
  2. Eureka1
  3. Oakland1

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

Most NPIs were issued in 2007 and 2015

Site Group NPIs by year issued2007: 1, 2008: 0, 2009: 0, 2010: 0, 2011: 0, 2012: 0, 2013: 0, 2014: 0, 2015: 5024620072008200920102011201220132014201515
Site Group NPIs by year issued2007: 1, 2008: 0, 2009: 0, 2010: 0, 2011: 0, 2012: 0, 2013: 0, 2014: 0, 2015: 5024620072008200920102011201220132014201515
Site Group NPIs by year issued2007: 1, 2008: 0, 2009: 0, 2010: 0, 2011: 0, 2012: 0, 2013: 0, 2014: 0, 2015: 5024620072008200920102011201220132014201515

Source: CMS NPPES, enumeration dates.

5 NPIs were issued in 2015 alone, more than in any other year; none in 7 of the years between.

San Francisco locations

The city with the most Site Group NPIs. The full list of all 6 follows.

NPILocationPrimary taxonomyIssued
12850259241833 FILLMORE ST SUITE 100, San FranciscoEyewear SupplierFeb 17, 2015
1265823900300 W PORTAL AVE SUITE 100, San FranciscoEyewear SupplierFeb 17, 2015
1629433263176 SUTTER ST, San FranciscoEyewear SupplierDec 28, 2015
1871958231140 BATTERY ST SUITE 100, San FranciscoEyewear SupplierDec 29, 2015
All 6 locations, by city
NPILocationPrimary taxonomyIssued
13163380561209 BROADWAY, EurekaEyewear SupplierFeb 17, 2015
1851410468829 BROADWAY, OaklandOphthalmic Technician/TechnologistMar 28, 2007
12850259241833 FILLMORE ST SUITE 100, San FranciscoEyewear SupplierFeb 17, 2015
1265823900300 W PORTAL AVE SUITE 100, San FranciscoEyewear SupplierFeb 17, 2015
1629433263176 SUTTER ST, San FranciscoEyewear SupplierDec 28, 2015
1871958231140 BATTERY ST SUITE 100, San FranciscoEyewear SupplierDec 29, 2015

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 Site Group have 6 NPIs?

An organization may obtain more than one Type 2 NPI, for example for separate locations or units that bill on their own. Site Group's NPIs list practice locations in 3 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.