Registry data as of Aug 27, 2026

Side By Side

Side By Side holds 7 active organization NPIs in the federal registry, with practice locations in 5 California cities. 5 list community/behavioral health agency 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

Santa Rosa has the most NPIs, 2

  1. Santa Rosa2
  2. Watsonville2
  3. Hayward1
  4. San Anselmo1
  5. San Rafael1

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

Most NPIs were issued in 2006 and 2017

Side By Side NPIs by year issued2006: 1, 2007: 1, 2008: 1, 2009: 0, 2010: 1, 2011: 0, 2012: 0, 2013: 0, 2014: 0, 2015: 1, 2016: 0, 2017: 200.511.52200620072008200920102011201220132014201520162017121111
Side By Side NPIs by year issued2006: 1, 2007: 1, 2008: 1, 2009: 0, 2010: 1, 2011: 0, 2012: 0, 2013: 0, 2014: 0, 2015: 1, 2016: 0, 2017: 200.511.52200620072008200920102011201220132014201520162017121111
Side By Side NPIs by year issued2006: 1, 2007: 1, 2008: 1, 2009: 0, 2010: 1, 2011: 0, 2012: 0, 2013: 0, 2014: 0, 2015: 1, 2016: 0, 2017: 200.511.522007200920112013201520172006: 121111

Source: CMS NPPES, enumeration dates.

2 NPIs were issued in 2017 alone, more than in any other year; none in 6 of the years between.

Santa Rosa locations

The city with the most Side By Side NPIs. The full list of all 7 follows.

NPILocationPrimary taxonomyIssued
13160195651360 N DUTTON AVE STE C, Santa RosaCommunity/Behavioral Health AgencyNov 14, 2006
19720391211360 N DUTTON AVE STE C, Santa RosaCommunity/Behavioral Health AgencyMay 10, 2017
All 7 locations, by city
NPILocationPrimary taxonomyIssued
117477563922245 MAIN ST SUITES 102, 200-215, HaywardCommunity/Behavioral Health AgencyOct 15, 2008
1912434929300 SUNNYHILLS DR, San AnselmoCommunity/Behavioral Health AgencyMay 22, 2017
1457742835810 5TH AVE STE 100, San RafaelCommunity/Behavioral Health AgencyFeb 6, 2015
13160195651360 N DUTTON AVE STE C, Santa RosaCommunity/Behavioral Health AgencyNov 14, 2006
19720391211360 N DUTTON AVE STE C, Santa RosaCommunity/Behavioral Health AgencyMay 10, 2017
1457474108225 WESTRIDGE DR, WatsonvilleCounselorApr 9, 2007
1093023996225 WESTRIDGE DR, WatsonvilleEarly Intervention Provider AgencySep 14, 2010

Related names

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 Side By Side 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. Side By Side'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.