Registry data as of Aug 27, 2026

Jefferson County

Jefferson County holds 14 active organization NPIs in the federal registry, with practice locations in 6 cities in 5 states. 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 →

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Jefferson, WI has the most NPIs, 9

  1. Jefferson, WI9
  2. Birmingham, AL1
  3. Arvada, CO1
  4. Golden, CO1
  5. Fairfield, IA1
  6. Mount Vernon, IL1

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

Most NPIs were issued in 2007 and 2008

Jefferson County NPIs by year issued2005: 1, 2006: 1, 2007: 6, 2008: 2, 2009: 1, 2010: 1, 2011: 0, 2012: 0, 2013: 0, 2014: 0, 2015: 0, 2016: 0, 2017: 0, 2018: 0, 2019: 0, 2020: 0, 2021: 0, 2022: 0, 2023: 1, 2024: 1024620062008201020122014201620182020202220242007: 62111111
Jefferson County NPIs by year issued2005: 1, 2006: 1, 2007: 6, 2008: 2, 2009: 1, 2010: 1, 2011: 0, 2012: 0, 2013: 0, 2014: 0, 2015: 0, 2016: 0, 2017: 0, 2018: 0, 2019: 0, 2020: 0, 2021: 0, 2022: 0, 2023: 1, 2024: 1024620062008201020122014201620182020202220242007: 62111111
Jefferson County NPIs by year issued2005: 1, 2006: 1, 2007: 6, 2008: 2, 2009: 1, 2010: 1, 2011: 0, 2012: 0, 2013: 0, 2014: 0, 2015: 0, 2016: 0, 2017: 0, 2018: 0, 2019: 0, 2020: 0, 2021: 0, 2022: 0, 2023: 1, 2024: 1024620062009201220152018202120242007: 6111111

Source: CMS NPPES, enumeration dates.

6 NPIs were issued in 2007 alone, more than in any other year; none in 12 of the years between.

Jefferson, WI locations

The city with the most Jefferson County NPIs. The full list of all 14 follows.

NPILocationPrimary taxonomyIssued
15785622861541 ANNEX RD, Jefferson, WIMental Health Clinic/Center (Including Community Mental Health Center)Jul 15, 2005
12756149191541 ANNEX RD, Jefferson, WIMental Health Clinic/Center (Including Community Mental Health Center)Oct 18, 2006
12958649571541 ANNEX RD, Jefferson, WICommunity/Behavioral Health AgencyMar 5, 2007
12554609781541 ANNEX RD, Jefferson, WICase Management AgencyMar 6, 2007
16099053221541 ANNEX RD, Jefferson, WICommunity/Behavioral Health AgencyMar 6, 2007
13362780501541 ANNEX RD, Jefferson, WICommunity/Behavioral Health AgencyMar 6, 2007
16898438311541 ANNEX RD, Jefferson, WICommunity/Behavioral Health AgencyFeb 21, 2008
11444993851541 ANNEX RD, Jefferson, WICommunity/Behavioral Health AgencyFeb 21, 2008
All 14 locations, by state and city
NPILocationPrimary taxonomyIssued
11242249772100 18TH ST S, Birmingham, ALLocal Education Agency (LEA)Jun 26, 2007
17001898836303 WADSWORTH BYPASS, Arvada, COPublic Health or Welfare AgencyDec 13, 2010
1952157547900 JEFFERSON COUNTY PKWY, Golden, COCase Management AgencyApr 25, 2024
18712779051900 W BURLINGTON AVE, Fairfield, IALand AmbulanceJun 9, 2023
12352539074102 S WATER TOWER PL, Mount Vernon, ILPublic Health or Welfare AgencyMar 19, 2007
15785622861541 ANNEX RD, Jefferson, WIMental Health Clinic/Center (Including Community Mental Health Center)Jul 15, 2005
12756149191541 ANNEX RD, Jefferson, WIMental Health Clinic/Center (Including Community Mental Health Center)Oct 18, 2006
12958649571541 ANNEX RD, Jefferson, WICommunity/Behavioral Health AgencyMar 5, 2007
12554609781541 ANNEX RD, Jefferson, WICase Management AgencyMar 6, 2007
16099053221541 ANNEX RD, Jefferson, WICommunity/Behavioral Health AgencyMar 6, 2007
13362780501541 ANNEX RD, Jefferson, WICommunity/Behavioral Health AgencyMar 6, 2007
16898438311541 ANNEX RD, Jefferson, WICommunity/Behavioral Health AgencyFeb 21, 2008
11444993851541 ANNEX RD, Jefferson, WICommunity/Behavioral Health AgencyFeb 21, 2008
18111354941541 ANNEX RD, Jefferson, WIPublic Health or Welfare AgencyFeb 4, 2009

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 Jefferson County have 14 NPIs?

An organization may obtain more than one Type 2 NPI, for example for separate locations or units that bill on their own. Jefferson County's NPIs list practice locations in 6 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.