NPPES file of Aug 9, 2026

Danbury Hospital

Danbury Hospital holds 16 active organization NPIs in the federal registry, with practice locations in 3 cities in 2 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 →

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

Danbury, CT has the most NPIs, 14

  1. Danbury, CT14
  2. New Milford, CT1
  3. New Rochelle, NY1

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

Most NPIs were issued in 2006 and 2007

Danbury Hospital NPIs by year issued2006: 6, 2007: 4, 2008: 3, 2009: 0, 2010: 1, 2011: 1, 2012: 0, 2013: 0, 2014: 0, 2015: 0, 2016: 0, 2017: 0, 2018: 0, 2019: 0, 2020: 0, 2021: 0, 2022: 0, 2023: 102462007200920112013201520172019202120232006: 643111
Danbury Hospital NPIs by year issued2006: 6, 2007: 4, 2008: 3, 2009: 0, 2010: 1, 2011: 1, 2012: 0, 2013: 0, 2014: 0, 2015: 0, 2016: 0, 2017: 0, 2018: 0, 2019: 0, 2020: 0, 2021: 0, 2022: 0, 2023: 10246200620072008200920102011201220132014201520162017201820192020202120222023643111
Danbury Hospital NPIs by year issued2006: 6, 2007: 4, 2008: 3, 2009: 0, 2010: 1, 2011: 1, 2012: 0, 2013: 0, 2014: 0, 2015: 0, 2016: 0, 2017: 0, 2018: 0, 2019: 0, 2020: 0, 2021: 0, 2022: 0, 2023: 102462007200920112013201520172019202120232006: 643111

Source: CMS NPPES, enumeration dates.

6 NPIs were issued in 2006 alone, more than in any other year; none in 12 of the years between.

Danbury, CT locations

The city with the most Danbury Hospital NPIs. The full list of all 16 follows.

NPILocationPrimary taxonomyIssued
154829334324 HOSPITAL AVE, Danbury, CTGeneral Acute Care HospitalJul 8, 2006
173010421724 HOSPITAL AVE INPATIENT PSYCHIATRY UNIT, Danbury, CTPsychiatric Hospital UnitJul 13, 2006
118464966724 HOSPITAL AVE NELSON GELFMAN, MD., DIALYSIS UNIT, Danbury, CTEnd-Stage Renal Disease (ESRD) Treatment Clinic/CenterJul 13, 2006
100383593570 MAIN ST, Danbury, CTDental Clinic/CenterJul 19, 2006
165939057324 HOSPITAL AVE INPATIENT REHABILITATION UNIT, Danbury, CTRehabilitation Hospital UnitJul 19, 2006
156864628924 HOSPITAL AVE, Danbury, CTAnatomic Pathology PhysicianDec 18, 2007
194248425824 HOSPITAL AVE DEPT. OF SURGERY, Danbury, CTSurgery PhysicianDec 21, 2007
175056505724 HOSPITAL AVE DANBURY HOSPITAL, Danbury, CTClinical Medical LaboratoryDec 21, 2007
All 16 locations, by state and city
NPILocationPrimary taxonomyIssued
154829334324 HOSPITAL AVE, Danbury, CTGeneral Acute Care HospitalJul 8, 2006
173010421724 HOSPITAL AVE INPATIENT PSYCHIATRY UNIT, Danbury, CTPsychiatric Hospital UnitJul 13, 2006
118464966724 HOSPITAL AVE NELSON GELFMAN, MD., DIALYSIS UNIT, Danbury, CTEnd-Stage Renal Disease (ESRD) Treatment Clinic/CenterJul 13, 2006
100383593570 MAIN ST, Danbury, CTDental Clinic/CenterJul 19, 2006
165939057324 HOSPITAL AVE INPATIENT REHABILITATION UNIT, Danbury, CTRehabilitation Hospital UnitJul 19, 2006
156864628924 HOSPITAL AVE, Danbury, CTAnatomic Pathology PhysicianDec 18, 2007
194248425824 HOSPITAL AVE DEPT. OF SURGERY, Danbury, CTSurgery PhysicianDec 21, 2007
175056505724 HOSPITAL AVE DANBURY HOSPITAL, Danbury, CTClinical Medical LaboratoryDec 21, 2007
180106427424 HOSPITAL AVE, Danbury, CTGeneral Acute Care HospitalFeb 19, 2008
145751612224 HOSPITAL AVE, Danbury, CTGeneral Acute Care HospitalJul 22, 2008
141710985124 HOSPITAL AVE, Danbury, CTGeneral Acute Care HospitalOct 16, 2008
169908669424 HOSPITAL AVE DEPT OF, Danbury, CTSurgery PhysicianJun 24, 2010
185168274424 HOSPITAL AVE, Danbury, CTEnd-Stage Renal Disease (ESRD) Treatment Clinic/CenterApr 26, 2011
159844999324 HOSPITAL AVE, Danbury, CTGeneral Acute Care HospitalJun 14, 2023
161993801621 ELM ST, New Milford, CTGeneral Acute Care HospitalMar 28, 2006
189197798980 GUION PL APT 5Y, New Rochelle, NYGeneral Acute Care HospitalNov 29, 2007

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 Danbury Hospital have 16 NPIs?

An organization may obtain more than one Type 2 NPI, for example for separate locations or units that bill on their own. Danbury Hospital'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.