Horizon House Delaware
Horizon House Delaware holds 22 active organization NPIs in the federal registry, with practice locations in 5 Delaware cities. 14 list mental health clinic/center (including community mental health center) as their primary taxonomy; each location can bill under its own NPI.
Search the organization with your city to find the NPI for the location you visit or bill.
Find a location's NPIWilmington has the most NPIs, 15
Source: CMS NPPES monthly file of Aug 9, 2026, organization NPIs by practice city.
Most NPIs were issued in 2007 and 2012
Source: CMS NPPES, enumeration dates.
5 NPIs were issued in 2007 alone, more than in any other year; none in 11 of the years between.
Wilmington locations
The city with the most Horizon House Delaware NPIs. The full list of all 22 follows.
| NPI | Location | Primary taxonomy | Issued |
|---|---|---|---|
| 1376685057 | 500 S MADISON ST IST DIVISION, Wilmington | Mental Health Clinic/Center (Including Community Mental Health Center) | Feb 12, 2007 |
| 1851415293 | 500 S MADISON ST IST DIVISION, Wilmington | Mental Health Clinic/Center (Including Community Mental Health Center) | Mar 19, 2007 |
| 1447375589 | 500 S MADISON ST IST DIVISION, Wilmington | Mental Health Clinic/Center (Including Community Mental Health Center) | Mar 20, 2007 |
| 1194840926 | 500 S MADISON ST IST DIVISION, Wilmington | Mental Health Clinic/Center (Including Community Mental Health Center) | Mar 20, 2007 |
| 1881719268 | 500 S MADISON ST IST DIVISION, Wilmington | Mental Health Clinic/Center (Including Community Mental Health Center) | Mar 21, 2007 |
| 1538392477 | 3120 NAAMANS RD, Wilmington | Intellectual & Developmental Disabilities Psychologist | Aug 26, 2009 |
| 1669735684 | 1902A MARYLAND AVE, Wilmington | Case Management Agency | Jun 25, 2012 |
| 1740545516 | 1902A MARYLAND AVE, Wilmington | Case Management Agency | Jul 9, 2012 |
All 22 locations, by city
| NPI | Location | Primary taxonomy | Issued |
|---|---|---|---|
| 1023372638 | 20793 PROFESSIONAL PARK BLVD, Georgetown | Case Management Agency | Jun 28, 2012 |
| 1588002919 | 20793 PROFESSIONAL PARK BLVD, Georgetown | Mental Health Clinic/Center (Including Community Mental Health Center) | Jun 7, 2013 |
| 1962343475 | 23769 SHORTLY RD, Georgetown | Mental Health Clinic/Center (Including Community Mental Health Center) | Apr 1, 2026 |
| 1699073692 | 417 E MAIN ST ASHLEY PLAZA, Middletown | Community/Behavioral Health Agency | Mar 1, 2011 |
| 1780525279 | 18090 HARBESON RD, Milton | Mental Health Clinic/Center (Including Community Mental Health Center) | Apr 1, 2026 |
| 1487595989 | 606 ATLANTIC AVE, Milton | Mental Health Clinic/Center (Including Community Mental Health Center) | Apr 1, 2026 |
| 1629376629 | 261 CHAPMAN RD SUITE 100-102, Newark | Community/Behavioral Health Agency | Mar 1, 2011 |
| 1376685057 | 500 S MADISON ST IST DIVISION, Wilmington | Mental Health Clinic/Center (Including Community Mental Health Center) | Feb 12, 2007 |
| 1851415293 | 500 S MADISON ST IST DIVISION, Wilmington | Mental Health Clinic/Center (Including Community Mental Health Center) | Mar 19, 2007 |
| 1447375589 | 500 S MADISON ST IST DIVISION, Wilmington | Mental Health Clinic/Center (Including Community Mental Health Center) | Mar 20, 2007 |
| 1194840926 | 500 S MADISON ST IST DIVISION, Wilmington | Mental Health Clinic/Center (Including Community Mental Health Center) | Mar 20, 2007 |
| 1881719268 | 500 S MADISON ST IST DIVISION, Wilmington | Mental Health Clinic/Center (Including Community Mental Health Center) | Mar 21, 2007 |
| 1538392477 | 3120 NAAMANS RD, Wilmington | Intellectual & Developmental Disabilities Psychologist | Aug 26, 2009 |
| 1669735684 | 1902A MARYLAND AVE, Wilmington | Case Management Agency | Jun 25, 2012 |
| 1740545516 | 1902A MARYLAND AVE, Wilmington | Case Management Agency | Jul 9, 2012 |
| 1366707135 | 1902A MARYLAND AVE, Wilmington | Case Management Agency | Jul 9, 2012 |
| 1699023804 | 1902A MARYLAND AVE, Wilmington | Community/Behavioral Health Agency | Aug 20, 2012 |
| 1568841310 | 1902A MARYLAND AVE, Wilmington | Mental Health Clinic/Center (Including Community Mental Health Center) | May 27, 2015 |
| 1861943524 | 1902A MARYLAND AVE, Wilmington | Mental Health Clinic/Center (Including Community Mental Health Center) | Oct 18, 2016 |
| 1417495847 | 1902A MARYLAND AVE, Wilmington | Mental Health Clinic/Center (Including Community Mental Health Center) | Feb 6, 2017 |
| 1700324126 | 1902A MARYLAND AVE, Wilmington | Mental Health Clinic/Center (Including Community Mental Health Center) | Feb 6, 2017 |
| 1740728161 | 1902A MARYLAND AVE, Wilmington | Mental Health Clinic/Center (Including Community Mental Health Center) | Feb 6, 2017 |
Checking an organization
- Match the NPI to the exact location you will visit or bill; each location can have its own.
- Confirm the business entity with the secretary of state.
- Check the HHS-OIG exclusion list for the organization and its owners.
- Verify each clinician you will see on their own record and with the state license search.
Common questions
Why does Horizon House Delaware have 22 NPIs?
An organization may obtain more than one Type 2 NPI, for example for separate locations or units that bill on their own. Horizon House Delaware'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.