William Castillo
Behavior Technician · Englewood, CO
William Castillo is a behavior technician with a practice address in Englewood, Colorado, and NPI 1720830110, issued on Apr 1, 2024. Check the license with the Colorado board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- William Castillo
- Primary taxonomy
- Behavior Technician 106S00000X
- Practice location
- 4375 S Elati St, Englewood, CO 80110
- Phone
- (720) 369-9946
- Enumerated
- Apr 1, 2024
- Entity
- Type 1 · individual
Also registered at 4375 S Elati St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify William Castillo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Colorado board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
254 behavior technician records list a Englewood practice address
They are 254 of the 2,840 NPPES records with a Englewood practice address, and 12,288 behavior technician records in Colorado. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 254 in Englewood → All 12,288 in Colorado → Every provider in Englewood →
Other behavior technician records in Colorado
- Elizabeth AbadAurora, CO1831955095
- Reynolds AbadColorado Springs, CO1538930557
- Khalid AbahussainLoveland, CO1558134239
- Evelina AbayevaDenver, CO1376007450
- Giuseppe AbbatielloLakewood, CO1619459898
- Hannah AbbeyBoulder, CO1639902984
- Caitlin AbbottColorado Springs, CO1912563602
- Julie AbbottEnglewood, CO1386313989
- Kendra AbbottColorado Springs, CO1689214124
- Lyndsey AbbottColorado Springs, CO1821590662
Common questions
What is William Castillo's NPI number?
William Castillo's National Provider Identifier (NPI) is 1720830110, issued on Apr 1, 2024. An NPI identifies a provider in billing; it is not a license.
Where is William Castillo located?
The NPPES record lists a practice address at 4375 S Elati St, Englewood, CO, 80110. Phone: (720) 369-9946. Providers update this record themselves, so call before visiting.
How can I verify William Castillo's license?
Search the Colorado board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.