Alexandria Castillo
Behavior Analyst · Ontario, CA
Alexandria Castillo is a behavior analyst with a practice address in Ontario, California, and NPI 1205610102, issued on Aug 22, 2023. Check the license with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Alexandria Castillo
- Primary taxonomy
- Behavior Analyst 103K00000X
- Practice location
- 1500 S Haven Ave, Ontario, CA 91761
- Phone
- (909) 749-5204
- Enumerated
- Aug 22, 2023
- Record last updated
- Aug 22, 2023
- Entity
- Type 1 · individual
Also registered at 1500 S Haven Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Tamara AndersonBehavior Technician1619757051
Verify Alexandria Castillo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California 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
362 behavior analyst records list a practice address in Ontario
They are 362 of the 5,375 NPPES records with a practice address in Ontario, and 20,348 behavior analyst records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 362 in Ontario → All 20,348 in California → Every provider in Ontario →
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- Althea Abaqueta, BCBAFountain Valley, CA1619272853
- Stephanie AbarcaCorona, CA1124987656
- Vanessa AbarcaSan Jose, CA1558900910
- Josette Abbas, BCBAWalnut Creek, CA1407357916
Common questions
What is Alexandria Castillo's NPI number?
Alexandria Castillo's National Provider Identifier (NPI) is 1205610102, issued on Aug 22, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Alexandria Castillo located?
The NPPES record lists a practice address at 1500 S Haven Ave, Ontario, CA, 91761. Phone: (909) 749-5204. Providers update this record themselves, so call before visiting.
How can I verify Alexandria Castillo's license?
Search the California board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.