Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Alexa Castro
Behavior Technician in Cypress, TX · enumerated 2023.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1821779901
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Registry record
Entity type Individual (Type 1)
Name Alexa Castro
Sex Female
Practice address 15103 Mason Rd Ste C-1, Cypress, TX, 77433
Phone (281) 602-3564
Enumeration date Jul 31, 2023
Last updated in NPPES Jul 31, 2023
Taxonomy & licenses
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
Is NPI 1821779901 active?
Yes, as of the latest NPPES snapshot, NPI 1821779901 is active (record last updated 2023-07-31).
How do I verify Alexa Castro's NPI record?
Cross-check NPI 1821779901 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
Browse all → Colleen Ruiz Behavior Analyst · Cypress, TX NPI 1659818961 Hope Darlington Behavior Analyst · Cypress, TX NPI 1184182172 Cheyenne Kuntz Behavior Analyst · Cypress, TX NPI 1952974644 Dexter Lino Behavior Technician · Cypress, TX NPI 1588329833 Leann Raska Behavior Technician · Cypress, TX NPI 1023769122 Elescia Martinez Behavior Technician · Cypress, TX NPI 1548912769 Victoria Castillo Behavior Technician · Cypress, TX NPI 1194478362 Laura Restrepo Behavior Technician · Cypress, TX NPI 1154076016
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-07-31.