Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Alejandra Angelina Leon
Behavior Technician in Martinez, CA · enumerated 2022.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1033835665
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Registry record
Entity type Individual (Type 1)
Name Alejandra Angelina Leon
Sex Female
Practice address 4138 Irene Dr, Martinez, CA, 94553
Phone (925) 812-5969
Enumeration date Oct 14, 2022
Last updated in NPPES Oct 14, 2022
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 this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Alejandra Leon?
Alejandra Leon is registered in NPPES with the primary taxonomy of Behavior Technician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-10-14.