Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mr. Alejandro Aguilar Jr.
Behavior Analyst in Hayward, CA · enumerated 2018.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1427524255
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Registry record
Entity type Individual (Type 1)
Name Mr. Alejandro Aguilar Jr.
Sex Male
Practice address 1149 A St, Hayward, CA, 94541
Phone (510) 901-2050
Enumeration date Oct 19, 2018
Last updated in NPPES Oct 19, 2018
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
Where does Alejandro Aguilar practice?
The practice location on file with NPPES is in Hayward, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Alejandro Aguilar?
The National Provider Identifier (NPI) for Alejandro Aguilar is 1427524255, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all → Logan Rice Behavior Analyst · Hayward, CA NPI 1700283355 Linette Gomez-Castro Behavior Technician · Hayward, CA NPI 1265930390 Rachel Kahn Behavior Technician · Hayward, CA NPI 1720586852 Koy Saelee Behavior Technician · Hayward, CA NPI 1801394713 Patricia Marie Madueno Behavior Analyst · Hayward, CA NPI 1699273581 Jessica Gamino Behavior Technician · Hayward, CA NPI 1124526017 Xiangyu Lopez Behavior Technician · Hayward, CA NPI 1083112882 Vanessa Walker Behavior Technician · Hayward, CA NPI 1780182493
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-10-19.