Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Alexandra Pena
Behavior Analyst in Hayward, CA · enumerated 2018.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1255834347
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Registry record
Entity type Individual (Type 1)
Name Alexandra Pena
Sex Female
Practice address 1149 A St, Hayward, CA, 94541
Phone (510) 901-2051
Enumeration date Mar 14, 2018
Last updated in NPPES Mar 14, 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
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 Alexandra Pena?
Alexandra Pena is registered in NPPES with the primary taxonomy of Behavior Analyst. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
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 2018-03-14.