Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Alyssa Nicole Guerrero
School Psychologist in Stockton, CA · enumerated 2026.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1518806165
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Registry record
Entity type Individual (Type 1)
Name Alyssa Nicole Guerrero
Sex Female
Practice address 3225 Deer Park Dr, Stockton, CA, 95219
Phone (209) 953-8677
Enumeration date Mar 27, 2026
Last updated in NPPES Mar 27, 2026
Taxonomy & licenses
103TS0200X School Psychologist Behavioral Health & Social Service Providers · License 230166415 (CA) Primary
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 Alyssa Guerrero practice?
The practice location on file with NPPES is in Stockton, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Alyssa Guerrero?
The National Provider Identifier (NPI) for Alyssa Guerrero is 1518806165, a Type 1 (individual) record in the CMS NPPES registry.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-03-27.