Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Lisa Sonin Larsen, PSYD
Psychologist in Lancaster, CA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1134158645
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Registry record
Entity type Individual (Type 1)
Name Lisa Sonin Larsen
Credential PSYD
Sex Female
Practice address 3123 W Avenue L8, Lancaster, CA, 93536
Phone (661) 233-6771
Fax (661) 941-4495
Enumeration date Jun 30, 2006
Last updated in NPPES Jul 10, 2025
Taxonomy & licenses
103T00000X Psychologist Behavioral Health & Social Service Providers · License PSY19046 (CA) Primary
PSYD · Doctor of Psychology: A clinical doctorate in psychology focused on professional practice.
About the PSYD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| CB809A | Other | CA | PTAN |
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 Lisa Larsen practice?
The practice location on file with NPPES is in Lancaster, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Lisa Larsen?
The National Provider Identifier (NPI) for Lisa Larsen is 1134158645, a Type 1 (individual) record in the CMS NPPES registry.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-07-10.