Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Olivia Walsh, LSW
Social Worker in South Portland, ME · enumerated 2022.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1437800075
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Registry record
Entity type Individual (Type 1)
Name Olivia Walsh
Credential LSW
Sex Female
Practice address 100 Foden Rd Ste 100, South Portland, ME, 04106
Phone (207) 874-1486
Enumeration date Jan 14, 2022
Last updated in NPPES Mar 4, 2026
Taxonomy & licenses
104100000X Social Worker Behavioral Health & Social Service Providers · License LC24869 (ME) 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 Olivia Walsh practice?
The practice location on file with NPPES is in South Portland, ME. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Olivia Walsh?
The National Provider Identifier (NPI) for Olivia Walsh is 1437800075, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-03-04.