Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Olivia Harris, LCSW
Clinical Social Worker in Mesa, AZ · enumerated 2014.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1336557768
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Registry record
Entity type Individual (Type 1)
Name Olivia Harris
Credential LCSW
Sex Female
Practice address 840 E Mckellips Rd Ste 110, Mesa, AZ, 85203
Phone (602) 470-5520
Fax (480) 649-0783
Enumeration date Jul 29, 2014
Last updated in NPPES Jan 23, 2019
Taxonomy & licenses
1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 9836631-3501 (UT) Primary
LCSW · Licensed Clinical Social Worker: A social worker licensed for clinical practice including mental-health therapy.
About the LCSW credential
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
What is the NPI number for Olivia Harris?
The National Provider Identifier (NPI) for Olivia Harris is 1336557768, a Type 1 (individual) record in the CMS NPPES registry.
Where does Olivia Harris practice?
The practice location on file with NPPES is in Mesa, AZ. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-01-23.