Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mrs. Leann O Casto, LCSW
Clinical Social Worker in Slc, UT · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1639204126
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Registry record
Entity type Individual (Type 1)
Name Mrs. Leann O Casto
Credential LCSW
Sex Female
Practice address 967 E Murray Holladay Road, Slc, UT, 84117
Phone (801) 278-9342
Enumeration date Feb 23, 2007
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 1234163501 (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 Leann Casto?
The National Provider Identifier (NPI) for Leann Casto is 1639204126, a Type 1 (individual) record in the CMS NPPES registry.
Where does Leann Casto practice?
The practice location on file with NPPES is in Slc, UT. Providers can have multiple locations; NPPES lists the primary practice address.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.