Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Diana Leonardo, LMSW
Social Worker in Garnerville, NY · enumerated 2023.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1881391951
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Registry record
Entity type Individual (Type 1)
Name Diana Leonardo
Credential LMSW
Sex Female
Practice address 7 Centennial Dr, Garnerville, NY, 10923
Phone (845) 480-2444
Enumeration date Feb 9, 2023
Last updated in NPPES Feb 9, 2023
Taxonomy & licenses
104100000X Social Worker Behavioral Health & Social Service Providers · License 11146601 (NY) 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 Diana Leonardo practice?
The practice location on file with NPPES is in Garnerville, NY. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Diana Leonardo?
The National Provider Identifier (NPI) for Diana Leonardo is 1881391951, a Type 1 (individual) record in the CMS NPPES registry.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-02-09.