Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Sunny Massi
Social Worker in Mahopac, NY · enumerated 2018.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1376047159
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name Sunny Massi
Sex Female
Practice address 22 Maple Hill Dr, Mahopac, NY, 10541
Phone (123) 456-7899
Enumeration date Mar 19, 2018
Last updated in NPPES Mar 19, 2018
Taxonomy & licenses
104100000X Social Worker Behavioral Health & Social Service Providers · License 097900-1 (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 Sunny Massi practice?
The practice location on file with NPPES is in Mahopac, NY. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Sunny Massi?
The National Provider Identifier (NPI) for Sunny Massi is 1376047159, a Type 1 (individual) record in the CMS NPPES registry.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-03-19.