Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Yasemin Tastan, LMSW
Social Worker in Commack, NY · enumerated 2021.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1447841408
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Registry record
Entity type Individual (Type 1)
Name Yasemin Tastan
Credential LMSW
Sex Female
Practice address 6218 Jericho Tpke, Commack, NY, 11725
Phone (631) 499-5437
Enumeration date Feb 1, 2021
Last updated in NPPES Apr 23, 2025
Taxonomy & licenses
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 Yasemin Tastan?
The National Provider Identifier (NPI) for Yasemin Tastan is 1447841408, a Type 1 (individual) record in the CMS NPPES registry.
Where does Yasemin Tastan practice?
The practice location on file with NPPES is in Commack, NY. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Julie D'Alessandro Pediatric Nurse Practitioner · Commack, NY NPI 1134839889 Katherine Bollman Social Worker · Commack, NY NPI 1275397549 Sara-Anne Sichler Social Worker · Commack, NY NPI 1861213076 Brittany Cerami Social Worker · Commack, NY NPI 1164381877 Liliana Cordero Social Worker · Commack, NY NPI 1902729676
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-04-23.