Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Jennifer Anne Leibstein
Specialist in South Setauket, NY · enumerated 2022.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1114643186
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Registry record
Entity type Individual (Type 1)
Name Jennifer Anne Leibstein
Sex Female
Practice address 25 Royalston Ln, South Setauket, NY, 11720
Phone (631) 346-1181
Enumeration date Oct 12, 2022
Last updated in NPPES Oct 12, 2022
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 Jennifer Leibstein?
The National Provider Identifier (NPI) for Jennifer Leibstein is 1114643186, a Type 1 (individual) record in the CMS NPPES registry.
Where does Jennifer Leibstein practice?
The practice location on file with NPPES is in South Setauket, NY. Providers can have multiple locations; NPPES lists the primary practice address.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-10-12.