Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Seth Stack
Optician in Monroe, NY · enumerated 2019.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1558902171
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Registry record
Entity type Individual (Type 1)
Name Seth Stack
Sex Male
Practice address 845 State Route 17m, Monroe, NY, 10950
Phone (845) 294-5128
Fax (845) 294-1479
Enumeration date Oct 4, 2019
Last updated in NPPES Oct 4, 2019
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
Where does Seth Stack practice?
The practice location on file with NPPES is in Monroe, NY. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Seth Stack?
The National Provider Identifier (NPI) for Seth Stack is 1558902171, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-10-04.