Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Mrs. Korryna Finkelstein, M.A., ED.M.

Behavior Analyst in Port Chester, NY · enumerated 2018.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1558842765

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Registry record

Entity type Individual (Type 1)

Name Mrs. Korryna Finkelstein

Credential M.A., ED.M.

Sex Female

Practice address Port Chester, NY, 10573

Phone (774) 230-6621

Enumeration date Aug 25, 2018

Last updated in NPPES Aug 16, 2021

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

103K00000X Behavior Analyst Behavioral Health & Social Service Providers Secondary

103TS0200X School Psychologist Behavioral Health & Social Service Providers Secondary

103K00000X Behavior Analyst Behavioral Health & Social Service Providers · License 1151 (CT) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Korryna Finkelstein practice?

The practice location on file with NPPES is in Port Chester, NY. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Korryna Finkelstein?

The National Provider Identifier (NPI) for Korryna Finkelstein is 1558842765, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-08-16.