Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Sylvia Milewski

Behavior Analyst in New York, NY · enumerated 2020.

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

National Provider Identifier

1952900573

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Registry record

Entity type Individual (Type 1)

Name Sylvia Milewski

Sex Female

Practice address 107 W 82nd St Ste P101, New York, NY, 10024

Phone (646) 389-4112

Enumeration date Oct 23, 2020

Last updated in NPPES Mar 13, 2025

Taxonomy & licenses

103K00000X Behavior Analyst Behavioral Health & Social Service Providers 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.

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Frequently asked questions

Where does Sylvia Milewski practice?

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

What is the NPI number for Sylvia Milewski?

The National Provider Identifier (NPI) for Sylvia Milewski is 1952900573, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-03-13.