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Bayside Diagnostics Laboratory

Clinical Medical Laboratory in Flushing, NY · enumerated 2006 · authorized official Margarita Pestun, Billing Manager.

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

National Provider Identifier

1194896936

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Registry record

Entity type Organization (Type 2)
Legal business name Bayside Diagnostics Laboratory
Practice address 14204 Bayside Ave, Flushing, NY, 11354
Phone (718) 886-8500
Fax (718) 886-2964
Enumeration date Nov 13, 2006
Last updated in NPPES Aug 22, 2020

Taxonomy & classification

291U00000X Clinical Medical Laboratory Laboratories Primary

Authorized official

Name Margarita Pestun
Title Billing Manager
Phone (718) 886-8500

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

What is the NPI number for Bayside Diagnostics Laboratory?
The NPI for Bayside Diagnostics Laboratory is 1194896936, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Bayside Diagnostics Laboratory?
NPPES lists Margarita Pestun (Billing Manager) as the authorized official for this organization.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-22.