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Montauk Medical Associates Pllc

Q: What is the NPI number for Montauk Medical Associates Pllc?

The NPI for Montauk Medical Associates Pllc is 1619641990, a Type 2 (organization) record in the CMS NPPES registry.

Anesthesiology Physician in West Islip, NY · enumerated 2021 · authorized official Reginald Rousseau, Member.

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

National Provider Identifier

1619641990

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Registry record

Entity type Organization (Type 2)

Legal business name Montauk Medical Associates Pllc

Practice address 1000 Montauk Hwy, West Islip, NY, 11795

Phone (833) 547-7463

Fax (631) 248-5583

Enumeration date Aug 2, 2021

Last updated in NPPES Mar 9, 2023

Taxonomy & classification

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Reginald Rousseau

Title Member

Phone (833) 547-7463

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

What is the NPI number for Montauk Medical Associates Pllc?

The NPI for Montauk Medical Associates Pllc is 1619641990, a Type 2 (organization) record in the CMS NPPES registry.

Who is the authorized official for Montauk Medical Associates Pllc?

NPPES lists Reginald Rousseau (Member) as the authorized official for this organization.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-03-09.