Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

599 Boston Post Operating Company II LLC

Skilled Nursing Facility in Darien, CT · enumerated 2005 · authorized official Kevin Breslin, Executive Vp.

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

National Provider Identifier

1922006766

Verified

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Registry record

Entity type Organization (Type 2)

Legal business name 599 Boston Post Operating Company II LLC

Other name <Unavail>

Practice address 599 Boston Post Rd, Darien, CT, 06820

Phone (203) 655-7727

Fax (203) 655-6718

Enumeration date Jul 13, 2005

Last updated in NPPES Aug 22, 2020

Taxonomy & classification

314000000X Skilled Nursing Facility Nursing & Custodial Care Facilities · License 2277 (CT) Primary

Authorized official

Name Kevin Breslin

Title Executive Vp

Phone (201) 242-4004

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 a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

What type of organization is 599 Boston Post Operating Company II LLC?

599 Boston Post Operating Company II LLC is registered in NPPES as a Skilled Nursing Facility (its primary provider taxonomy).

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