Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Bv Sayville Operator, LLC

Assisted Living Facility in Sayville, NY · enumerated 2019 · authorized official David Greydanus, Authorized Signatory.

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

National Provider Identifier

1013473545

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Registry record

Entity type Organization (Type 2)

Legal business name Bv Sayville Operator, LLC

Practice address 445 Broadway Avenue, Sayville, NY, 11782

Phone (631) 319-0502

Fax (631) 319-9770

Enumeration date Feb 20, 2019

Last updated in NPPES Feb 20, 2019

Taxonomy & classification

310400000X Assisted Living Facility Nursing & Custodial Care Facilities Primary

311500000X Alzheimer Center (Dementia Center) Nursing & Custodial Care Facilities Secondary

Authorized official

Name David Greydanus

Title Authorized Signatory

Phone (410) 962-0595

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

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2019-02-20. Verify at npiregistry.cms.hhs.gov.

Where is Bv Sayville Operator, LLC located?

The practice location on file with NPPES is in Sayville, NY.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-02-20.