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Michael Grassa Dental PC

Q: What type of organization is Michael Grassa Dental PC?

Michael Grassa Dental PC is registered in NPPES as a Dental Clinic/Center (its primary provider taxonomy).

Dental Clinic/Center in Sayville, NY · enumerated 2025 · authorized official Michael Grassa, Owner.

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

National Provider Identifier

1982597076

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Registry record

Entity type Organization (Type 2)

Legal business name Michael Grassa Dental PC

Practice address 207 W Main St, Sayville, NY, 11782

Phone (631) 589-0672

Enumeration date May 29, 2025

Last updated in NPPES May 29, 2025

Taxonomy & classification

261QD0000X Dental Clinic/Center Ambulatory Health Care Facilities Primary

Authorized official

Name Michael Grassa

Title Owner

Phone (631) 365-9568

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 Michael Grassa Dental PC?

Michael Grassa Dental PC is registered in NPPES as a Dental Clinic/Center (its primary provider taxonomy).

Providers at this address

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Sayville Family Dentistry General Practice Dentistry · Sayville, NY NPI 1548334766

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-05-29.