Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Island Dentistry,P.C.

Dentist in Vineyard Haven, MA · enumerated 2009 · authorized official Helene Schaeffer, Owner/Dentist.

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

National Provider Identifier

1851535728

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Registry record

Entity type Organization (Type 2)

Legal business name Island Dentistry,P.C.

Practice address 23 Airport Road, Vineyard Haven, MA, 02568

Phone (508) 696-8426

Fax (508) 696-8488

Enumeration date Apr 23, 2009

Last updated in NPPES Apr 23, 2009

Taxonomy & classification

122300000X Dentist Dental Providers · License 19060 (MA) Primary

Authorized official

Name Helene Schaeffer

Title Owner/Dentist

Phone (508) 696-8426

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

Where is Island Dentistry,P.C. located?

The practice location on file with NPPES is in Vineyard Haven, MA.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2009-04-23. Verify at npiregistry.cms.hhs.gov.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-04-23.