Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. John Sullivan, D.D.S.

Dentist in Tamuning, GU · enumerated 2011.

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

National Provider Identifier

1205104627

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Registry record

Entity type Individual (Type 1)

Name Dr. John Sullivan

Credential D.D.S.

Sex Male

Practice address 548 S Marine Corps Dr, Tamuning, GU, 96913

Phone (671) 646-5824

Fax (671) 647-3556

Enumeration date Dec 13, 2011

Last updated in NPPES Dec 13, 2011

Taxonomy & licenses

122300000X Dentist Dental Providers · License D930 (GU) Primary

DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS credential

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.

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Frequently asked questions

Where does John Sullivan practice?

The practice location on file with NPPES is in Tamuning, GU. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for John Sullivan?

The National Provider Identifier (NPI) for John Sullivan is 1205104627, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-12-13.