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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Gregory Y Ogata, D.D.S., M.S.

Orthodontics and Dentofacial Orthopedics Dentistry in Sammamish, WA · enumerated 2007.

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

National Provider Identifier

1639358336

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Registry record

Entity type Individual (Type 1)
Name Dr. Gregory Y Ogata
Credential D.D.S., M.S.
Sex Male
Practice address Sammamish, WA, 98074
Phone (425) 868-6880
Fax (425) 868-5559
Enumeration date Oct 30, 2007
Last updated in NPPES Oct 30, 2007

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

1223X0400X Orthodontics and Dentofacial Orthopedics Dentistry Dental Providers · License 7081 (WA) 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

What is the NPI number for Gregory Ogata?
The National Provider Identifier (NPI) for Gregory Ogata is 1639358336, a Type 1 (individual) record in the CMS NPPES registry.
Where does Gregory Ogata practice?
The practice location on file with NPPES is in Sammamish, WA. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-10-30.