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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. ROSEMARY THOMAS DMD
NPI 1861791915
Dentist - Periodontics in Bellevue, WA

Active since March 15, 2011
1550 140TH AVE NE STE 201, BELLEVUE, WA 98005(425) 747-7007(425) 747-7342 Get Directions Write a Review

NPPES record last updated: September 26, 2026. Verified against the NPPES registry weekly; last sync: October 11, 2026.

Record update history: Sep 26, 2026, Oct 29, 2020, Mar 26, 2020 and 1 more (4 updates tracked since 2020).

About Dr. Rosemary Thomas Dmd NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. ROSEMARY THOMAS DMD (NPI 1861791915) is an individual periodontics provider in Bellevue, Washington, licensed in Washington (60843940) and active in the NPI registry since March 2011.

NPPES Registry Identity

NPI1861791915
Entity TypeIndividualFemale
Primary Taxonomy1223P0300X
Provider Legal NameDR. ROSEMARY THOMASCredential: DMD
Location Address1550 140TH AVE NE STE 201Bellevue, WA 98005-4500
Mailing Address1550 140th Ave Ne Ste 201Bellevue, WA 98005-4500 · (425) 747-7007 · Fax (425) 747-7342
Phone(425) 747-7007
Fax(425) 747-7342
Sole ProprietorNo
Enumeration DateMarch 15, 2011
Last NPPES UpdateSeptember 26, 20264 updates tracked since enumeration
NPPES CertifiedSeptember 26, 2026
✔ NPI 1861791915 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentist · PeriodonticsDental Providers
Taxonomy Code1223P0300X
License✔ Licensed in WA · 60843940
Definition
That specialty of dentistry which encompasses the prevention, diagnosis and treatment of diseases of the supporting and surrounding tissues of the teeth or their substitutes and the maintenance of the health, function and esthetics of these structures and tissues.
1550 140TH AVE NE STE 201, Bellevue, WA 98005
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Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Rosemary Thomas's NPI number?

The NPI number for Rosemary Thomas is 1861791915. It was assigned to this individual provider in the NPPES registry on March 15, 2011.

Where is Rosemary Thomas located?

Rosemary Thomas practices at 1550 140th Ave NE Ste 201, Bellevue, WA 98005. The listed phone number is (425) 747-7007.

What is Rosemary Thomas's specialty?

The primary specialty registered for this NPI is Dentist, specializing in Periodontics, with taxonomy code 1223P0300X.

When was this NPI record last updated?

The NPPES record for Rosemary Thomas was last updated on September 26, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 21 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.