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M. KO AND A. KO, PLLC
NPI 1275298937
Dentist - Periodontics in Bellevue, WA

Active since November 07, 2021
12826 SE 40TH LN STE 100, BELLEVUE, WA 98006(425) 877-1423 Get Directions Write a Review

NPPES record last updated: May 26, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: May 26, 2026, Nov 7, 2021 (2 updates tracked since 2021).

About M. Ko And A. Ko, Pllc NPPES

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

M. KO AND A. KO, PLLC (NPI 1275298937), doing business as Dr. Michelle Ko, Dds Ms, is a healthcare organization registered as a periodontics in Bellevue, Washington and active in the NPI registry since November 2021. The organization lists Michelle Mei-hsuan Ko, President, as its authorized official.

NPPES Registry Identity

NPI1275298937
Entity TypeOrganization
Primary Taxonomy1223P0300X
Legal Business NameM. KO AND A. KO, PLLC
Location Address12826 SE 40TH LN STE 100Bellevue, WA 98006-5266
Mailing Address12826 Se 40th Ln Ste 100Bellevue, WA 98006-5266 · (425) 877-1423
Phone(425) 877-1423
Organization SubpartNo
Authorized OfficialMichelle Mei-hsuan KoPresident · (206) 474-7394
Enumeration DateNovember 7, 2021
Last NPPES UpdateMay 26, 20262 updates tracked since enumeration
NPPES CertifiedMay 26, 2026
✔ NPI 1275298937 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentist · PeriodonticsDental Providers
Taxonomy Code1223P0300X
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.
12826 SE 40TH LN STE 100, Bellevue, WA 98006
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Other Names 2

Doing Business AsDr. Michelle Ko, Dds Ms
Doing Business AsKo & Ko Periodontics

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. MICHELLE MEI-HSUAN KO DDS., MS.
Dentist (Periodontics)
12826 SE 40TH LN STE 100
BELLEVUE, WA 98006
King County (425) 877-1423
DR. ALEXANDER KO DMD, MSD
Dentist (Periodontics)
12826 SE 40TH LN STE 100
BELLEVUE, WA 98006
King County (425) 877-1423

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 M. Ko And A. Ko, PLLC's NPI number?

The NPI number for M. Ko And A. Ko, PLLC is 1275298937. It was assigned to this organization in the NPPES registry on November 7, 2021. The provider is doing business as Dr. Michelle Ko, DDS MS and Ko & Ko Periodontics.

Where is M. Ko And A. Ko, PLLC located?

M. Ko And A. Ko, PLLC is located at 12826 SE 40th Ln Ste 100, Bellevue, WA 98006. The listed phone number is (425) 877-1423.

What is M. Ko And A. Ko, PLLC'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 M. Ko And A. Ko, PLLC was last updated on May 26, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months 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.