OrganizationActive
M. Ko and A. Ko, PLLC
NPI 1275298937 · Periodontics · Bellevue, WA
M. Ko and A. Ko, PLLC is a Periodontics organization in Bellevue, WA (NPI 1275298937).
Provider details
- NPI number
- 1275298937
- Entity type
- Organization
- Primary specialty
- PeriodonticsDental Providers
- Organization subpart
- No
- Authorized official
- Michelle Ko, President(206) 474-7394
Specialties & taxonomies
Dental Providers
Profile Score
Established profile(61/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
4 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
12826 Se 40th Ln Ste 100
Bellevue, WA 98006-5266
Phone: (425) 877-1423
Street-level locationGet directions
Mailing address
12826 Se 40th Ln Ste 100
Bellevue, WA 98006-5266
Other names (DBA / former)
- Doing business as
- Dr. Michelle Ko, DDS Ms
- Doing business as
- Ko & Ko Periodontics
Registry dates
- Enumerated
- 2021-11-07
- Last updated
- 2026-05-26
- Certified
- 2026-05-26
Frequently asked questions
- What is M. Ko and A. Ko, PLLC's NPI number?
- M. Ko and A. Ko, PLLC's National Provider Identifier (NPI) is 1275298937, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is M. Ko and A. Ko, PLLC?
- M. Ko and A. Ko, PLLC is classified in the NPPES registry as Periodontics (Dental Providers).
- Where is M. Ko and A. Ko, PLLC located?
- M. Ko and A. Ko, PLLC's practice location on file with NPPES is 12826 Se 40th Ln Ste 100, Bellevue, WA 98006-5266.
- What is M. Ko and A. Ko, PLLC's phone number?
- The practice phone number listed in the NPPES registry for M. Ko and A. Ko, PLLC is (425) 877-1423.
- Who is the authorized official for M. Ko and A. Ko, PLLC?
- The authorized official listed on M. Ko and A. Ko, PLLC's NPPES record is Michelle Ko, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is M. Ko and A. Ko, PLLC's NPI active?
- Yes — M. Ko and A. Ko, PLLC's NPI (1275298937) is active in the NPPES registry as of the last update on 2026-05-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.