What is Kathryn Onishi's NPI number?

Kathryn Onishi's National Provider Identifier (NPI) is 1407079841, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Kathryn Onishi's specialty?

Kathryn Onishi is listed in the NPPES registry with a primary specialty of General Practice Dentistry (Dental Providers).

Where is Kathryn Onishi located?

Kathryn Onishi's practice location on file with NPPES is 9800 Harbour Place, Mukilteo, WA 98275-4749.

What is Kathryn Onishi's phone number?

The practice phone number listed in the NPPES registry for Kathryn Onishi is (425) 493-8111.

Is Kathryn Onishi's NPI active?

Yes — Kathryn Onishi's NPI (1407079841) is active in the NPPES registry as of the last update on 2007-07-08.

IndividualActive

Kathryn Onishi, DDS

NPI 1407079841 · General Practice Dentistry · Mukilteo, WA

Kathryn Onishi, DDS is a General Practice Dentistry provider in Mukilteo, WA (NPI 1407079841).

Provider details

NPI number: 1407079841
Entity type: Individual
Primary specialty: General Practice DentistryDental Providers
Credential: DDS
Sex: Female
Sole proprietor: No
License: 00006493 (WA)

Practice location

9800 Harbour Place

Suite 203

Mukilteo, WA 98275-4749

Phone: (425) 493-8111

Fax: (425) 493-1996

Street-level locationGet directions

More WA providers

Mailing address

9800 Harbour Place

Mukilteo, WA 98275-4749

Specialties & taxonomies

General Practice DentistryPrimary1223G0001XLicense 00006493 (WA)
Dental Providers

Profile Score

Detailed profile(90/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
19 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.

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 1 distinct drug on file.

Drug	Part D claims (2024)	Beneficiaries
Amoxicillin	19	12

Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do not include cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.

Enumerated: 2007-04-11
Last updated: 2007-07-08

Frequently asked questions

What is Kathryn Onishi's NPI number?: Kathryn Onishi's National Provider Identifier (NPI) is 1407079841, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Kathryn Onishi's specialty?: Kathryn Onishi is listed in the NPPES registry with a primary specialty of General Practice Dentistry (Dental Providers).
Where is Kathryn Onishi located?: Kathryn Onishi's practice location on file with NPPES is 9800 Harbour Place, Mukilteo, WA 98275-4749.
What is Kathryn Onishi's phone number?: The practice phone number listed in the NPPES registry for Kathryn Onishi is (425) 493-8111.
Is Kathryn Onishi's NPI active?: Yes — Kathryn Onishi's NPI (1407079841) is active in the NPPES registry as of the last update on 2007-07-08.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.

Provider details

Practice location

Mailing address

Specialties & taxonomies

Profile Score

What this provider prescribes (Medicare Part D)

Registry dates

Frequently asked questions

Specialties & taxonomies

Profile Score

What this provider prescribes (Medicare Part D)

Frequently asked questions