Donghyun Koo
NPI 1366875957 · Dentist · Seattle, WA
Donghyun Koo is a Dentist provider in Seattle, WA (NPI 1366875957).
Provider details
- NPI number
- 1366875957
- Entity type
- Individual
- Primary specialty
- DentistDental Providers
- Sex
- Male
- Sole proprietor
- Yes
- License
- DE60822196 (WA)
Specialties & taxonomies
Dental Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
12 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$23 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 3900 E Valley Rd Ste 203Renton, WA 98057-4954Phone: (425) 264-0044
Registry dates
- Enumerated
- 2013-08-19
- Last updated
- 2025-01-27
- Certified
- 2025-01-27
Frequently asked questions
- What is Donghyun Koo's NPI number?
- Donghyun Koo's National Provider Identifier (NPI) is 1366875957, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Donghyun Koo's specialty?
- Donghyun Koo is listed in the NPPES registry with a primary specialty of Dentist (Dental Providers).
- Where is Donghyun Koo located?
- Donghyun Koo's practice location on file with NPPES is 9776 Holman Rd Nw Ste 110, Seattle, WA 98117-2000.
- What is Donghyun Koo's phone number?
- The practice phone number listed in the NPPES registry for Donghyun Koo is (206) 783-3000.
- Is Donghyun Koo's NPI active?
- Yes — Donghyun Koo's NPI (1366875957) is active in the NPPES registry as of the last update on 2025-01-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.