Doctor profile · Federal record

Dr. Donghyun Koo

Dentist · Seattle, WA

  • NPI 1366875957
  • 13 yrs on file
  • Male
  • Solo practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
9776 Holman RD Nw Ste 110
Seattle, WA 981172000
(206) 783-3000
Additional location
3900 E Valley RD Ste 203
Renton, WA 980574954
(425) 264-0044
Mailing address
8476 Simonds Street Ste 5700
Fort George G. Meade, MD 207555700

Credentials & registration

NPPES · NUCC
NPI registered
August 2013 — 13 yrs on file
Profile last updated
January 27, 2025
Specialty taxonomy
122300000X — NUCC code
State license (1)
Washington #DE60822196

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1366875957. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$23
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
PATTERSON COMPANIES, INC. 1 $23.06

By nature of payment

Food and Beverage
$23

Frequently asked questions

Auto-generated from federal data
What is Dr. Donghyun Koo's medical specialty?
Dr. Donghyun Koo practices Dentist in Seattle, WA.
Where does Dr. Donghyun Koo practice?
Dr. Donghyun Koo practices at 9776 Holman RD Nw Ste 110, Seattle, WA 981172000. Office phone: 2067833000.
What is Dr. Donghyun Koo's NPI?
Dr. Donghyun Koo's National Provider Identifier (NPI) is 1366875957, issued by NPPES.