Doctor profile · Federal record

Dr. Hyun Don Yun, MD

Hematology & Oncology Physician · Internal Medicine Physician · Hematology (Internal Medicine) Physician · Hematology & Oncology Physician · Medical Oncology Physician · Riverside, CA

  • NPI 1508090473
  • 17 yrs on file
  • Licensed in 2 states
  • Male
  • Solo practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
4500 Brockton Ave Ste 107
Riverside, CA 925014006
(951) 276-2760
fax (951) 276-2960
Additional location
834 Sheridan St
Port Townsend, WA 983682443
(360) 344-3091
fax (360) 344-3082
Mailing address
11180 Warner Ave Ste 351
Fountain Valley, CA 927087516

Credentials & registration

NPPES · NUCC
NPI registered
May 2009 — 17 yrs on file
Profile last updated
January 6, 2025
Specialty taxonomy
207RH0003X — NUCC code
State licenses (2)
California #A172166 · Washington #MD61600189

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1508090473. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$1,199
Transactions
8
Manufacturers
4
Payer (manufacturer) Industry Txns Amount
AstraZeneca Pharmaceuticals LP 2 $1,050.00
BeiGene USA, Inc. 4 $95.22
Astellas Pharma US Inc 1 $28.83
Rigel Pharmaceuticals, Inc. 1 $24.64

By nature of payment

Consulting Fee
$1,050
Food and Beverage
$149

Frequently asked questions

Auto-generated from federal data
What is Dr. Hyun Don Yun's medical specialty?
Dr. Hyun Don Yun practices Hematology & Oncology Physician in Riverside, CA.
Where does Dr. Hyun Don Yun practice?
Dr. Hyun Don Yun practices at 4500 Brockton Ave Ste 107, Riverside, CA 925014006. Office phone: 9512762760.
What is Dr. Hyun Don Yun's NPI?
Dr. Hyun Don Yun's National Provider Identifier (NPI) is 1508090473, issued by NPPES.