Doctor profile · Federal record

Dr. Joseph Chao, M.D.

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

  • NPI 1285831057
  • MIPS 91.9 / 100 · 2023
  • 19 yrs on file
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1500 Duarte RD
Duarte, CA 910103012
(626) 471-9200
fax (626) 301-8233
Mailing address
Po Box 512185
Los Angeles, CA 900510185

Credentials & registration

NPPES · NUCC
NPI registered
June 2007 — 19 yrs on file
Profile last updated
November 18, 2020
Specialty taxonomy
207RX0202X — NUCC code
State license (1)
California #A94368

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1285831057. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$28
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Abbvie INC. 1 $28.23

By nature of payment

Food and Beverage
$28

Frequently asked questions

Auto-generated from federal data
What is Dr. Joseph Chao's medical specialty?
Dr. Joseph Chao practices Medical Oncology Physician in Duarte, CA.
Where does Dr. Joseph Chao practice?
Dr. Joseph Chao practices at 1500 Duarte RD, Duarte, CA 910103012. Office phone: 6264719200.
What is Dr. Joseph Chao's NPI?
Dr. Joseph Chao's National Provider Identifier (NPI) is 1285831057, issued by NPPES.