Doctor profile · Federal record

Dr. Chuck Chan, DO

Emergency Medicine Physician (CMS: Emergency Medicine) · Emergency Medicine Physician · Emergency Medicine Physician · Orange, CA

  • NPI 1841877222
  • Accepts Medicare
  • 5 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
101 the City Dr S
Orange, CA 928683201
(714) 456-8888
Additional location
1740 W Taylor St
Chicago, IL 606127232
(866) 600-2273
Mailing address
808 S Wood St Rm 469A
Chicago, IL 606127300

Credentials & registration

NPPES · NUCC
NPI registered
March 2021 — 5 yrs on file
Profile last updated
June 3, 2025
Year of graduation
2021 — 5 yrs since
Specialty taxonomy
207P00000X — NUCC code
State licenses (3)
California #20A23675 · Illinois #125.078109 · Illinois #036.167218

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1841877222. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$24
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Genentech USA, Inc. 1 $24.16

By nature of payment

Food and Beverage
$24

Frequently asked questions

Auto-generated from federal data
What is Dr. Chuck Chan's medical specialty?
Dr. Chuck Chan practices Emergency Medicine Physician in Orange, CA.
Where does Dr. Chuck Chan practice?
Dr. Chuck Chan practices at 101 the City Dr S, Orange, CA 928683201. Office phone: 7144568888.
What is Dr. Chuck Chan's NPI?
Dr. Chuck Chan's National Provider Identifier (NPI) is 1841877222, issued by NPPES.
Does Dr. Chuck Chan accept Medicare assignment?
Yes. Dr. Chuck Chan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.