Doctor profile · Federal record

Dr. Diane Chau, MD

Internal Medicine Physician · Internal Medicine Physician · Long Beach, CA

  • NPI 1780609834
  • 20 yrs on file
  • Licensed in 2 states
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
200 Oceangate Ste 100
Long Beach, CA 908024317
(888) 562-5442
Additional location
10666 N Torrey Pines RD
La Jolla, CA 920371027
(858) 554-6158

Credentials & registration

NPPES · NUCC
NPI registered
July 2006 — 20 yrs on file
Profile last updated
August 24, 2023
Specialty taxonomy
207R00000X — NUCC code
State licenses (2)
California #A65089 · Hawaii #9807

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1780609834. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$124
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Sanofi-Aventis U.S. LLC 1 $124.16

By nature of payment

Food and Beverage
$124

Frequently asked questions

Auto-generated from federal data
What is Dr. Diane Chau's medical specialty?
Dr. Diane Chau practices Internal Medicine Physician in Long Beach, CA.
Where does Dr. Diane Chau practice?
Dr. Diane Chau practices at 200 Oceangate Ste 100, Long Beach, CA 908024317. Office phone: 8885625442.
What is Dr. Diane Chau's NPI?
Dr. Diane Chau's National Provider Identifier (NPI) is 1780609834, issued by NPPES.