Doctor profile · Federal record

Dr. Karen Chao, MD

Pediatric Hematology & Oncology Physician · Pediatrics Physician · Student in an Organized Health Care Education/Training Program · Palo Alto, CA

  • NPI 1194187104
  • 10 yrs on file
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
725 Welch RD
Palo Alto, CA 943041601
(650) 497-8000
Additional location
999 N 92Nd St Ste 730
Milwaukee, WI 532264875
(414) 266-6800

Credentials & registration

NPPES · NUCC
NPI registered
March 2016 — 10 yrs on file
Profile last updated
April 16, 2024
Specialty taxonomy
2080P0207X — NUCC code
State license (1)
California #A180664

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1194187104. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$1,986
Transactions
16
Manufacturers
3
Payer (manufacturer) Industry Txns Amount
Adaptive Biotechnologies Corporation 14 $1,808.00
Y-mAbs Therapeutics, Inc. 1 $118.13
Amgen Inc. 1 $59.82

By nature of payment

Travel and Lodging
$1,199
Food and Beverage
$787

Frequently asked questions

Auto-generated from federal data
What is Dr. Karen Chao's medical specialty?
Dr. Karen Chao practices Pediatric Hematology & Oncology Physician in Palo Alto, CA.
Where does Dr. Karen Chao practice?
Dr. Karen Chao practices at 725 Welch RD, Palo Alto, CA 943041601. Office phone: 6504978000.
What is Dr. Karen Chao's NPI?
Dr. Karen Chao's National Provider Identifier (NPI) is 1194187104, issued by NPPES.