Doctor profile · Federal record

Dr. John Tan, MD

Pediatric Hematology & Oncology Physician · Pediatrics Physician · Pediatrics Physician · Palo Alto, CA

  • NPI 1568680023
  • 19 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
725 Welch RD
Palo Alto, CA 943041601
(650) 497-8000
Additional location
300 Pasteur Dr
Stanford, CA 943052200
(650) 723-4000
Mailing address
300 Pasteur Dr
Stanford, CA 943052200

Credentials & registration

NPPES · NUCC
NPI registered
April 2007 — 19 yrs on file
Profile last updated
April 16, 2024
Specialty taxonomy
2080P0207X — NUCC code
State licenses (2)
California #A103406 · Rhode Island #LP00201

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1568680023. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$111
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Stemline Therapeutics Inc. 1 $110.53

By nature of payment

Food and Beverage
$111

Frequently asked questions

Auto-generated from federal data
What is Dr. John Tan's medical specialty?
Dr. John Tan practices Pediatric Hematology & Oncology Physician in Palo Alto, CA.
Where does Dr. John Tan practice?
Dr. John Tan practices at 725 Welch RD, Palo Alto, CA 943041601. Office phone: 6504978000.
What is Dr. John Tan's NPI?
Dr. John Tan's National Provider Identifier (NPI) is 1568680023, issued by NPPES.