Doctor profile · Federal record

Dr. Thomas Hsu, M.D.

Urology Physician (CMS: Urology) · Palo Alto, CA

  • NPI 1851433833
  • Accepts Medicare
  • 31 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
875 Blake Wilbur Dr, Stanford Cancer Center
Palo Alto, CA 943042205
(659) 725-5544

Credentials & registration

NPPES · NUCC
NPI registered
February 2007 — 19 yrs on file
Profile last updated
December 13, 2021
Year of graduation
1995 — 31 yrs since
Specialty taxonomy
208800000X — NUCC code
State license (1)
California #A78861
Medicaid
CA #00A788610

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1851433833. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$125
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Gilead Sciences, INC. 1 $124.97

By nature of payment

Food and Beverage
$125

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
548
Patients
303
Total drug cost
$10,018
Drug Type Claims Patients Total cost
Finasteride Generic 183 77 $2,787
Tamsulosin Hcl Generic 147 70 $2,692
Ciprofloxacin Hcl Generic 58 51 $435
Oxybutynin Chloride Generic 42 24 $793
Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) Brand 24 21 $456
Cephalexin Generic 19 17 $211
Trospium Chloride Generic 18 13 $1,276
Sulfamethoxazole-Trimethoprim (Sulfamethoxazole/Trimethoprim) Brand 17 15 $113
Oxycodone Hcl Generic 15 15 $94
Terazosin Hcl Generic 14 0 $975

Frequently asked questions

Auto-generated from federal data
What is Dr. Thomas Hsu's medical specialty?
Dr. Thomas Hsu practices Urology Physician in Palo Alto, CA.
Where does Dr. Thomas Hsu practice?
Dr. Thomas Hsu practices at 875 Blake Wilbur Dr, Palo Alto, CA 943042205. Office phone: 6597255544.
What is Dr. Thomas Hsu's NPI?
Dr. Thomas Hsu's National Provider Identifier (NPI) is 1851433833, issued by NPPES.
Does Dr. Thomas Hsu accept Medicare assignment?
Yes. Dr. Thomas Hsu accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.