Doctor profile · Federal record

Dr. Calvin Zhao, MD

Urology Physician · Stanford, CA

  • NPI 1134700800
  • 5 yrs on file
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
300 Pasteur Dr
Stanford, CA 943052200
(650) 723-4000

Credentials & registration

NPPES · NUCC
NPI registered
April 2021 — 5 yrs on file
Profile last updated
April 28, 2025
Specialty taxonomy
208800000X — NUCC code
State license (1)
California #A190964

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1134700800. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$189
Transactions
2
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Boston Scientific Corporation 1 $140.55
Medtronic, Inc. 1 $48.04

By nature of payment

Food and Beverage
$189

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
55
Patients
49
Total drug cost
$361
Drug Type Claims Patients Total cost
Oxycodone Hcl Generic 24 24 $50
Tamsulosin Hcl Generic 19 14 $177
Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) Brand 12 11 $134

Frequently asked questions

Auto-generated from federal data
What is Dr. Calvin Zhao's medical specialty?
Dr. Calvin Zhao practices Urology Physician in Stanford, CA.
Where does Dr. Calvin Zhao practice?
Dr. Calvin Zhao practices at 300 Pasteur Dr, Stanford, CA 943052200. Office phone: 6507234000.
What is Dr. Calvin Zhao's NPI?
Dr. Calvin Zhao's National Provider Identifier (NPI) is 1134700800, issued by NPPES.