Doctor profile · Federal record

Dr. Lydia Hsu, M.D.

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

  • NPI 1356554679
  • Accepts Medicare
  • 21 yrs in practice
  • Female
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
900 Blake Wilbur Dr, 3Rd Floor
Palo Alto, CA 943042201
(650) 725-5743

Credentials & registration

NPPES · NUCC
NPI registered
May 2007 — 19 yrs on file
Profile last updated
February 11, 2022
Year of graduation
2005 — 21 yrs since
Specialty taxonomy
207W00000X — NUCC code
State license (1)
California #A108514

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1356554679. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$61
Transactions
2
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Alcon Vision LLC 2 $61.18

By nature of payment

Food and Beverage
$61

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
2,835
Patients
1,176
Total drug cost
$139,907
Drug Type Claims Patients Total cost
Latanoprost Generic 787 279 $11,077
Dorzolamide-Timolol (Dorzolamide Hcl/Timolol Maleat) Brand 491 157 $12,561
Brimonidine Tartrate Generic 333 127 $5,049
Timolol Maleate Generic 260 92 $4,112
Prednisolone Acetate Generic 246 152 $12,173
Dorzolamide Hcl Generic 134 50 $3,331
Polymyxin B Sul-Trimethoprim (Polymyxin B Sulf/Trimethoprim) Brand 107 91 $1,217
Bimatoprost Generic 78 23 $11,406
Pilocarpine Hcl Generic 74 26 $3,450
Ofloxacin Generic 72 55 $1,093

Frequently asked questions

Auto-generated from federal data
What is Dr. Lydia Hsu's medical specialty?
Dr. Lydia Hsu practices Ophthalmology Physician in Palo Alto, CA.
Where does Dr. Lydia Hsu practice?
Dr. Lydia Hsu practices at 900 Blake Wilbur Dr, Palo Alto, CA 943042201. Office phone: 6507255743.
What is Dr. Lydia Hsu's NPI?
Dr. Lydia Hsu's National Provider Identifier (NPI) is 1356554679, issued by NPPES.
Does Dr. Lydia Hsu accept Medicare assignment?
Yes. Dr. Lydia Hsu accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.