Doctor profile · Federal record

Dr. Patrick Tso, MD

Ophthalmology Physician (CMS: Ophthalmology) · Fremont, CA

  • NPI 1932284601
  • Accepts Medicare
  • 34 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
39400 Paseo Padre Pkwy
Fremont, CA 945382310
(510) 795-3000
Mailing address
1800 Harrison St Fl 7
Oakland, CA 946123466

Credentials & registration

NPPES · NUCC
NPI registered
October 2006 — 20 yrs on file
Profile last updated
January 14, 2022
Year of graduation
1992 — 34 yrs since
Specialty taxonomy
207W00000X — NUCC code
State license (1)
California #G83697
Medicaid
CA #00G836970

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1932284601. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$48
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Carl Zeiss Meditec USA, Inc. 1 $47.78

By nature of payment

Food and Beverage
$48

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
2,899
Patients
1,392
Total drug cost
$169,966
Drug Type Claims Patients Total cost
Latanoprost Generic 795 336 $13,357
Brimonidine Tartrate Generic 399 156 $7,387
Prednisolone Acetate Generic 376 258 $19,486
Dorzolamide-Timolol (Dorzolamide Hcl/Timolol Maleat) Brand 279 100 $7,973
Timolol Maleate Generic 223 81 $4,926
Dorzolamide Hcl Generic 169 63 $5,231
Polymyxin B Sul-Trimethoprim (Polymyxin B Sulf/Trimethoprim) Brand 158 134 $1,829
Erythromycin (Erythromycin Base) Brand 134 90 $2,020
Cyclosporine Generic 83 26 $12,150
Diclofenac Sodium Generic 81 57 $1,602

Frequently asked questions

Auto-generated from federal data
What is Dr. Patrick Tso's medical specialty?
Dr. Patrick Tso practices Ophthalmology Physician in Fremont, CA.
Where does Dr. Patrick Tso practice?
Dr. Patrick Tso practices at 39400 Paseo Padre Pkwy, Fremont, CA 945382310. Office phone: 5107953000.
What is Dr. Patrick Tso's NPI?
Dr. Patrick Tso's National Provider Identifier (NPI) is 1932284601, issued by NPPES.
Does Dr. Patrick Tso accept Medicare assignment?
Yes. Dr. Patrick Tso accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.