Doctor profile · Federal record

Dr. Ryan Ou

Surgery Physician (CMS: General Surgery) · Redwood City, CA

  • NPI 1457855074
  • Accepts Medicare
  • 8 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
905 Maple St Dept 470
Redwood City, CA 940632057
(510) 213-9830
Additional location
365 Hawthorne Ave
Oakland, CA 946093107
(510) 465-5523

Credentials & registration

NPPES · NUCC
NPI registered
March 2018 — 8 yrs on file
Profile last updated
August 19, 2024
Year of graduation
2018 — 8 yrs since
Specialty taxonomy
208600000X — NUCC code
State license (1)
California #A163824

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1457855074. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$3,535
Transactions
32
Manufacturers
6
Payer (manufacturer) Industry Txns Amount
Medtronic, INC. 19 $2,055.80
Intuitive Surgical, INC. 7 $955.71
Tela Bio, INC. 1 $251.30
W. L. Gore & Associates, INC. 1 $150.80
Teleflex LLC 2 $81.79
Medical Device Business Services, INC. 2 $39.16

By nature of payment

Food and Beverage
$2,124
Travel and Lodging
$1,402
Gift
$9

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
49
Patients
48
Total drug cost
$199
Drug Type Claims Patients Total cost
Oxycodone Hcl Generic 49 48 $199

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Ryan Ou's medical specialty?
Dr. Ryan Ou practices Surgery Physician in Redwood City, CA.
Where does Dr. Ryan Ou practice?
Dr. Ryan Ou practices at 905 Maple St Dept 470, Redwood City, CA 940632057. Office phone: 5102139830.
What is Dr. Ryan Ou's NPI?
Dr. Ryan Ou's National Provider Identifier (NPI) is 1457855074, issued by NPPES.
Does Dr. Ryan Ou accept Medicare assignment?
Yes. Dr. Ryan Ou accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.