Doctor profile · Federal record

Dr. John Oh, MD

Urology Physician (CMS: Urology) · Walnut Creek, CA

  • NPI 1649358730
  • Accepts Medicare
  • 29 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1425 S Main St
Walnut Creek, CA 945965318
(925) 295-4000
Mailing address
1800 Harrison St Fl 7
Oakland, CA 946123466

Credentials & registration

NPPES · NUCC
NPI registered
November 2006 — 20 yrs on file
Profile last updated
December 9, 2021
Year of graduation
1997 — 29 yrs since
Specialty taxonomy
208800000X — NUCC code
State license (1)
California #A83004
Medicaid
CA #00A830040

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1649358730. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$128
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
ShockWave Medical, INC 1 $127.74

By nature of payment

Food and Beverage
$128

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,157
Patients
490
Total drug cost
$77,541
Drug Type Claims Patients Total cost
Tamsulosin Hcl Generic 332 145 $6,350
Finasteride Generic 331 114 $5,158
Terazosin Hcl Generic 165 51 $8,429
Myrbetriq (Mirabegron) Brand 79 21 $52,632
Trospium Chloride Generic 75 31 $3,576
Cephalexin Generic 63 47 $469
Ciprofloxacin Hcl Generic 39 36 $264
Tramadol Hcl Generic 26 25 $155
Sulfamethoxazole-Trimethoprim (Sulfamethoxazole/Trimethoprim) Brand 22 20 $141
Tadalafil Generic 14 0 $250

Frequently asked questions

Auto-generated from federal data
What is Dr. John Oh's medical specialty?
Dr. John Oh practices Urology Physician in Walnut Creek, CA.
Where does Dr. John Oh practice?
Dr. John Oh practices at 1425 S Main St, Walnut Creek, CA 945965318. Office phone: 9252954000.
What is Dr. John Oh's NPI?
Dr. John Oh's National Provider Identifier (NPI) is 1649358730, issued by NPPES.
Does Dr. John Oh accept Medicare assignment?
Yes. Dr. John Oh accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.