Doctor profile · Federal record

Dr. James Choi, MD

Surgery Physician (CMS: Surgical Oncology) · Walnut Creek, CA

  • NPI 1215016977
  • Accepts Medicare
  • 27 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) 295-4110

Credentials & registration

NPPES · NUCC
NPI registered
November 2006 — 20 yrs on file
Profile last updated
December 8, 2021
Year of graduation
1999 — 27 yrs since
Specialty taxonomy
208600000X — NUCC code
State license (1)
California #A78115
Medicaid
CA #00A781150

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1215016977. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$206
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Histosonics,INC. 1 $205.55

By nature of payment

Food and Beverage
$206

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
22
Patients
22
Total drug cost
$178
Drug Type Claims Patients Total cost
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 22 22 $178

Frequently asked questions

Auto-generated from federal data
What is Dr. James Choi's medical specialty?
Dr. James Choi practices Surgery Physician in Walnut Creek, CA.
Where does Dr. James Choi practice?
Dr. James Choi practices at 1425 S Main St, Walnut Creek, CA 945965318. Office phone: 9252954110.
What is Dr. James Choi's NPI?
Dr. James Choi's National Provider Identifier (NPI) is 1215016977, issued by NPPES.
Does Dr. James Choi accept Medicare assignment?
Yes. Dr. James Choi accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.