Doctor profile · Federal record

Dr. James Yoon, M.D.

Family Medicine Physician (CMS: Family Practice) · Brea, CA

  • NPI 1083041503
  • Accepts Medicare
  • 29 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 6 locations .

NPPES Updated May 11, 2026
Primary practice
955 W Imperial Hwy Ste 200
Brea, CA 928213812
(714) 449-6900
fax (714) 449-6971
Additional location
2212 E 4Th St Ste 103
Santa Ana, CA 927053871
(714) 571-7700
Additional location
2251 N Harbor Blvd
Fullerton, CA 928352601
(714) 449-6230
Show 3 more locations
Additional location
2501 E Chapman Ave Ste 101
Orange, CA 928693204
(714) 628-3300
Additional location
4300 Rose Dr
Yorba Linda, CA 928862026
(714) 528-9911
Additional location
6261 Stanton Ave
Buena Park, CA 906212436
(714) 739-4325
fax (714) 739-4076

Credentials & registration

NPPES · NUCC
NPI registered
September 2013 — 13 yrs on file
Profile last updated
November 11, 2021
Year of graduation
1997 — 29 yrs since
Specialty taxonomy
207Q00000X — NUCC code
State license (1)
California #A67732

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1083041503. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
608
Distinct HCPCS
8
Medicare allowed
$65,600
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 209 129 $139
99213 Established patient office or other outpatient visit, 20-29 minutes 154 104 $99
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 103 103 $140
36415 Insertion of needle into vein for collection of blood sample 49 38 $8
G0008 Administration of influenza virus vaccine 34 34 $29
90694 Influenza vaccine, quadrivalent inactivated, 0.5 ml dosage 33 33 $76
99215 Established patient office or other outpatient visit, 40-54 minutes 14 13 $194
71046 X-ray of chest, 2 views 12 12 $28

In context: peer comparison

Among 14 peers in Brea Family Medicine Physician, average services per provider: 77. This provider delivers 7.9× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$138
Transactions
6
Manufacturers
5
Payer (manufacturer) Industry Txns Amount
Novo Nordisk INC 2 $45.65
Merck Sharp & Dohme LLC 1 $34.00
GlaxoSmithKline, LLC. 1 $23.86
Sanofi Pasteur INC. 1 $19.72
Lilly USA, LLC 1 $14.65

By nature of payment

Food and Beverage
$138

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
5,103
Patients
1,472
Total drug cost
$246,922
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 1,407 415 $23,990
Losartan Potassium Generic 643 179 $12,702
Amlodipine Besylate Generic 579 165 $5,829
Metformin Hcl Generic 371 101 $4,693
Levothyroxine Sodium Generic 315 82 $7,155
Tamsulosin Hcl Generic 283 86 $6,786
Simvastatin Generic 246 66 $3,363
Rosuvastatin Calcium Generic 229 70 $9,445
Alendronate Sodium Generic 196 61 $2,613
Lisinopril Generic 175 45 $1,641

Frequently asked questions

Auto-generated from federal data
What is Dr. James Yoon's medical specialty?
Dr. James Yoon practices Family Medicine Physician in Brea, CA.
Where does Dr. James Yoon practice?
Dr. James Yoon practices at 955 W Imperial Hwy Ste 200, Brea, CA 928213812. Office phone: 7144496900.
What is Dr. James Yoon's NPI?
Dr. James Yoon's National Provider Identifier (NPI) is 1083041503, issued by NPPES.
Does Dr. James Yoon accept Medicare assignment?
Yes. Dr. James Yoon accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. James Yoon commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439). Source: CMS Medicare Physician & Other Practitioners file.