Doctor profile · Federal record

Dr. John Lee, MD

Internal Medicine Physician (CMS: Internal Medicine) · Fullerton, CA

  • NPI 1598721284
  • Accepts Medicare
  • MIPS 92.0 / 100 · 2023
  • 36 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
400 N. Euclid St
Fullerton, CA 917481625
(626) 964-3326
fax (626) 964-3346
Mailing address
400 N Euclid St
Fullerton, CA 928321625

Credentials & registration

NPPES · NUCC
NPI registered
April 2006 — 20 yrs on file
Profile last updated
October 29, 2010
Year of graduation
1990 — 36 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
California #A66137

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1598721284. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
3,563
Distinct HCPCS
10
Medicare allowed
$334,209
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 718 284 $141
36415 Insertion of needle into vein for collection of blood sample 668 290 $8
99213 Established patient office or other outpatient visit, 20-29 minutes 562 242 $100
99457 Management using the results of remote vital sign monitoring per calendar month, first 20 minutes 246 37 $54
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 189 189 $144
99497 Advance care planning, first 30 minutes 188 188 $90
99454 Remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days 179 32 $59
93000 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 119 109 $15
76700 Complete ultrasound scan of abdomen 85 85 $135
93880 Ultrasound of both sides of head and neck blood flow 85 85 $179

In context: peer comparison

Among 14 peers in this city , average services per provider: 146. This provider delivers 24× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$156
Transactions
2
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Dexcom, Inc. 1 $134.07
Novartis Pharmaceuticals Corporation 1 $22.20

By nature of payment

Food and Beverage
$156

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
9,268
Patients
2,736
Total drug cost
$736,910
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 2,425 695 $42,581
Losartan Potassium Generic 1,233 320 $22,524
Amlodipine Besylate Generic 1,104 288 $13,794
Rosuvastatin Calcium Generic 538 135 $18,544
Alendronate Sodium Generic 536 179 $8,407
Pantoprazole Sodium Generic 432 127 $6,445
Metformin Hcl Generic 428 124 $7,451
Levothyroxine Sodium Generic 391 88 $8,150
Tamsulosin Hcl Generic 372 97 $10,169
Omeprazole Generic 331 134 $5,078

Frequently asked questions

Auto-generated from federal data
What is Dr. John Lee's medical specialty?
Dr. John Lee practices Internal Medicine Physician in Fullerton, CA.
Where does Dr. John Lee practice?
Dr. John Lee practices at 400 N. Euclid St, Fullerton, CA 917481625. Office phone: 6269643326.
What is Dr. John Lee's NPI?
Dr. John Lee's National Provider Identifier (NPI) is 1598721284, issued by NPPES.
Does Dr. John Lee accept Medicare assignment?
Yes. Dr. John Lee accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. John Lee commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Insertion of needle into vein for collection of blood sample (HCPCS 36415); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.