Doctor profile · Federal record

Dr. John Wong, MD

Internal Medicine Physician · Torrance, CA

  • NPI 1659336402
  • 20 yrs on file
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
19601 Mariner Ave
Torrance, CA 905031647
(310) 214-0811
Mailing address
393 E Walnut St, Phr Grp Prov Enroll Unit 3Rd Fl
Pasadena, CA 911880001

Credentials & registration

NPPES · NUCC
NPI registered
April 2006 — 20 yrs on file
Profile last updated
December 1, 2021
Specialty taxonomy
207R00000X — NUCC code
State license (1)
California #A51406

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1659336402. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$31
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Dendreon Pharmaceuticals LLC 1 $30.59

By nature of payment

Food and Beverage
$31

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,164
Patients
432
Total drug cost
$35,039
Drug Type Claims Patients Total cost
Humulin R (Insulin Regular, Human) Brand 114 39 $9,401
Trazodone Hcl Generic 99 38 $2,315
Atorvastatin Calcium Generic 90 40 $2,488
Donepezil Hcl Generic 87 34 $1,637
Escitalopram Oxalate Generic 85 31 $1,815
Levothyroxine Sodium Generic 83 26 $1,440
Memantine Hcl Generic 79 23 $2,179
Mirtazapine Generic 76 27 $3,129
Losartan Potassium Generic 71 21 $2,010
Metformin Hcl Generic 69 20 $2,094

Frequently asked questions

Auto-generated from federal data
What is Dr. John Wong's medical specialty?
Dr. John Wong practices Internal Medicine Physician in Torrance, CA.
Where does Dr. John Wong practice?
Dr. John Wong practices at 19601 Mariner Ave, Torrance, CA 905031647. Office phone: 3102140811.
What is Dr. John Wong's NPI?
Dr. John Wong's National Provider Identifier (NPI) is 1659336402, issued by NPPES.