Doctor profile · Federal record

Dr. Hong Duong, MD

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

  • NPI 1275561417
  • 31 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
15581 Brookhurst St
Westminster, CA 926837554
(714) 467-9923
fax (714) 975-9794

Credentials & registration

NPPES · NUCC
NPI registered
June 2006 — 20 yrs on file
Profile last updated
April 27, 2021
Year of graduation
1995 — 31 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
California #A65844

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1275561417. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,430
Distinct HCPCS
7
Medicare allowed
$189,804
HCPCS Description Services Patients Avg allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 860 114 $125
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 139 118 $182
99214 Established patient office or other outpatient visit, 30-39 minutes 135 39 $139
99239 Hospital discharge day management, more than 30 minutes 134 119 $121
99309 Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes 105 24 $114
99310 Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes 36 21 $163
99306 Initial nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes 21 19 $193

In context: peer comparison

Among 13 peers in this city , average services per provider: 331. This provider delivers 4.3× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$125
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
E.R. Squibb & Sons, L.L.C. 1 $125.00

By nature of payment

Food and Beverage
$125

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
926
Patients
204
Total drug cost
$9,150
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 126 30 $1,429
Amlodipine Besylate Generic 118 33 $663
Pantoprazole Sodium Generic 110 34 $1,015
Metformin Hcl Generic 82 17 $628
Tamsulosin Hcl Generic 61 15 $902
Losartan Potassium Generic 58 19 $723
Meloxicam Generic 56 21 $239
Simvastatin Generic 54 11 $536
Finasteride Generic 43 0 $335
Atenolol Generic 40 0 $494

Frequently asked questions

Auto-generated from federal data
What is Dr. Hong Duong's medical specialty?
Dr. Hong Duong practices Internal Medicine Physician in Westminster, CA.
Where does Dr. Hong Duong practice?
Dr. Hong Duong practices at 15581 Brookhurst St, Westminster, CA 926837554. Office phone: 7144679923.
What is Dr. Hong Duong's NPI?
Dr. Hong Duong's National Provider Identifier (NPI) is 1275561417, issued by NPPES.
Does Dr. Hong Duong accept Medicare assignment?
Dr. Hong Duong does not accept Medicare assignment for all services. Patients may be billed amounts beyond Medicare-allowed charges.
What procedures does Dr. Hong Duong commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Initial hospital care with moderate level of medical decision making (HCPCS 99223); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.