Doctor profile · Federal record

Dr. Long Duong, M.D.

Family Medicine Physician (CMS: Family Practice) · Santa Ana, CA

  • NPI 1538257241
  • Accepts Medicare
  • 27 yrs in practice
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
2708 Westminster Ave Ste 110
Santa Ana, CA 927062192
(714) 554-7350
fax (714) 554-7481

Credentials & registration

NPPES · NUCC
NPI registered
October 2006 — 20 yrs on file
Profile last updated
August 2, 2022
Year of graduation
1999 — 27 yrs since
Specialty taxonomy
207Q00000X — NUCC code
State license (1)
California #A74045
Medicaid
CA #00A740450

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1538257241. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
42
Distinct HCPCS
1
Medicare allowed
$5,844
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 42 12 $139

In context: peer comparison

Among 15 peers in this city , average services per provider: 105. This provider delivers 0.4× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$333
Transactions
13
Manufacturers
5
Payer (manufacturer) Industry Txns Amount
ViiV Healthcare Company 5 $138.43
Gilead Sciences, Inc. 5 $129.55
Dexcom, Inc. 1 $25.85
Novo Nordisk Inc 1 $22.50
Phathom Pharmaceuticals, Inc. 1 $16.75

By nature of payment

Food and Beverage
$333

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
397
Patients
58
Total drug cost
$44,988
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 56 17 $1,234
Amlodipine Besylate Generic 50 15 $874
Metformin Hcl Generic 44 14 $830
Rosuvastatin Calcium Generic 35 0 $989
Lisinopril Generic 31 12 $407
Losartan Potassium Generic 30 0 $657
Alendronate Sodium Generic 26 0 $503
Hydrochlorothiazide Generic 20 0 $180
Januvia (Sitagliptin Phosphate) Brand 19 0 $17,122
Gabapentin Generic 15 0 $337

Frequently asked questions

Auto-generated from federal data
What is Dr. Long Duong's medical specialty?
Dr. Long Duong practices Family Medicine Physician in Santa Ana, CA.
Where does Dr. Long Duong practice?
Dr. Long Duong practices at 2708 Westminster Ave Ste 110, Santa Ana, CA 927062192. Office phone: 7145547350.
What is Dr. Long Duong's NPI?
Dr. Long Duong's National Provider Identifier (NPI) is 1538257241, issued by NPPES.
Does Dr. Long Duong accept Medicare assignment?
Yes. Dr. Long Duong accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Long Duong commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.