Internal Medicine · Fountain Valley, CA
NPI
1457329179
Since 2006
Specialty
Internal Medicine
Code 207R00000X
Group practices
2
Medicare group memberships
Hospitals
0
Hospital affiliations
16040 Harbor Blvd, Ste. G
Fountain Valley, CA, 92708
Phone (714) 531-7930
Groups this clinician bills Medicare through
Medicare paid, 2024
$1.4M
51,940 services
Medicare patients, 2024
656
Average age 76
Drug cost, 2024
$2.6M
28,057 prescriptions
Company payments, 2025
$340
From 5 companies
Procedures and visits billed to Original Medicare, 2024
In 2024, the most common Medicare service billed by Hoang T Nguyen was code J7320 (hyaluronan or derivitive, genvisc 850, for intra-articular injection, 1 mg), 28,651 times for 104 patients. In total Hoang T Nguyen billed 51,940 services in 61 codes, and Medicare paid $1.4M.
Official US government data: the national provider registry and Medicare enrollment records, linked by NPI. Last update of this record: 2018-10-05.
| Code |
|---|
| Setting |
|---|
| Services |
|---|
| Patients |
|---|
| Paid per service |
|---|
| Medicare paid |
|---|
| J7320 Hyaluronan or derivitive, genvisc 850, for intra-articular injection, 1 mg | Office | 28,651 | 104 | $3.99 | $114K |
| 99214 Office E&M - Established | Office | 3,410 | 572 | $79.66 | $272K |
| 97112 PT Treatment | Office | 2,611 | 156 | $24.93 | $65K |
| Q9967 Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml | Office | 1,838 | 104 | $0.10 | $178 |
| 97140 PT Treatment | Office | 1,702 | 156 | $16.57 | $28K |
| 97110 PT Treatment | Office | 1,701 | 156 | $17.86 | $30K |
| 73580 X-ray - Lower Extremity | Office | 1,139 | 104 | $94.81 | $108K |
| 77002 Imaging - Miscellaneous | Office | 1,139 | 104 | $101.08 | $115K |
| 27369 Contrast Agent | Office | 1,130 | 104 | $158.06 | $179K |
| 20610 Joint Injection | Office | 1,128 | 104 | $26.83 | $30K |
| 99458 E&M - Miscellaneous | Office | 1,098 | 59 | $30.29 | $33K |
| 99212 Office E&M - Established | Office | 889 | 79 | $46.65 | $41K |
| 36415 Venipuncture Blood Collection | Office | 738 | 418 | $8.65 | $6,384 |
| 99454 E&M - Miscellaneous | Office | 556 | 59 | $40.35 | $22K |
| 99457 E&M - Miscellaneous | Office | 553 | 59 | $39.15 | $22K |
By year: 2022 $995K for 22,961 services; 2023 $1.5M for 51,430 services; 2024 $1.4M for 51,940 services.
Lab tests billed to Medicare, 2024
| Test code | Tests | Patients | Paid per test | Medicare paid |
|---|---|---|---|---|
| 36415 Venipuncture Blood Collection | 738 | 418 | $8.65 | $6,384 |
Medicare prescription drug claims, 2024
In 2024, the drug Hoang T Nguyen prescribed most often to Medicare patients was Levocetirizine Dihydrochloride, with 1,394 prescriptions and refills. In total Hoang T Nguyen wrote 28,057 Medicare prescriptions that cost $2.6M.
| Drug | Claims | 30-day fills | Patients | Cost |
|---|---|---|---|---|
| Levocetirizine Dihydrochloride Generic | 1,394 | 3,892 | 535 | $19K |
| Montelukast Sodium Generic | 1,258 | 3,538 | 484 | $12K |
| Atorvastatin Calcium Generic | 1,105 | 3,159 | 349 | $8,706 |
| Rosuvastatin Calcium Generic | 1,101 | 3,148 | 336 | $12K |
| Amlodipine Besylate Generic | 1,050 | 2,939 | 320 | $4,051 |
| Losartan Potassium Generic | 1,014 | 2,968 | 305 | $7,947 |
| Gabapentin Generic | 940 | 1,179 | 424 | $4,195 |
| Metformin Hcl Generic | 842 | 2,331 | 241 | $5,108 |
| Metoprolol Succinate Generic | 795 | 2,261 | 246 | $10K |
| Olmesartan Medoxomil Generic | 732 | 2,112 | 231 | $11K |
| Celecoxib Generic | 582 | 609 | 314 | $9,483 |
| Tamsulosin Hcl Generic | 502 | 1,341 | 167 | $4,999 |
| Fluticasone Propionate Generic | 482 | 849 | 191 | $6,659 |
| Baclofen Generic | 465 | 469 | 294 | $2,426 |
| Clopidogrel Clopidogrel Bisulfate | 408 | 1,115 | 114 | $3,312 |
Brand drugs: 3,338 claims; generic drugs: 24,308 claims; opioid claims: 63.
Money and other things of value reported by the companies
In 2025, drug and medical device companies paid Hoang T Nguyen $340 ($340 in general payments such as food, travel and fees) from 5 companies. The largest payer was Abiomed with $182.
Official US government data on Original Medicare services, Medicare prescription drug plans and the payments drug and device companies must report. Services with fewer than 11 patients and drugs with fewer than 11 claims are not published. Procedure codes are shown by number with their public category.