Internal Medicine · Westminster, CA
NPI
1740217942
Since 2006
Specialty
Internal Medicine
Code 207R00000X
Group practices
3
Medicare group memberships
Hospitals
0
Hospital affiliations
10362 Bolsa Avenue, Bolsa Medical Group
Westminster, CA, 92683
Phone (714) 531-2091
Groups this clinician bills Medicare through
Medicare paid, 2024
$261K
5,871 services
Medicare patients, 2024
384
Average age 74
Drug cost, 2024
$2.2M
12,924 prescriptions
Company payments, 2025
$6,580
From 23 companies
Procedures and visits billed to Original Medicare, 2024
In 2024, the most common Medicare service billed by Tu Nguyen was code 99490 (chronic, principal, and transitional care management), 1,050 times for 103 patients. In total Tu Nguyen billed 5,871 services in 49 codes, and Medicare paid $261K.
| Code |
|---|
Official US government data: the national provider registry and Medicare enrollment records, linked by NPI. Last update of this record: 2011-12-12.
| Setting |
|---|
| Services |
|---|
| Patients |
|---|
| Paid per service |
|---|
| Medicare paid |
|---|
| 99490 Chronic, Principal, and Transitional Care Management | Office | 1,050 | 103 | $45.17 | $47K |
| 99212 Office E&M - Established | Office | 1,015 | 297 | $35.97 | $37K |
| 99457 E&M - Miscellaneous | Office | 851 | 191 | $41.78 | $36K |
| 99454 E&M - Miscellaneous | Office | 694 | 156 | $43.55 | $30K |
| 99458 E&M - Miscellaneous | Office | 682 | 157 | $33.14 | $23K |
| 99091 E&M - Miscellaneous | Office | 561 | 157 | $44.38 | $25K |
| 99453 E&M - Miscellaneous | Office | 132 | 132 | $17.26 | $2,279 |
| G0008 Administration of influenza virus vaccine | Office | 110 | 108 | $35.02 | $3,852 |
| G0444 Annual depression screening, 5 to 15 minutes | Office | 95 | 95 | $21.07 | $2,002 |
| G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | Office | 95 | 95 | $140.13 | $13K |
| 99213 Office E&M - Established | Office | 76 | 69 | $64.86 | $4,930 |
| 90662 Vaccine Product | Office | 67 | 65 | $79.13 | $5,301 |
| 90653 Vaccine Product | Office | 44 | 44 | $79.41 | $3,494 |
| 96372 Injection Administration | Office | 41 | 29 | $11.65 | $478 |
| G0438 Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit | Office | 39 | 39 | $177.90 | $6,938 |
By year: 2022 $108K for 2,178 services; 2023 $115K for 2,428 services; 2024 $261K for 5,871 services.
Lab tests billed to Medicare, 2024
| Test code | Tests | Patients | Paid per test | Medicare paid |
|---|---|---|---|---|
| 87811 Immunoassay | 15 | 14 | $40.55 | $608 |
Medicare prescription drug claims, 2024
In 2024, the drug Tu Nguyen prescribed most often to Medicare patients was Atorvastatin Calcium, with 1,151 prescriptions and refills. In total Tu Nguyen wrote 12,924 Medicare prescriptions that cost $2.2M.
| Drug | Claims | 30-day fills | Patients | Cost |
|---|---|---|---|---|
| Atorvastatin Calcium Generic | 1,151 | 3,100 | 357 | $8,546 |
| Losartan Potassium Generic | 656 | 1,728 | 213 | $4,491 |
| Amlodipine Besylate Generic | 600 | 1,575 | 192 | $2,421 |
| Metformin Hcl Generic | 535 | 1,382 | 157 | $3,971 |
| Alendronate Sodium Generic | 509 | 1,267 | 166 | $3,430 |
| Celecoxib Generic | 465 | 535 | 150 | $7,765 |
| Omeprazole Generic | 375 | 540 | 93 | $2,097 |
| Azithromycin Generic | 313 | 313 | 207 | $918 |
| Farxiga Dapagliflozin Propanediol | 275 | 513 | 63 | $283K |
| Diclofenac Sodium Generic | 274 | 369 | 111 | $159K |
| Rosuvastatin Calcium Generic | 223 | 593 | 73 | $2,572 |
| Jardiance Empagliflozin | 208 | 356 | 51 | $204K |
| Januvia Sitagliptin Phosphate | 203 | 337 | 40 | $184K |
| Vascepa Icosapent Ethyl | 203 | 357 | 50 | $121K |
| Triamcinolone Acetonide Generic | 201 | 216 | 85 | $1,221 |
Brand drugs: 2,296 claims; generic drugs: 10,523 claims.
Money and other things of value reported by the companies
In 2025, drug and medical device companies paid Tu Nguyen $6,580 ($6,580 in general payments such as food, travel and fees) from 23 companies. The largest payer was Amgen Inc. with $1,781.
| Company | Payments | Amount |
|---|---|---|
| Amgen Inc. AMGN | 39 | $1,781 |
| Lilly USA, LLC LLY | 8 | $673 |
| AstraZeneca Pharmaceuticals LP AZN | 6 | $497 |
| Novo Nordisk Inc NVO | 5 | $396 |
| Mayne Pharma Commercial LLC | 3 | $365 |
| Insulet Corporation PODD | 2 | $315 |
| Gilead Sciences, Inc. GILD | 2 | $266 |
| Aimmune Therapeutics, Inc. | 2 | $247 |
| Axsome Therapeutics, Inc. AXSM | 2 | $239 |
| Bayer Healthcare Pharmaceuticals Inc. BAYN.DE | 7 | $216 |
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.