Internal Medicine · Garden Grove, CA
NPI
1720153182
Since 2006
Specialty
Internal Medicine
Code 207R00000X
Group practices
0
Medicare group memberships
Hospitals
0
Hospital affiliations
12221 Brookhurst St Ste 100
Garden Grove, CA, 92840
Phone (714) 805-8260
Medicare paid, 2024
$108K
1,344 services
Medicare patients, 2024
126
Average age 79
Drug cost, 2024
$4.3M
7,125 prescriptions
Company payments, 2025
$16.03
From 1 companies
Procedures and visits billed to Original Medicare, 2024
In 2024, the most common Medicare service billed by Tam K Nguyen was code 99214 (office e&m - established), 742 times for 114 patients. In total Tam K Nguyen billed 1,344 services in 16 codes, and Medicare paid $108K.
| Code |
|---|
Official US government data: the national provider registry and Medicare enrollment records, linked by NPI. Last update of this record: 2023-04-22.
| Setting |
|---|
| Services |
|---|
| Patients |
|---|
| Paid per service |
|---|
| Medicare paid |
|---|
| 99214 Office E&M - Established | Office | 742 | 114 | $101.09 | $75K |
| 96372 Injection Administration | Office | 300 | 39 | $12.27 | $3,681 |
| G0181 Physician or allowed practitioner supervision of a patient receiving medicare-covered services provided by a participating home health agency (patient not present) requiring complex and multidisciplinary care modalities involving regular physician or allow | Office | 198 | 66 | $85.53 | $17K |
| 99350 Home E&M - New and Established | Office | 32 | 19 | $153.54 | $4,913 |
| 99204 Office E&M - New | Office | 16 | 16 | $124.50 | $1,992 |
By year: 2022 $14K for 120 services; 2023 $75K for 724 services; 2024 $108K for 1,344 services.
Medicare prescription drug claims, 2024
In 2024, the drug Tam K Nguyen prescribed most often to Medicare patients was Azithromycin, with 465 prescriptions and refills. In total Tam K Nguyen wrote 7,125 Medicare prescriptions that cost $4.3M.
| Drug | Claims | 30-day fills | Patients | Cost |
|---|---|---|---|---|
| Azithromycin Generic | 465 | 465 | 124 | $1,588 |
| Oseltamivir Phosphate Generic | 317 | 317 | 101 | $6,811 |
| Privigen Immun Glob G(Igg)/Pro/Iga 0-50 | 283 | 283 | 46 | $2.0M |
| Januvia Sitagliptin Phosphate | 271 | 396 | 43 | $193K |
| Hydroxychloroquine Sulfate Generic | 271 | 535 | 77 | $11K |
| Mirtazapine Generic | 242 | 287 | 51 | $1,930 |
| Eliquis Apixaban | 239 | 256 | 38 | $127K |
| Dupixent Pen Dupilumab | 234 | 234 | 36 | $862K |
| Prednisone Generic | 199 | 201 | 85 | $455 |
| Colchicine Generic | 183 | 276 | 43 | $12K |
| Metoprolol Succinate Generic | 156 | 306 | 49 | $1,474 |
| Trulicity Dulaglutide | 155 | 163 | 27 | $157K |
| Diclofenac Sodium Generic | 137 | 194 | 48 | $83K |
| Finasteride Generic | 111 | 251 | 34 | $1,339 |
| Clopidogrel Clopidogrel Bisulfate | 110 | 254 | 34 | $868 |
Brand drugs: 2,185 claims; generic drugs: 4,879 claims; opioid claims: 32.
Money and other things of value reported by the companies
In 2025, drug and medical device companies paid Tam K Nguyen $16.03 ($16.03 in general payments such as food, travel and fees) from 1 company. The largest payer was Regeneron Healthcare Solutions, Inc. with $16.03.
| Company | Payments | Amount |
|---|---|---|
| Regeneron Healthcare Solutions, Inc. REGN | 1 | $16.03 |
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.