Internal Medicine · San Jose, CA
NPI
1962520478
Since 2007
Specialty
Internal Medicine
Code 207R00000X
Group practices
5
Medicare group memberships
Hospitals
2
Hospital affiliations
200 Jose Figueres Ave Ste 180
San Jose, CA, 95116
Phone (408) 258-5083
Groups this clinician bills Medicare through
Medicare paid, 2024
$332K
3,862 services
Medicare patients, 2024
1,014
Average age 76
Drug cost, 2024
$4.4M
35,628 prescriptions
Company payments, 2025
$1,828
From 18 companies
Procedures and visits billed to Original Medicare, 2024
In 2024, the most common Medicare service billed by Tam H Nguyen was code 99214 (office e&m - established), 2,767 times for 857 patients. In total Tam H Nguyen billed 3,862 services in 29 codes, and Medicare paid $332K.
| Code |
|---|
Official US government data: the national provider registry and Medicare enrollment records, linked by NPI. Last update of this record: 2018-09-12.
| Setting |
|---|
| Services |
|---|
| Patients |
|---|
| Paid per service |
|---|
| Medicare paid |
|---|
| 99214 Office E&M - Established | Office | 2,767 | 857 | $100.16 | $277K |
| 99204 Office E&M - New | Office | 196 | 196 | $101.35 | $20K |
| 99213 Office E&M - Established | Office | 166 | 133 | $61.48 | $10K |
| G0180 Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and | Office | 66 | 46 | $50.64 | $3,342 |
| 99349 Home E&M - New and Established | Office | 42 | 26 | $77.11 | $3,239 |
| 93880 Duplex Scan - Extracranial Arteries | Office | 22 | 22 | $196.25 | $4,318 |
| 93306 Echocardiography (TTE/TEE) | Office | 22 | 22 | $169.98 | $3,740 |
| 76700 Ultrasound - Abdomen and Pelvis | Office | 20 | 20 | $122.03 | $2,441 |
| G0179 Physician or allowed practitioner re-certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians a | Office | 20 | 16 | $42.36 | $847 |
| G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | Office | 14 | 14 | $147.00 | $2,058 |
| 96372 Injection Administration | Office | 12 | 12 | $12.48 | $150 |
By year: 2022 $387K for 4,006 services; 2023 $417K for 4,226 services; 2024 $332K for 3,862 services.
Medicare prescription drug claims, 2024
In 2024, the drug Tam H Nguyen prescribed most often to Medicare patients was Atorvastatin Calcium, with 1,828 prescriptions and refills. In total Tam H Nguyen wrote 35,628 Medicare prescriptions that cost $4.4M.
| Drug | Claims | 30-day fills | Patients | Cost |
|---|---|---|---|---|
| Atorvastatin Calcium Generic | 1,828 | 5,240 | 610 | $26K |
| Losartan Potassium Generic | 1,814 | 5,354 | 608 | $24K |
| Baclofen Generic | 1,197 | 3,159 | 515 | $8,994 |
| Amlodipine Besylate Generic | 1,176 | 3,441 | 448 | $13K |
| Triamcinolone Acetonide Generic | 1,134 | 1,206 | 421 | $15K |
| Metoprolol Succinate Generic | 950 | 2,774 | 327 | $16K |
| Gabapentin Generic | 928 | 2,549 | 349 | $10K |
| Albuterol Sulfate Hfa Albuterol Sulfate | 921 | 956 | 302 | $28K |
| Omeprazole Generic | 824 | 2,231 | 309 | $11K |
| Fluticasone Propionate Generic | 817 | 1,385 | 303 | $9,103 |
| Metformin Hcl Generic | 797 | 2,296 | 271 | $7,441 |
| Jardiance Empagliflozin | 675 | 1,036 | 158 | $581K |
| Azithromycin Generic | 599 | 599 | 448 | $2,210 |
| Tamsulosin Hcl Generic | 578 | 1,679 | 208 | $10K |
| Trelegy Ellipta Fluticasone/Umeclidin/Vilanter | 565 | 602 | 137 | $375K |
Brand drugs: 5,771 claims; generic drugs: 29,699 claims; opioid claims: 217.
Money and other things of value reported by the companies
In 2025, drug and medical device companies paid Tam H Nguyen $1,828 ($1,828 in general payments such as food, travel and fees) from 18 companies. The largest payer was Abbvie Inc. with $331.
| Company | Payments | Amount |
|---|---|---|
| Abbvie Inc. ABBV | 17 | $331 |
| Novo Nordisk Inc NVO | 10 | $326 |
| AstraZeneca Pharmaceuticals LP AZN | 8 | $283 |
| GlaxoSmithKline, LLC. GSK | 11 | $230 |
| Kowa Pharmaceuticals America, Inc. | 8 | $184 |
| Aimmune Therapeutics, Inc. | 5 | $157 |
| Gilead Sciences, Inc. GILD | 2 | $47.29 |
| Bayer Healthcare Pharmaceuticals Inc. BAYN.DE | 2 | $42.98 |
| Sumitomo Pharma America, Inc. 4506.T | 2 | $35.09 |
| Medtronic, Inc. MDT | 1 | $25.65 |
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.