Internal Medicine · San Luis Obispo, CA
NPI
1336272871
Since 2007
Specialty
Internal Medicine
Code 207R00000X
Group practices
1
Medicare group memberships
Hospitals
3
Hospital affiliations
892 Aerovista Pl Ste 210
San Luis Obispo, CA, 93401
Phone (805) 549-8023
Groups this clinician bills Medicare through
Medicare paid, 2024
$102K
4,810 services
Medicare patients, 2024
486
Average age 73
Drug cost, 2024
$1.0M
8,998 prescriptions
Company payments, 2025
$40.4
From 2 companies
Procedures and visits billed to Original Medicare, 2024
In 2024, the most common Medicare service billed by Thomas T Nguyen was code 99214 (office e&m - established), 706 times for 385 patients. In total Thomas T Nguyen billed 4,810 services in 41 codes, and Medicare paid $102K.
| Code |
|---|
Official US government data: the national provider registry and Medicare enrollment records, linked by NPI. Last update of this record: 2025-05-20.
| Setting |
|---|
| Services |
|---|
| Patients |
|---|
| Paid per service |
|---|
| Medicare paid |
|---|
| 99214 Office E&M - Established | Office | 706 | 385 | $85.30 | $60K |
| 99213 Office E&M - Established | Office | 170 | 143 | $55.76 | $9,479 |
| G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | Office | 135 | 135 | $135.81 | $18K |
| 99442 Telephone Services | Office | 30 | 28 | $66.88 | $2,006 |
| 99215 Office E&M - Established | Office | 24 | 24 | $123.96 | $2,975 |
| 99212 Office E&M - Established | Office | 11 | 11 | $39.40 | $433 |
By year: 2022 $142K for 12,236 services; 2023 $132K for 6,487 services; 2024 $102K for 4,810 services.
Medicare prescription drug claims, 2024
In 2024, the drug Thomas T Nguyen prescribed most often to Medicare patients was Atorvastatin Calcium, with 607 prescriptions and refills. In total Thomas T Nguyen wrote 8,998 Medicare prescriptions that cost $1.0M.
| Drug | Claims | 30-day fills | Patients | Cost |
|---|---|---|---|---|
| Atorvastatin Calcium Generic | 607 | 1,747 | 178 | $6,513 |
| Levothyroxine Sodium Generic | 320 | 887 | 87 | $4,142 |
| Amlodipine Besylate Generic | 297 | 834 | 83 | $1,987 |
| Metformin Hcl Generic | 276 | 796 | 82 | $2,756 |
| Valsartan Generic | 269 | 752 | 79 | $9,427 |
| Rosuvastatin Calcium Generic | 238 | 699 | 71 | $3,717 |
| Losartan Potassium Generic | 237 | 701 | 74 | $2,585 |
| Lisinopril Generic | 216 | 619 | 65 | $1,232 |
| Pantoprazole Sodium Generic | 213 | 567 | 64 | $3,011 |
| Alprazolam Generic | 204 | 210 | 51 | $1,019 |
| Ozempic Semaglutide | 183 | 299 | 36 | $261K |
| Tamsulosin Hcl Generic | 181 | 456 | 49 | $4,032 |
| Zolpidem Tartrate Generic | 179 | 243 | 50 | $1,328 |
| Metoprolol Succinate Generic | 154 | 448 | 47 | $2,403 |
| Alendronate Sodium Generic | 154 | 412 | 39 | $1,476 |
Brand drugs: 1,134 claims; generic drugs: 7,821 claims; opioid claims: 149.
Money and other things of value reported by the companies
In 2025, drug and medical device companies paid Thomas T Nguyen $40.4 ($40.4 in general payments such as food, travel and fees) from 2 companies. The largest payer was Exact Sciences Corporation with $20.62.
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.