Internal Medicine · Monterey Park, CA
NPI
1912017211
Since 2006
Specialty
Internal Medicine
Code 207R00000X
Group practices
1
Medicare group memberships
Hospitals
0
Hospital affiliations
880 S Atlantic Blvd, Suite 208
Monterey Park, CA, 91754
Phone (626) 289-9478
Groups this clinician bills Medicare through
Medicare paid, 2024
$821K
16,586 services
Medicare patients, 2024
494
Average age 76
Drug cost, 2024
$1.7M
21,214 prescriptions
Company payments, 2025
$885
From 15 companies
Procedures and visits billed to Original Medicare, 2024
In 2024, the most common Medicare service billed by Thomas M Tseng was code 99439 (chronic, principal, and transitional care management), 3,156 times for 303 patients. In total Thomas M Tseng billed 16,586 services in 26 codes, and Medicare paid $821K.
| Code |
|---|
Official US government data: the national provider registry and Medicare enrollment records, linked by NPI. Last update of this record: 2010-09-17.
| Setting |
|---|
| Services |
|---|
| Patients |
|---|
| Paid per service |
|---|
| Medicare paid |
|---|
| 99439 Chronic, Principal, and Transitional Care Management | Office | 3,156 | 303 | $40.34 | $127K |
| 99490 Chronic, Principal, and Transitional Care Management | Office | 3,143 | 303 | $52.14 | $164K |
| 99457 E&M - Miscellaneous | Office | 2,375 | 277 | $41.94 | $100K |
| 99454 E&M - Miscellaneous | Office | 2,346 | 274 | $43.21 | $101K |
| G2211 Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's | Office | 1,661 | 441 | $13.34 | $22K |
| 99214 Office E&M - Established | Office | 1,251 | 416 | $109.09 | $136K |
| 99213 Office E&M - Established | Office | 405 | 240 | $70.35 | $28K |
| 99497 Care Management/Coordination | Office | 353 | 352 | $82.47 | $29K |
| G0446 Annual, face-to-face intensive behavioral therapy for cardiovascular disease, individual, 15 minutes | Office | 343 | 343 | $26.77 | $9,182 |
| G0442 Annual alcohol misuse screening, 5 to 15 minutes | Office | 341 | 341 | $21.06 | $7,182 |
| G0444 Annual depression screening, 5 to 15 minutes | Office | 290 | 290 | $21.06 | $6,108 |
| G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | Office | 284 | 284 | $140.09 | $40K |
| 99443 Telephone Services | Office | 251 | 132 | $105.89 | $27K |
| 99204 Office E&M - New | Office | 81 | 81 | $139.01 | $11K |
| 81002 Clinical Chemistry | Office | 56 | 42 | $3.41 | $191 |
By year: 2022 $226K for 3,667 services; 2023 $486K for 9,722 services; 2024 $821K for 16,586 services.
Lab tests billed to Medicare, 2024
| Test code | Tests | Patients | Paid per test | Medicare paid |
|---|---|---|---|---|
| 81002 Clinical Chemistry | 56 | 42 | $3.41 | $191 |
Medicare prescription drug claims, 2024
In 2024, the drug Thomas M Tseng prescribed most often to Medicare patients was Atorvastatin Calcium, with 1,736 prescriptions and refills. In total Thomas M Tseng wrote 21,214 Medicare prescriptions that cost $1.7M.
| Drug | Claims | 30-day fills | Patients | Cost |
|---|---|---|---|---|
| Atorvastatin Calcium Generic | 1,736 | 3,943 | 461 | $16K |
| Amlodipine Besylate Generic | 1,274 | 2,867 | 322 | $8,637 |
| Pantoprazole Sodium Generic | 744 | 1,364 | 247 | $6,481 |
| Metoprolol Succinate Generic | 721 | 1,594 | 188 | $9,901 |
| Metformin Hcl Generic | 715 | 1,596 | 165 | $5,918 |
| Rosuvastatin Calcium Generic | 594 | 1,378 | 180 | $7,764 |
| Levocetirizine Dihydrochloride Generic | 536 | 975 | 180 | $7,104 |
| Losartan Potassium Generic | 529 | 1,223 | 140 | $6,475 |
| Alendronate Sodium Generic | 418 | 915 | 134 | $3,267 |
| Valsartan Generic | 393 | 835 | 106 | $12K |
| Tamsulosin Hcl Generic | 371 | 809 | 98 | $5,641 |
| Zolpidem Tartrate Generic | 365 | 370 | 80 | $1,400 |
| Levothyroxine Sodium Generic | 362 | 699 | 74 | $3,220 |
| Fenofibrate Generic | 344 | 642 | 94 | $6,732 |
| Hydralazine Hcl Generic | 327 | 648 | 71 | $3,585 |
Brand drugs: 2,232 claims; generic drugs: 18,901 claims; opioid claims: 24.
Money and other things of value reported by the companies
In 2025, drug and medical device companies paid Thomas M Tseng $885 ($885 in general payments such as food, travel and fees) from 15 companies. The largest payer was Amgen Inc. with $142.
| Company | Payments | Amount |
|---|---|---|
| Amgen Inc. AMGN | 8 | $142 |
| Lilly USA, LLC LLY | 4 | $119 |
| Radius Health, Inc. | 3 | $78.43 |
| Novartis Pharmaceuticals Corporation NVS | 3 | $73.45 |
| AstraZeneca Pharmaceuticals LP AZN | 3 | $72.46 |
| Aimmune Therapeutics, Inc. | 2 | $53.57 |
| Sumitomo Pharma America, Inc. 4506.T | 2 | $50.79 |
| Salix Pharmaceuticals, a division of Bausch Health US, LLC BHC | 2 | $49.91 |
| Shield Therapeutics Inc STX.L | 2 | $49.78 |
| GlaxoSmithKline, LLC. GSK | 2 | $46.84 |
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.