Internal Medicine, Rheumatology · Redding, CA
NPI
1346276540
Since 2006
Specialty
Internal Medicine, Rheumatology
Code 207RR0500X
Group practices
2
Medicare group memberships
Hospitals
3
Hospital affiliations
1335 Buenaventura Blvd
Redding, CA, 96001
Phone (530) 287-9758
Groups this clinician bills Medicare through
Medicare paid, 2024
$29K
486 services
Medicare patients, 2024
207
Average age 72
Drug cost, 2024
$10.6M
3,550 prescriptions
Company payments, 2025
$327
From 7 companies
Procedures and visits billed to Original Medicare, 2024
In 2024, the most common Medicare service billed by Justina J Tseng was code 99214 (office e&m - established), 383 times for 182 patients. In total Justina J Tseng billed 486 services in 4 codes, and Medicare paid $29K.
| Code |
|---|
Official US government data: the national provider registry and Medicare enrollment records, linked by NPI. Last update of this record: 2026-03-05.
| Setting |
|---|
| Services |
|---|
| Patients |
|---|
| Paid per service |
|---|
| Medicare paid |
|---|
| 99214 Office E&M - Established | Facility | 383 | 182 | $64.29 | $25K |
| 99213 Office E&M - Established | Facility | 99 | 82 | $43.29 | $4,285 |
By year: 2022 $39K for 552 services; 2023 $32K for 511 services; 2024 $29K for 486 services.
Medicare prescription drug claims, 2024
In 2024, the drug Justina J Tseng prescribed most often to Medicare patients was Methotrexate (Methotrexate Sodium), with 440 prescriptions and refills. In total Justina J Tseng wrote 3,550 Medicare prescriptions that cost $10.6M.
| Drug | Claims | 30-day fills | Patients | Cost |
|---|---|---|---|---|
| Methotrexate Methotrexate Sodium | 440 | 979 | 107 | $11K |
| Prednisone Generic | 355 | 595 | 128 | $2,192 |
| Humira(Cf) Pen Adalimumab | 295 | 324 | 42 | $2.8M |
| Hydroxychloroquine Sulfate Generic | 293 | 812 | 83 | $12K |
| Leflunomide Generic | 225 | 596 | 65 | $21K |
| Orencia Clickject Abatacept | 205 | 264 | 32 | $1.5M |
| Enbrel Sureclick Etanercept | 180 | 181 | 28 | $1.3M |
| Diclofenac Sodium Generic | 162 | 306 | 55 | $5,392 |
| Rinvoq Upadacitinib | 136 | 176 | 21 | $1.1M |
| Cosentyx Sensoready (2 Pens) Secukinumab | 111 | 126 | 12 | $926K |
| Benlysta Belimumab | 86 | 93 | 11 | $437K |
| Leucovorin Calcium Generic | 69 | 141 | 18 | $710 |
| Alendronate Sodium Generic | 67 | 188 | 22 | $359 |
| Otezla Apremilast | 63 | 63 | Under 11 | $280K |
| Sulfasalazine Generic | 62 | 111 | 18 | $1,326 |
Brand drugs: 1,374 claims; generic drugs: 2,176 claims.
Money and other things of value reported by the companies
In 2025, drug and medical device companies paid Justina J Tseng $327 ($327 in general payments such as food, travel and fees) from 7 companies. The largest payer was Pfizer Inc. with $74.86.
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.