Justina Jennan Tseng, MD
NPI 1346276540ActiveIndividual· Internal Medicine, Rheumatology· Redding, CA
Internal Medicine, Rheumatology (MD) in Redding, California, trained at Boston University School of Medicine (class of 1998). Their prescriptions cost Medicare Part D more than their services did: $10,587,545 for 3,550 claims, against $29,230 paid for services in 2024. Pfizer Inc. was the largest of 7 companies reporting payments in 2025, $326.56 in all, mostly food and beverage.
Overview
| NPI | 1346276540 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 23, 2006 |
| Last updated in NPPES | Mar 5, 2026 |
| Certified by provider | Mar 5, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Rheumatology Primary | 207RR0500X | C54040 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Rheumatology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 207 |
|---|---|
| Services billed | 486 across 4 procedure codes |
| Paid by Medicare | $29,230 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,550 · 6,698 30-day fills |
|---|---|
| Patients | 353 |
| Total drug cost | $10,587,545 |
| Generic share | 61% of claims |
Education and affiliations
| Medical school | Boston University School of Medicine |
|---|---|
| Graduation year | 1998 |
| Medicare specialty | Rheumatology |
Hospital affiliations
- Sullivan County Community HospitalSullivan, IN
- Union Hospital ClintonClinton, IN
- Union Hospital IncTerre Haute, IN
Industry payments (Open Payments)
- 2025$326.56 · 15 payments from 7 companies
- 2024$690.48 · 29 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pfizer Inc. | $74.86 | 4 |
| Amgen Inc. | $71.35 | 4 |
| Lilly USA, LLC | $54.05 | 2 |
| Organon LLC | $50.98 | 2 |
| Ucb, Inc. | $35.09 | 1 |
What the 2025 payments were for
- Food and Beverage$326.56 · 15 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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