James Lin Chen, M.D.
NPI 1558520502ActiveIndividual· Internal Medicine, Medical Oncology· Columbus, OH
Internal Medicine, Medical Oncology (M.D.) with Osu Internal Medicine LLC, practicing in Columbus, Ohio. Their prescriptions cost Medicare Part D more than their services did: $332,494 for 188 claims, against $8,633 paid for services in 2024. Lists Ohio State University State Health System as a hospital affiliation.
Overview
| NPI | 1558520502 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 5, 2008 |
| Last updated in NPPES | Dec 17, 2025 |
| Certified by provider | Dec 17, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Medical Oncology Primary | 207RX0202X | 35.120224 | OH |
| Internal Medicine, Hematology & Oncology | 207RH0003X | 036120524 | IL |
| Internal Medicine, Hematology & Oncology | 207RH0003X | 35.120224 | OH |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Hematology/Oncology (OH) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 33 |
|---|---|
| Services billed | 94 across 3 procedure codes |
| Paid by Medicare | $8,633 |
Part D prescriptions in 2024
| Prescriptions (claims) | 188 · 218 30-day fills |
|---|---|
| Patients | 20 |
| Total drug cost | $332,494 |
| Generic share | 82% of claims |
Education and affiliations
| Graduation year | 2005 |
|---|---|
| Medicare specialty | Hematology/Oncology |
Medical group
- Osu Internal Medicine LLCColumbus, OH · 1,161 clinicians
Hospital affiliation
- Ohio State University State Health SystemColumbus, OH
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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