Rom Samuel Leidner, MD
NPI 1801908702ActiveIndividual· Internal Medicine, Medical Oncology· Portland, OR
Internal Medicine, Medical Oncology (MD) with Providence Health and Services Oregon, practicing in Portland, Oregon. Their prescriptions cost Medicare Part D more than their services did: $508,253 for 582 claims, against $24,006 paid for services in 2024. Caris Mpi, Inc. was the largest of 2 companies reporting payments in 2025, $190.03 in all, mostly food and beverage. Lists Providence Portland Medical Center as a hospital affiliation.
Overview
| NPI | 1801908702 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Aug 31, 2006 |
| Last updated in NPPES | Mar 19, 2021 |
| Certified by provider | Mar 19, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Medical Oncology Primary | 207RX0202X | MD159938 | OR |
| Internal Medicine, Hematology & Oncology | 207RH0003X | 57.012492 | OH |
| Internal Medicine, Medical Oncology | 207RX0202X | MD00044911 | WA |
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 - Medical Oncology (OR) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 46 |
|---|---|
| Services billed | 384 across 14 procedure codes |
| Paid by Medicare | $24,006 |
Part D prescriptions in 2024
| Prescriptions (claims) | 582 · 720 30-day fills |
|---|---|
| Patients | 62 |
| Total drug cost | $508,253 |
| Generic share | 93% of claims |
Education and affiliations
| Graduation year | 1999 |
|---|---|
| Medicare specialty | Medical Oncology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Providence Health and Services OregonPortland, OR · 1,433 clinicians
Hospital affiliation
- Providence Portland Medical CenterPortland, OR
Other facilities
- Providence HospiceHospice · Portland, OR
Industry payments (Open Payments)
- 2025$190.03 · 2 payments from 2 companies
- 2024$4,586 · 5 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Caris Mpi, Inc. | $162.40 | 1 |
| Astellas Pharma US Inc | $27.63 | 1 |
What the 2025 payments were for
- Food and Beverage$190.03 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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