Quick answers
- Which hospitals does Rom S. Leidner work at?
- Medicare's official clinician data lists Rom S. Leidner at 1 hospital: Providence Portland Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Rom S. Leidner see patients?
- Medicare's clinician data lists 2 practice locations, including Portland, OR. Call before your visit to confirm the address.
- What is Rom S. Leidner's specialty?
- Medicare lists Medical Oncology as the primary specialty, and also Internal Medicine.
- Does Rom S. Leidner accept Medicare assignment?
- Yes. Medicare's clinician data says Rom S. Leidner accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- Does Rom S. Leidner offer telehealth?
- Medicare's clinician data says Rom S. Leidner offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Rom S. Leidner?
- (503) 215-4250, as listed in official Medicare / NPI Registry data.
- What is Rom S. Leidner's NPI number?
- 1801908702. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Rom S. Leidner works
Medicare's Facility Affiliation Data lists Rom S. Leidner at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Providence Portland Medical CenterPortland, OR · Acute Care Hospital · CCN 380061
Practice locations
Addresses where Rom S. Leidner is enrolled with Medicare (CMS data updated 2026-10-02).
- 1321 NE 99th Ave, Suite 200Portland, OR 97220 (503) 215‑4250
- 4805 NE Glisan StPortland, OR 97213
Group practices
Medicare enrollment lists Rom S. Leidner as a member of this group (CMS data updated 2026-10-02).
- Providence Health and Services Oregon1,433 clinicians in the group
Specialties
- Medical Oncologyprimary
- Internal Medicinealso
Other oncologists in Portland
Clinicians with the same Medicare primary specialty in Portland, OR — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1999 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1801908702 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians