Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Rom Samuel Leidner, MD

Individual provider Hematology & Oncology Physician · NPI 1801908702

Dr. Rom Samuel Leidner, MD is a Medical Oncology in Portland, Oregon. Qualified in 1999, 27 years ago. Practices with Providence Health and Services Oregon, a 1,426-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Ohio, Oregon and Washington.

Years since qualifying
27
Licensed in
OH, OR, WA
In the registry since
2006
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

4805 NE Glisan St Ste 6N40
Portland, OR 97213-2933
Phone: (503) 215-5696
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Medical Oncology Physician (primary) Taxonomy 207RX0202X · Licence MD159938 (OR)
Hematology & Oncology Physician Taxonomy 207RH0003X · Licence 57.012492 (OH)
Medical Oncology Physician Taxonomy 207RX0202X · Licence MD00044911 (WA)

Record details

NPI number1801908702
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 31, 2006
Last updated in NPPESMarch 19, 2021
Certification dateMarch 19, 2021

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyMEDICAL ONCOLOGY
Also practisesINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1999 (27 years in practice)
Group practice Providence Health And Services Oregon — 1426 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

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