Dotter Department of Interventional Radiology Faculty

 A male and a female doctor smile and talk as they walk up a stairway inside a building.

Meet leaders driving innovation in interventional radiology 

Our faculty are internationally recognized for excellence in interventional radiology (IR) .  

We guide best practices, drive innovation and advance minimally invasive, image-guided care regionally and worldwide. We also train the next generation of IR experts in a collaborative academic health and science environment. 

What sets us apart

We proudly continue our department’s pioneering spirit by driving IR discovery and shaping the future. You’ll find faculty who: 

  • Collaborate with you across specialties to care for patients using advanced therapies
  • Educate and mentor you through rigorous residency and fellowship programs
  • Lead research studies with you to develop new therapies in interventional oncology and endovascular care 

Faculty leading IR innovation

Our team includes highly specialized IR experts who publish research that drives innovation. Faculty achievements include:  

Faculty team culture

 We value kindness as much as academic rigor. For a small department, we make a big impact through close collaboration and a shared purpose to deliver excellence in academic-level IR care. You’ll find: 

  • A culture of belonging, curiosity, innovation and respect so you can thrive
  • Commitment to equality and inclusion across the School of Medicine and OHSU
  • Diverse faculty that empower colleagues and trainees to excel
  • Generous employee benefits and the chance to work in Portland, known for its natural beauty, cultural vibrancy and outstanding food scene 

Bring your passion for advancing IR

Our team reflects both the legacy and future of interventional radiology.  

Join us to lead clinical trials, develop new techniques and train the next generation of interventional radiologists. Together, let’s push the boundaries of what’s possible. 

Meet department faculty 

Our team of highly specialized, internationally known experts brings global perspectives to advance IR. 

Khashayar Farsad, M.D., Ph.D., is a professor and the department chair of Interventional Radiology, and the Josef Rösch Chair of Interventional Radiology.

Shellie Josephs, M.D., is a professor and the vice chair of clinical operation and quality for the Department of Interventional Radiology.

Body/Vascular Interventional Radiology Section faculty

The Body IR Section provides image-guided treatment across specialties, including cardiovascular, cancer and pulmonary care.

Keith Quencer, M.D., is an associate professor in the Department of Interventional Radiology and the section head of Body/Vascular IR. 

    • Appointments and titles

      • Associate Professor of Interventional Radiology, School of Medicine
    • Areas of interest

      • Renal ablation
      • Venous Sampling
      • Dialysis Access Interventions
      • Portal Hypertension
      • Trauma embolization
    • Appointments and titles

      • Professor of Medicine, Division of Pulmonary, Allergy and Critical Care Medicine, School of Medicine
    • Areas of interest

      • HHT
      • Pulmonary arteriovenous fistula (PAVF)
      • Pulmonary arteriovenous malformation (PAVM)
    • Appointments and titles

      • Instructor of Interventional Radiology, School of Medicine
    • Appointments and titles

      • Associate Professor of Interventional Radiology, School of Medicine
    • Areas of interest

      • Vascular Malformations
      • Hereditary Hemorrhagic Telangiectasia
      • Prostate Interventions
      • Women's Interventions
      • Portal Hypertension
    • Appointments and titles

      • Professor of Interventional Radiology, School of Medicine
    • Appointments and titles

      • Assistant Professor of Interventional Radiology, School of Medicine
    • Appointments and titles

      • Instructor of Interventional Radiology, School of Medicine
    • Appointments and titles

      • Instructor of Interventional Radiology, School of Medicine
    • Appointments and titles

      • Assistant Professor of Interventional Radiology, School of Medicine
      • Assistant Professor of Biomedical Engineering, School of Medicine
    • Areas of interest

      • Interventional Oncology
      • Thyroid Ablation
    • Appointments and titles

      • Instructor of Interventional Radiology, School of Medicine
    • Appointments and titles

      • Research Assistant Professor of Interventional Radiology, School of Medicine

Allison Schell, P.A.-C., physician associate

Shailah Megia, P.A.-C., physician associate 

Metro Interventional Radiology Section faculty

The Metro IR Section provides complex, comprehensive interventional radiology care at several hospitals in the Portland metro area.   

Masahiro Horikawa, M.D., is an associate professor in the Department of Interventional Radiology and heads the Metro IR Section.

    • Appointments and titles

      • Assistant Professor of Interventional Radiology, School of Medicine
    • Areas of interest

      • Interventional Radiology
      • Portal Vein Hypertension
      • Vascular Malformation
      • Interventional Neuroradiology
    • Appointments and titles

      • Assistant Professor of Interventional Radiology, School of Medicine
    • Appointments and titles

      • Instructor of Interventional Radiology, School of Medicine
    • Appointments and titles

      • Assistant Professor of Interventional Radiology, School of Medicine
    • Appointments and titles

      • Assistant Professor of Interventional Radiology, School of Medicine
    • Appointments and titles

      • Assistant Professor of Interventional Radiology, School of Medicine
    • Areas of interest

      • Deep Vein Thrombosis
      • Gastrointestinal/Genitourinary Procedures
      • Gonadal Vein Embolization
      • Hepatobiliary Disease
      • Peripheral Arterial Disease
      • Prostatic Artery Embolization
      • Pulmonary Embolism
      • Uterine Fibroid Embolization
    • Appointments and titles

      • Assistant Professor of Interventional Radiology, School of Medicine
    • Areas of interest

      • Interventional Oncology
      • Hepatobiliary Procedures
      • Thrombectomy for Deep Vein Thrombosis and Pulmonary Embolism
      • Complex IVC filter retrieval and reconstruction
      • Gastrointestinal/Genitourinary procedures
      • Uterine Fibroids
      • Peripheral Arterial Disease
    • Appointments and titles

      • Associate Professor of Interventional Radiology, School of Medicine
    • Areas of interest

      • Interventional Oncology
      • Complex Hepatobiliary and Portal Hypertension Interventions
      • Gastrointestinal and Genitourinary Interventions
      • Deep Venous Thrombosis
      • IVC filters
      • Pulmonary Embolism
      • Dialysis Interventions
    • Appointments and titles

      • Assistant Professor of Interventional Radiology, School of Medicine

Neurointerventional Radiology Section faculty

The Neurointerventional Radiology Section is an interdisciplinary group of neurointerventional radiologists, neurosurgeons and neurologists who collaborate within the Dotter Department of Interventional Radiology.

Ryan A. Priest, M.D. is an associate professor in the Department of Interventional Radiology and the section head of Neuro IR.  

    • Appointments and titles

      • Associate Professor of Interventional Radiology, School of Medicine
    • Appointments and titles

      • Assistant Professor of Interventional Radiology, School of Medicine
    • Appointments and titles

      • Professor of Neurological Surgery, Division of Skull Base and Cerebrovascular, School of Medicine
    • Appointments and titles

      • Assistant Professor of Interventional Radiology, School of Medicine
    • Appointments and titles

      • Assistant Professor of Interventional Radiology, School of Medicine
    • Areas of interest

      • Interventional Radiology
      • Portal Vein Hypertension
      • Vascular Malformation
      • Interventional Neuroradiology
    • Appointments and titles

      • Assistant Professor of Neurological Surgery, Division of Skull Base and Cerebrovascular, School of Medicine
      • Assistant Professor of Interventional Radiology, School of Medicine
    • Appointments and titles

      • Professor of Interventional Radiology, School of Medicine
    • Areas of interest

      • Pediatric and Adult Neurointervention of the brain, head and neck, and spine
    • Appointments and titles

      • Instructor of Interventional Radiology, School of Medicine
    • Areas of interest

      • Pediatric and Adult Neurointervention of the brain, head and neck, and spine

Scott Rewinkel, M.D.

Portland VA Medical Center IR program faculty

The VA IR program provides comprehensive interventional radiology care for veterans at the Portland VA Medical Center.

Ryan C. Schenning, M.D. is an associate professor in the Department of Interventional Radiology and leads the VA IR program. 

Translational research lab

Faculty careers  

Find professor,  physician and APP faculty jobs at OHSU. 

Portrait of Dr. Shellie Josephs, interventional radiologist at OHSU

“I am honored to partner with highly talented leaders who balance academic rigor, clinical excellence and real-world impact to advance our field."

- Shellie Josephs, M.D.

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