Our Team

Ethan M. Dobrow, M.D. — Interventional Radiologist
Areas of Expertise: General & Vascular Interventional Radiology / Diagnostic Radiology
Board Certifications and Society Memberships:
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Diplomate – American Board of Radiology
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Diplomate – American Board of Radiology in Interventional Radiology
Medical Education:
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Medical School : Tufts University School of
Medicine, Boston, MA
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Medical Internship: Mt Auburn Hospital,
Cambridge, MA
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Residency: Maine Medical Center, Portland, Maine; Boston Children’s Hospital
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Fellow of University of Washington Medical Center, Harborview Medical Center, VA Hospital at Puget Sound and Seattle Children’s Hospital,
Interventional Radiology

Archie R. McGowan, M.D. — Diagnostic and Interventional Radiologist
Areas of Expertise:
Neuroradiology / General & Vascular Interventional Radiology
Board Certifications and Society Memberships :
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Diplomate – American Board of Radiology
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Diplomate – American Board of Radiology in Interventional Radiology
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American Board of Radiology Certification of
Added Qualification (CAQ) in Neuro Radiology
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Radiological Society of North America
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American College of Radiology
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New Hampshire Medical Society
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Portsmouth Medical Society
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Society of Interventional Radiology
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Society of Neuro Interventional Surgery (SNIS)
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New England Society of Interventional Radiology
Medical Education:
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Medical School: Dartmouth Medical School,
Hanover, NH
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Medical Internship: Mt Auburn Hospital,
Cambridge, MA
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Chief Resident: Brigham and Women’s Hospital,
Boston, MA
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Fellowship: Vascular and IR, USAF Scott
Medical Center
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Clinical Fellow of Harvard Medical School
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Fellowship: Neuroradiology, Washington
University Medical Center

Jeffrey Mendel, M.D. — Diagnostic Radiologist
Areas of Expertise:
Breast Imaging and Procedures, Nuclear Medicine, Cardiac Imaging, Neuroradiology
Board Certifications and Society Memberships:
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Diplomate – American Board of Radiology
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Diplomate – American board of Nuclear Medicine
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Radiological Society of North America
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International Society of Computed Tomography
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European Society of Radiology
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Society of Nuclear Medicine and Molecular Imaging
Medical Education:
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Medical School: Tufts University School of Medicine
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Internship: Norwalk Hospital, Norwalk, CT
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Residency in Diagnostic Radiology: Hospital of St. Raphael, New Haven, CT
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Residency in Nuclear Medicine: Joint Program in Nuclear Medicine, Harvard Medical School
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Assistant Professor of Radiology, Tufts University School of Medicine

Matthew C. Oliff, M.D. — Diagnostic Radiologist
Areas of Expertise:
Breast Imaging and Procedures, Musculoskeletal Imaging and Procedures
Board Certifications and Society Memberships:
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Diplomate – American Board of Radiology
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American College of Radiology
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Radiological Society of North America
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New Hampshire Medical Society
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Portsmouth Medical Society
Medical Education:
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Medical School: Columbia University College of Physicians and Surgeons
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Internship: Brockton Hospital/Tufts University
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Residency (including dedicated training in Breast Imaging): Brigham and Women's Hospital
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Fellowship is Musculoskeletal Radiology: Brigham
and Women's Hospital
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Clinical Fellow of Harvard Medical School

John G. Pierce, M.D. — Interventional Oncology Radiologist
Areas of Expertise:
General & Vascular Interventional Radiology / Interventional Radiology Oncology
Board Certifications and Society Memberships:
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Diplomate – American Board of Radiology
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Diplomate - American Board of Radiology in Interventional Radiology
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American Board of Radiology Certificate of Added Qualification (CAQ) in Cardiovascular and Interventional Radiology
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Society of Cardiovascular and Interventional Radiology
Medical Education:
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Medical School: Tufts University, Boston, MA
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Residency in Diagnostic Radiology: Yale - New Haven Hospital and Yale University School of Medicine
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Fellowship: Cardiovascular and Interventional Radiology, University of Pennsylvania
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Medical Center and Children’s Hospital of
Philadelphia, PA

Jesse B. Smith M.D. — Diagnostic Radiologist
Areas of Expertise:
Musculoskeletal Imaging and Procedures, MRI of Sports Injuries, Breast imaging and
Image-guided Breast biopsy.
Board Certifications and Society Memberships:
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Diplomate - American Board of Radiology
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New England Roentgen Ray Society
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Radiological Society of North America
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American College of Radiology
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New Hampshire Medical Society
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Portsmouth Medical Society
Medical Education:
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Medical School: University of Massachusetts
Medical School, Worcester, MA
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Internship: St. Vincent Hospital, Worcester, MA
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Residency in Diagnostic Radiology: Brigham and Women's Hospital / Harvard Medical School
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Chief Resident in Radiology: Brigham and
Women’s Hospital
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Fellowship: Musculoskeletal Radiology:
Brigham and Women’s Hospital
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Clinical Fellow of Harvard Medical School

O. Robert Stevens, M.D. — Diagnostic Radiologist
Areas of Expertise: Cross Sectional Imaging and Mammography
Board Certifications and Society Memberships:
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Diplomate – American Board of Radiology
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American College of Radiology
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Radiological Society of North America
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New Hampshire Medical Society
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Portsmouth Medical Society
Medical Education:
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Medical School: University of Vermont, Burlington, VT
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Internship in Internal Medicine: Dartmouth-Hitchcock Medical Center, Hanover, NH
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Residency in Radiology: Dartmouth-Hitchcock
Medical Center, Hanover, NH and Children’s
Hospital Medical Center, Boston, MA

Diane Langlois — Interventional Radiology Patient Navigator
As a courtesy to our Interventional Radiology patients, Portsmouth Regional Hospital provides the services of a Patient Navigator, Diane Langlois. She serves as a proactive guide to help you “navigate” all the necessary information from the professional and hospital resources that will make your journey to recovery more understandable and positive. Diane is here to help obtain your medical information, schedule consultations, schedule and educate patients prior to their procedures and plan follow-up care. She does the “leg work” that could delay treatment by assisting patients in obtaining medical records from other facilities, making timely appointments for tests and procedures and hopefully increasing patient satisfaction. And, she is just a phone call away. The Center for Interventional Radiology at Portsmouth Regional Hospital has a menu of greater than 60 procedures that we offer our medical community for their patients. If you have any questions please call Diane at 603-433-5285. Our office is open Monday through Friday from 8:00 am to 4:30 pm.