Radiology Team

Dartmouth Health Radiology is an amazing Department, and I am so thrilled to be part of this team. Our radiologists are world-class experts whose subspecialization covers every disease, every body part, and every type of radiology test. Our team is kind and caring, taking care of each other, and working every day to bring compassionate care to our patients.

David M. Naeger, MD, FACR, FAAR

Matthew E. Maeder, MD, Section Chief

Body Imaging is one of the largest sections in Radiology. We specialize in a wide variety of imaging studies covering the entire abdomen, pelvis, and more. One of my main goals as head of the section is to provide excellent services to our patients and providers, beginning and ending with the highest-quality images and interpretations. We are proud to always go the extra mile, and we are honored to serve the Dartmouth community and many sites across New Hampshire and Vermont.

Matthew E. Maeder, MD

Petra J. Lewis, MD, MBBS, Section Chief

In my role as Breast Imaging Section Chief, I truly enjoy supervising a fantastic team of skilled technologists, radiologists, and our wonderful nurse navigator, all of whom are committed to supporting our patients on their breast health journey. By paying attention to every detail of a patient's experience in our division, we can transform what might be a stressful time into a much more manageable and comforting one.

Petra J. Lewis, MD, MBBS

Cardiothoracic imaging is a specialized field of radiology that focuses on imaging the heart, lungs, and chest. It encompasses a wide range of imaging techniques, including chest X-rays, CT scans, MRI, and ultrasound, used to diagnose and manage a variety of cardiovascular and pulmonary conditions.

Ruth W. Magera, MD, MBA, Section Chief

Our Emergency Radiology team is dedicated to ensuring round-the-clock, high-quality, timely trauma and emergent/acute radiology care. We are so happy to be part of a renowned health system and work with an exceptional team of talented, expert radiologists!

Ruth W. Magera, MD, MBA

Eric K. Hoffer, MD, Section Chief

Dartmouth Hitchcock Interventional Radiology provides state-of-the-art minimally invasive image-guided procedures, from standard biopsies and central venous catheter placements to highly specialized and complex thermal ablation of tumors and intra-arterial occlusion for bleeding. The physicians, associate providers, technologists and nurses work as an integrated team to ensure successful outcomes in an environment focused on patient comfort and satisfaction.

Eric Hoffer, MD

Stephanie Leon, PhD, Section Chief

Dartmouth Health's medical physicists are dedicated to optimizing the positive impact of the incredible technology available here. We combine healthcare and science to make our radiology services the best they can be.

Stephanie Leon, PhD

Jessica M. Sin, MD, PhD, Section Chief

I am very privileged to work with a team of musculoskeletal radiologists and providers who are profoundly and proudly committed to delivering outstanding care to all of our patients. We coordinate with rheumatology, sports medicine, and orthopedics to bring together the most brilliant minds in the field to help patients with musculoskeletal conditions.

Jessica M. Sin, MD, PhD

David A. Pastel, MD, Section Chief

Working in radiology at Dartmouth Health means being part of a friendly, family-like, tight-knit team that collaborates well between radiologists and referring clinicians. As the only academic medical center in New Hampshire, we encounter diverse and complex patients needing our help. Our department offers amazing opportunities for both clinical growth and academic engagement.

David A. Pastel, MD

Marc A. Seltzer, MD, Section Chief

It's an exciting time to be part of the Dartmouth Health Nuclear Medicine Section! Our service covers all aspects of nuclear medicine, including state of the art PET-CT and SPECT-CT imaging for oncologic, neurologic, and cardiac applications, as well as offering the latest FDA approved targeted radiotherapies for metastatic prostate cancer and neuroendocrine tumors.
We have an amazing team of specialized nuclear medicine radiologists and technologists, all committed to providing the best quality patient care possible.

Marc A. Seltzer, MD

Nuclear Medicine team

Matt Alfano, MD, Section Chief

Dartmouth Health Pediatric Radiology plays a vital role in nearly every aspect of pediatric care, collaborating closely with primary care providers and specialists alike. From diagnosing fractures to supporting the management of complex diseases, our team partners with exceptional care providers across the hospital and the broader community to deliver comprehensive, compassionate care for children and their families.

Matt Alfano, MD

Mark T. Hansberry, MD, Section Chief

I am truly excited to be a part of Regional Radiology in Dartmouth Health – which ensures local communities across our region receive specialized care and personalized attention, improving patient outcomes with a focus on innovation and evidence based practices. I enjoy our collaborative approach, working together to provide high-quality, patient-centered care while continuously striving to provide a more connected and efficient healthcare experience.

Mark T. Hansberry, MD

David D. Hou, MD, Section Chief

The Southern New Hampshire Radiology team is more than just a cohesive team; we are a united family that cares for each other and the community we serve. We love to live and work in the heart of New Hampshire and strive to provide the best quality of care for each individual we see. Working with such driven and passionate radiologists and staff makes me proud to be part of the group and the greater Dartmouth Health system.

David D. Hou, MD