Maine Medical Center
Dr. Gerding in OR

Program Leadership & Faculty

Our physician and advanced practice provider radiology faculty members belong to Spectrum Healthcare Partners, which is Maine’s largest, multi-specialty, physician owned and directed medical organization that consists of over 200 physicians practicing in anesthesiology, orthopedics, pain management, pathology, radiology, radiation oncology, and vascular and interventional services throughout Maine and eastern New Hampshire. All radiology physician faculty members have academic appointments at Tufts University School of Medicine in Boston, MA. The radiology physician faculty consists of 36 radiologists and 3 advanced practice providers with subspecialty expertise including interventional radiology, neuroradiology, musculoskeletal radiology, cardiothoracic radiology, breast radiology (women’s imaging), abdominal radiology/body imaging, pediatric radiology, ultrasonography, and nuclear medicine. Although nearly all of the radiology physician faculty members are fellowship-trained and primarily practice radiology within their areas of expertise, all practice general radiology as well. Furthermore, some of the radiology physicians are faculty at the MMC Hannaford Center for Safety, Innovation & Simulation.

Program Leadership

Sharon Siegel, M.D.
Department Chief

Michael DiGianvittorio, D.O.
Associate Program Director, Diagnostic Radiology Residency

Joseph Gerding, M.D.
Program Director, Interventional Radiology Residency

Erich Russell, M.D.
Assistant Program Director, Interventional Radiology Residency

Jennifer Talmadge, M.D.
Program Director, Diagnostic Radiology Residency
Associate Program Director, Interventional Radiology Residency


Steve Amberson, M.D.
Brett Applebaum, M.D.
Christina Cinelli, M.D.
Cydney Cox, M.D.
Ethan Dobrow, M.D.
Thomas Dykes, M.D.
Steven Farraher, M.D.
Scott Fredericks, M.D.
Elise Hotaling, M.D.
Paul Kim, M.D.
Andrew Landes, M.D
Brian Livingston, M.D.
Christine Meade, M.D.
Derek Mittleider, M.D.
Sean Novak, M.D.
Elizabeth Pietras, M.D.
Michael Quinn, M.D.
Elena Resnick, M.D.
Kaitlyn Weidenbach, M.D.
Steven Winn, M.D.