Dr. Deborah Witkin

Dr. Gregory G. Gensheimer is an ophthalmologist with MaineHealth, providing medical and surgical eye care focused on protecting long-term vision. He helps patients navigate everything from routine eye concerns to more complex changes in sight through careful exams, accurate diagnosis, and treatment plans tailored to each person’s daily needs. Dr. Gensheimer completed his ophthalmology residency at Wills Eye Hospital and earned his medical degree from the University of Rochester School of Medicine and Dentistry. He is board certified in ophthalmology. Within MaineHealth Ophthalmology, he evaluates and treats a wide range of eye conditions, including cataracts, glaucoma, infections and inflammation of the eye, and sudden or gradual changes in vision. He emphasizes prevention, early detection, and thoughtful follow-up so patients understand what to watch for and when to seek care.

Dr. Linda Schumacher-Feero is a board-certified ophthalmologist who has cared for patients in central Maine for many years. She joined Atlee Gleaton Eye Care in 1999 and is known for thoughtful, attentive visits that focus on both comfort and long-term eye health. She has a special interest in evaluating and treating dry eye symptoms, helping patients find practical relief and a plan they can follow at home. Dr. Schumacher-Feero was raised in Pittsburgh, Pennsylvania. After graduating from Allegheny College, she attended medical school at the University of Pittsburgh and completed her ophthalmology residency at the University of Pittsburgh Medical Center. She has served as teaching faculty at Veterans Administration medical centers in Togus and Washington, DC, and she volunteers with EyeCare America through the Foundation of the American Academy of Ophthalmology. She strives to deliver careful, evidence-based care with clear guidance at each step.

Dr. Brooke E. Miller is a board-certified comprehensive ophthalmologist who provides a wide spectrum of eye care, from routine exams to the evaluation and management of eye emergencies. She focuses on making visits straightforward and informative, taking time to explain what is happening and what to do next—especially when symptoms are sudden or concerning. Dr. Miller received her medical degree from the University of Rochester School of Medicine, where she was elected to Alpha Omega Alpha and the Gold Humanism Honor Society. She completed her ophthalmology residency at the University of Rochester Medical Center and earned her undergraduate degree from Wesleyan University. Prior to joining Maine Eye, she served as an attending physician at Tufts New England Eye Center in Boston. Committed to education, she serves on a national committee with the American Academy of Ophthalmology and is an assistant clinical professor at Tufts University School of Medicine.