Dr. Kenneth Taubenslag

Ophthalmology – Retina Specialist

Baltimore, MD

Dr. Kenneth J. Taubenslag is a vitreoretinal surgeon and uveitis specialist with the University of Maryland Medical System. He cares for patients with medical and surgical retina conditions and inflammatory eye disease, offering meticulous evaluation, evidence-based treatment, and clear counseling about recovery and long-term care. As an Assistant Professor of Ophthalmology & Visual Sciences, he is committed to teaching and collaborative, multidisciplinary care. Dr. Taubenslag earned his MD from Vanderbilt University School of Medicine and completed an internship with UPMC, ophthalmology residency at the University of Pittsburgh, and a fellowship in Vitreoretinal Diseases and Surgery at Vanderbilt Eye Institute. He is certified by the American Board of Ophthalmology. Patients seen in Baltimore and at the Midtown Campus benefit from his experience with modern retinal imaging, office-based injection therapies, retinal laser, and advanced surgical techniques.

Dr. Mariam Mathai

Ophthalmology – Retina Specialist

Greenbelt, MD

Dr. Mariam Mathai is a vitreoretinal surgeon with The Retina Group of Washington who provides medical and surgical care for a wide range of retinal diseases. She offers the latest, research-backed techniques in the clinic and operating room, including modern vitrectomy approaches, and is committed to clear communication and compassionate, patient-centered decisions. Her interests include teaching and clinical research, with presentations at national meetings and publications in leading ophthalmology journals. Dr. Mathai graduated summa cum laude from Washington University in St. Louis, earned her medical degree at the Icahn School of Medicine at Mount Sinai, and completed an internal medicine internship at Mount Sinai Beth Israel. She served as chief resident during her ophthalmology residency at MedStar Georgetown University/Washington Hospital Center and then completed a two-year fellowship in vitreoretinal diseases and surgery through Georgetown University Hospital, Washington Hospital Center, and The Retina Group of Washington.

Dr. Tiarnan Keenan

Ophthalmology – Retina Specialist

Bethesda, MD

Dr. Tiarnán Keenan is a staff clinician and Stadtman Investigator at the National Eye Institute whose work centers on adult retinal disease, particularly age-related macular degeneration (AMD). His clinical and research program spans genetics, biochemistry, imaging, epidemiology, and clinical trials to improve diagnosis, understand mechanisms, and develop more effective prevention and treatment strategies for AMD, including geographic atrophy. Patients and collaborators value his ability to translate cutting-edge data into practical, patient-centered care strategies. Dr. Keenan received his undergraduate and medical degrees from the University of Oxford. He earned a Ph.D. from the University of Manchester for biochemical analyses of human macular tissue related to AMD and completed fellowship training in medical retinal disease at the National Eye Institute. His prior academic-clinical training included work at Manchester Royal Eye Hospital and the Oxford Eye Hospital, and he is a fellow of the UK Royal College of Ophthalmologists.