Rebecca Esther Khamishon, MD

Daniel J. Lewis, M.D. is a dual fellowship-trained Mohs and reconstructive surgeon and Assistant Professor of Dermatology at Johns Hopkins University School of Medicine. He leads the Mohs surgery unit at the Johns Hopkins Outpatient Center (JHOC), the hospital's flagship facility in downtown Baltimore. He is also heavily involved in education as the director of the JHOC resident surgery clinic and as core faculty for the Micrographic Surgery and Dermatologic Oncology fellowship. Dr. Lewis earned a B.A. in Biology from the University of Pennsylvania, earned his M.D. at Baylor College of Medicine while completing a research fellowship at The University of Texas MD Anderson Cancer Center, and completed his internship at Memorial Sloan Kettering Cancer Center. He then returned to Penn for dermatology residency, serving as chief resident at the country's No. 1-ranked dermatology program by Doximity. At Penn, he pursued further specialization with two year-long post-doctoral fellowships in cutaneous oncology and Mohs micrographic surgery. During his Mohs fellowship at Penn, Dr. Lewis worked at the largest academic Mohs surgery center in the country alongside leaders in the field and pioneers in the use of Mohs surgery with immunohistochemistry, complex reconstruction, high-risk tumors, and tumors on specialty sites. Dr. Lewis has authored over 90 peer-reviewed manuscripts in high-impact journals such as Journal of the American Academy of Dermatology, JAMA Dermatology, and Journal of Investigative Dermatology. He has also served on the Editorial Board of the International Journal of Dermatology and has authored multiple textbook chapters as well as two editions of the book Practical Ways to Improve Patient Adherence, named the winner of the 2022 "Best Overall" Dermie Award by Dermasphere. Dr. Lewis is an aspiring leader in cutaneous oncology and was named Post-Doctoral Trainee of the Year in 2022 by ADEN, winner of the 2022 ASDS Young Investigators Writing Competition, and a Rising Scholar by the Dermatology Foundation in 2023. He is a member of the Alpha Omega Alpha Honor Medical Society. He is passionate about Mohs micrographic surgery and has clinical interests in advanced facial reconstruction, Mohs surgery with immunohistochemistry, facial anatomy, Merkel cell carcinoma, melanoma, and patient adherence.

Mari Groves is a Johns Hopkins pediatric neurosurgeon who cares for children with brain and spinal cord tumors (benign and cancerous), skeletal dysplasia, and spinal deformities such as neuromuscular and early scoliosis. She also sees patients diagnosed with Chiari malformations, spasticity and epilepsy. She specializes in treating patients with all types of spina bifida, including myelomeningocele. As part of the Johns Hopkins Center for Fetal Therapy, she is an expert in prenatal closure techniques such as minimally invasive fetoscopic repair of myelomeningocele (when the spina bifida defect is repaired before birth). Offering a transitional practice model of care, she follows patients diagnosed with spina bifida from birth to adulthood. Dr. Groves chose to pursue neurosurgery because it allows her to treat patients with complex conditions and help improve the quality of children’s lives. Her research interests focus on pediatric spinal disease and how surgical intervention can impact growth and neurological function during a child’s life. She is committed to building programs that support patients with congenital disorders as they age. Pediatric patients often age out of existing programs and have difficulty locating physicians and treating teams that understand their conditions. At Johns Hopkins, we have a unique ability to provide this type of comprehensive care. Dr. Groves earned her medical degree from the Vanderbilt University School of Medicine in 2007. She completed residency training in 2014 at The Johns Hopkins Hospital, where she remained for a neurosurgery fellowship, which she finished in 2015. She also completed a spinal deformity fellowship at Shriners Hospitals for Children in Philadelphia.