Lynne A Mastervich, PA-C

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.