Board-Certified Dermatologist

Howard Rosenman, MD is board certified by the American Board of Dermatology. He provides patient-centric dermatologic care for a variety of skin conditions and patients with all skin types. He treats adults and children and provides medical, surgical, and cosmetic services.

Dr. Rosenman attended Syracuse University in New York and earned his medical degree at the State University of New York Downstate Medical Center in Brooklyn, NY. He completed his internship in Internal Medicine at Lankenau Hospital in Wynnewood, PA. His residency in dermatology was at Kings County Hospital in Brooklyn, NY where he was the Chief Resident in Dermatology. He also served as Chief of Dermatology at Capital Health Systems.

Dr. Rosenman currently serves as a Clinical Professor of Dermatology at the University of Pennsylvania. He is a member of the American Academy of Dermatology, the Pennsylvania Medical Society, the Bucks County Medical Society, the Pennsylvania Academy of Dermatology, and the Philadelphia Dermatological Society.

Board-Certified Dermatologist

Linda Leventhal, MD, PhD, is board certified by the American Academy of Dermatology. She practices medical, surgical, and cosmetic Dermatology. She treats children and adults with a wide variety of skin conditions.

Dr. Leventhal earned her MD and PhD at Drexel University College of Medicine in Philadelphia, PA. Special recognition was awarded to her with selection to the Alpha Omega Alpha Medical Honor Society in her junior year of medical school and she was chosen to serve as president.

She completed her internship in Internal Medicine at Albert Einstein Medical Center in Philadelphia, PA. She went on to receive her Dermatology Residency training at the Hospital of the University of Pennsylvania in Philadelphia, PA.  She was selected to serve as Chief Resident during her final year.

Dr. Leventhal is a Fellow of the American Academy of Dermatology and is a member of the Women’s Dermatology Society, the Philadelphia Dermatology Society, Pennsylvania Medical Society, Bucks County Medical Society, and the Pennsylvania Academy of Dermatology.

Board-Certified Dermatologist 

Dr. Karen Deasey graduated from Dickinson College with a Bachelor’s degree in Biology before going on to attend the Medical College of Pennsylvania. She completed her internship at Abington Memorial Hospital and her dermatology residency at the Hospital at the University of Pennsylvania in Philadelphia. Dr. Deasey opened her Dermatology practice in Bryn Mawr in 1980. She has also served as Chief of Service for Dermatology for the Main Line Health System.

Dr. Deasey is a board-certified dermatologist with an active practice in Bryn Mawr. She enjoys all aspects of skin diseases, particularly complex rashes, psoriasis, atopic dermatitis, and the diagnosis and treatment of skin cancers and melanoma. She believes in treating the whole patient, always asking questions about their overall health in addition to treating their skin concerns. She sees patients of all ages and strives to provide a warm and welcoming environment from the minute patients walk into her office.

Dr. Deasey is an active member of the PA Academy of Dermatology, PA Medical Society, American Academy of Dermatology, the Philadelphia Dermatology Society, and the Philadelphia Medical Club of Women.

She lives with her husband, Frank, and has two adult sons. In her free time, Dr. Deasey is an avid gardener and attempts to play golf. She loves to travel with her husband and is an active member of her church, singing in the church choir.