Home › Top 4 Dermatologist in El Cajon, California Find best Dermatologist in El Cajon, California, with all necessary contact information, including addresses, phone numbers, working hours, map locations, and website links. Skin & Skin Cancer Medical Group US, El Cajon, CA 920211625 E Main St #103 Jennifer Chiang US, El Cajon, CA 92020292 Avocado Ave Michael Thoene, M.D. US, El Cajon, CA 92020514 S Magnolia Ave Briana Wischnack, NP US, El Cajon, CA 92020133 W Main St UNIT 100