With more than 55 years in dermatology, Alan H Chaitin, MD, is among the longest-practicing skin specialists in San Diego, treating patients at Kaiser Permanente Zion Medical Center in Allied Gardens at 4647 Zion Ave in the 92120 ZIP. He graduated from Drexel University College of Medicine in 1966, completed a transitional-year internship at UCLA David Geffen School of Medicine, and finished his dermatology residency at Boston University Medical Center from 1969 to 1972. He holds board certification from the American Board of Dermatology and practices within the Southern California Permanente Medical Group. Post-Mohs reconstruction cases and complex dermatologic surgical referrals from his practice connect to reconstructive surgeons in the area, and Handler Barry S MD in Grantville handles cosmetic and reconstructive procedures for patients requiring tissue repair after skin cancer excision. His clinical scope spans the full dermatology spectrum: medical management of eczema, psoriasis, acne, and rosacea through to procedural work including skin biopsies, cryotherapy for precancerous actinic keratoses, and lesion excision. The Kaiser Zion campus in Allied Gardens sits between the I-8 freeway and Waring Road, and the dermatology department serves the east San Diego catchment that runs from College Area through Grantville and into La Mesa. The duration of his practice — spanning from the early 1970s through the present — means his patient relationships in some cases cover longitudinal skin surveillance across multiple decades, a continuity that matters for melanoma screening in patients with extensive sun-exposure histories. Exercise-related dermatologic concerns among his active-lifestyle patients connect to the fitness corridor, and Planet Fitness in College Area's University Square draws the demographic most prone to contact dermatitis from gym equipment and exercise-induced urticaria. He practices at Kaiser's Zion facility and at the Garfield Specialty Center on Copley Drive.