Meet Stephanie Cullinane, PA-C Stephanie Cullinane, PA-C joined Southern Marin Dermatology in 2025 after 24 years of practicing medical and cosmetic dermatology in Mill Valley. Known for her thoughtful, thorough care, PA Stephanie has built a thriving practice rooted in word-of-mouth referrals and lasting relationships with patients and families throughout Marin. She is now seeing … Continue reading Stephanie Cullinane, PA-C