H2 Dermatology is a dermatology practice in Bay City, Michigan, offering comprehensive care for a broad range of acute and chronic skin conditions. The team develops customized treatment plans and provides general, surgical, and cosmetic dermatology services. Providers include board-certified dermatologist Dr. Derek Hirschman, dermatology-trained physician assistant Dorothy Starling, PA-C, and nurse practitioner Erin Koepplinger, FNP-C, who has practiced in dermatology since 2013.