Combining years of experience with passionate patient care, pH7 Dermatology in Johnson City, TN provides dermatology services and solutions to your skincare challenges. Let our staff develop a customized care plan for your unique needs to help you see your best skin possible. Business Owner and Point of Contact - Pamela Davis MS, PA-C Physician Assistant. Point of Contact Phone - 423-282-3376 Point of Contact Email - [email protected]