Donald J. Grande, MD, FACMS

Angel Diaz-Martinez, MD, M.S., a board-certified dermatologist, offers specialized services in adult and pediatric medical dermatology and cosmetic procedures. Located within APDerm’s offices in Winchester, Medford, and Stoneham, MA, Dr. Diaz emphasizes personalized treatment plans tailored to each patient’s unique needs and provides education on dermatological health. Dr. Diaz's clinical interests span from common conditions like acne and psoriasis to complex medical conditions, including immunobullous disorders. With a focus on surgical procedures, he performs excisions of both benign and malignant cutaneous lesions, ensuring comprehensive care for his patients. Born and raised in Puerto Rico, Dr. Diaz brings a commitment to diversity and inclusion in dermatology through educational initiatives and community outreach. His accolades include national scholarships and awards, showcasing his dedication to serving a diverse patient population and increasing diversity within the field of dermatology. Generated from the website content

Our Wilmington, MA dermatology office is located in the entrance on the left after Wilmington Town Museum. Mystic Valley Dermatology Associates is dedicated to medical excellence by utilizing advanced technology in the evaluation and treatment of medical, surgical and cosmetic skincare in both adults and children. Our board-certified physicians and allied health professionals combine extensive years of experience and cumulative knowledge along with a patient-centered approach to provide the highest quality care to the patients that we serve.

Kristin Mannke, FNP-C, DCNP, is a board-certified family nurse practitioner specializing in medical dermatology at Mystic Valley Dermatology Associates in Stoneham, Massachusetts. With over 14 years of diverse healthcare experience, she is adept at treating a wide range of dermatological conditions, including acne, eczema, and skin cancer. Kristin completed a two-year Nurse Practitioner Fellowship in Dermatology at Beth Israel Lahey Health and holds a Master of Science in Nursing from Oregon Health and Science University. Her commitment to patient care is complemented by her interests in hiking, dancing, and spending quality time with family and friends. Generated from the website