Dr. Mark Andrew Willoughby, MD

Dr. Mark Willoughby is a dermatologist who has dedicated 29 years to caring for patients with skin conditions and concerns. He earned his medical degree from Ohio State University College of Medicine & Public Health and completed his residency training at Cook County Hospital. His extensive experience allows him to provide comprehensive dermatological care with a focus on both medical and cosmetic treatments. Dr. Willoughby is fluent in Spanish and Chinese, enabling him to serve diverse patient communities.

Dr. Willoughby practices at multiple locations throughout San Diego and Chula Vista, California, and maintains hospital privileges at Sharp Coronado Hospital. He specializes in treating skin cancer, seborrheic keratosis, and actinic keratosis, helping patients address both common and complex skin conditions. His practice offers pathology testing and surgical pathology services to ensure accurate diagnoses and effective treatment plans. Patients consistently rate their care highly, …giving him an average rating of 4.6 out of 5 stars.