Karen Preston

Karen “Kiera” Preston is a board-certified family nurse practitioner and the founder of WellPathNP, a functional medicine practice in Foreside, Maine, dedicated to helping individuals uncover the root causes of chronic illness.

With a deep commitment to personalized care, Kiera blends evidence-based functional medicine with traditional Western medical practices to create comprehensive treatment plans that address your health concerns and goals at a deeper level.

At WellPathNP, Kiera empowers her patients to take charge of their health through advanced testing, lifestyle interventions, and science-backed therapies. Her approach is grounded in whole body health, restorative strategies, and the belief that lasting wellness comes from understanding the why behind symptoms, not just treating them.

Kiera has built a reputation for compassionate, thoughtful care and a dedication to lifelong learning. She stays at the forefront of clinical research and functional medicine innovations to ensure her patients receive the most effective support possible.

When she’s not working with patients, Kiera enjoys spending time with her family, tending to her garden, hiking, traveling, and relaxing with her two dogs.