Our Story

CT Derm Logo

Dr. Carl Thornfeldt is the premier Board Certified Dermatologist in the Treasure Valley. Dr. Thornfeldt is on a mission to stamp out disease and skin cancer. Understanding your skin and how it works is his specialty. He and his team of highly trained professionals take great pride in delivering exceptional care.

Originally located in Ontario Oregon, and once called Treasure Valley Dermatology Clinic, Dr. Carl Thornfeldt's dermatology office opened in 1983. In the many years since he treated his first patient, Dr. Thornfeldt and his family have witnessed first hand the growth and progression of the rural area that he chose to serve. In 2002, he and his wife Marlene decided that a bigger facility was needed to house the growing practice. Hence, in 2003, CT Derm opened its doors at their current location in Fruitland, Idaho.


Epionce Logo

Developed by Dr. Thornfeldt after several years of rigorous clinical trials, Epionce goes beyond basic skin care. Based on real science and focused on the delivery of natural botanicals, Epionce penetrates deep to improve your skin barrier and function. The Epionce skin wellness line is highly adaptable to any skin type in any climate.

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MedSpa by CT Derm logo

The MedSpa was established to safely satisfy our clients' desire to have access to procedures that would improve their overall appearance. Chemical peels and various laser treatments had been offered for several years at CT Derm, mostly for the treatment of skin disease. So it was natural, with the advancement of medical esthetics, to act upon our clients' request and deliver a full service Medical Spa that would put equal focus on exceptional results and client education. With the inception of the MedSpa, Dr. Thornfeldt has established a team of professionals that are ready to help you with your skin care concerns.

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