CT Derm PC
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CT Derm PC
As a dermatologist, Dr. Carl Thornfeldt's goal for every patient is to not only provide effective and safe treatments for a range of skin conditions, but also education and preventive strategies to combat everything from cancer and other diseases to medical and cosmetic issues caused by aging. His passion as a dermatologist is to provide cutting-edge care typical of an urban setting to small-town rural communities.

A published author, constant researcher, and nationally recognized doctor with more than four decades of experience, he also founded the clinically backed Epionce(R) skincare line known for its simplicity, effectiveness, and proven results. As a clinical dermatologist, Dr. Carl Thornfeldt created Epionce(R) to be the science-backed solution to specific skin concerns.
Services
At CT Derm, we understand the effect that your internal health can have on your external appearance. Dr. Carl Thornfeldt is a highly published dermatologist who has devoted his life to understanding your skin and how your internal health impacts it. He takes pride in educating others in the structure and function of skin and its components.
At CT Derm, our story is simple: As the premier board-certified dermatologist in the Treasure Valley, Dr. Carl Thornfeldt is on a mission to stamp out skin cancer and other dermatological diseases. Understanding your skin and how it works is his specialty. He takes great pride in delivering exceptional care and leads a team of highly trained professionals chosen because of their same commitment and skill to excellence.
Treat acne breakouts and prevent future flare-ups, as well as reduce the appearance of acne scarring from cystic or nodular acne. While proper diagnosis and rapid, effective treatment for skin cancer are incredibly important, minimizing risk through prevention is the best strategy.

Medical dermatology services available at CT Derm focus not only on diagnosis, managing symptoms, and resolving the problem if possible, but also on education and prevention.A near-universal skin condition, acne is the result of clogged pores, which can develop into minor inconveniences like whiteheads and blackheads, or become inflamed and cause pimples-or even severe cysts and nodules-to form.
Need to schedule an appointment? Have a general question for our staff? All of the interaction with the staff, technicians and doctors have been professional and friendly. The staff is efficient, the wait times are minimal, and the care is exceptional. I highly recommend CTDerm. I have known from a distance that Dr. Thornfeldt and his staff were very good.
Thank you for considering CT Derm for your skin health! Our team of providers is passionate about optimizing your skin health to improve your quality of life. We understand that you have choices, and we are privileged that you have chosen us. We would like to ensure that your visit with us goes as smoothly and efficiently as possible, so we have made a variety of patient resources available on our site.
Reviews (12)
Misty Anderson
Misty Anderson
Jan 20, 2022
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These gals are SO AMAZING!!!! They were very nice and made the appointment feel more like a friendly chit chat than a visit to the doctor. Joie is the best! She talks you through everything she is doing as she does it and explains things so you know what is happening and why. She has you laughing from start to finish
Bill Hollingsworth
Bill Hollingsworth
Dec 05, 2021
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Very timely getting in. Dr. T very thorough in checking skin condition. Had 3 suspicious spots frozen. I've gone to Dr. T for years and years. He has me coming in every 6mos for a skin condition checkup. When you want the best, you go to the best. Bill
Silas Moe
Silas Moe
Oct 25, 2021
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I had two suspicious spots removed by different people at CT derm. One of which was Dr. Thornfeldt. Both times the sutures were done poorly and they came undone within 4-5 days. I now have massive 2” wide scars on my back from their poor work. I followed the instructions for wound care and staying still to the letter. It was merely their poor sutures that left me with these huge scars. That was over a year ago, and even though I’ve called the billing department and paid my bill in full, they still send me bills with late fees and increasing costs. And yet every time I call them they tell me
Kelley Phipps
Kelley Phipps
Jun 18, 2021
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Dr. Thornfeldt has managed my autoimmune disease for the past 14 years. He is incredibly knowledgeable and informative. He takes a personal interest in his patients and their wellbeing. I am so thankful to have him on my healthcare team!
Levi'S. Harvest Llc
Levi'S. Harvest Llc
Jun 15, 2021
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I got laser hair removal on my face. they where wonderful with me...and very kind. I recommend them to other woman with this problem. and the price was surprising low. I should of done this years ago.
Elisha Ferguson
Elisha Ferguson
May 25, 2021
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I have received Botox with their Nurse Practitioners Brittany and Jeanna at their Fruitland location and I’m so impressed with the results! They have both been so professional! I highly recommend this location for Botox!
Larry Goodwin
Larry Goodwin
May 19, 2021
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I am so grateful to this group for helping me resolve a decades-long search for a correct diagnosis. Dr. Thornfeldt's insight and expertise have set me on a path of recovery and healing. To have others tell me that the condition was this or that but never able to reverse it or treat it was so frustrating I almost gave up. Wish I had consulted CT Derm PC sooner.
R. Miller
R. Miller
Jan 09, 2021
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The care given at CT Derm is of high quality. The staff is friendly and very helpful. Dr. Thornfeldt is a caring, exacting, knowledgeable physician sharing his skills in amazing ways. One is blessed to be under his care.
Katie F.
Katie F.
Feb 22, 2020
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I absolutely LOVE the Medspa!! I have had Microdermabrasion, Micro-needling, Hydrating Facials, and Laser Treatments. Joie is always very gentle with my sensitive skin, and the Epionce products have helped me conquer Rosacea. I get carded regularly at 42.
Fred Taggart
Fred Taggart
Jan 05, 2020
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I came in and was greeted by very pleasant staff. They where great with getting paperwork done online My wait was not long at all and was brought back by a very friendly staff member. The Doctor was very attentive and listened to more then just my issues for him. Like he really tried to get to know me. Overall would recommend anyone.
Naz Kreiner
Naz Kreiner
Jul 15, 2019
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Had an amazing experience. They did a full body skin check with samples taken from a few places. Dr. Thornfeldt is extremely knowledgeable and explained everything to me in a way that I understood. I have never been more happy to come to a doctor’s office and felt more welcomed. I think everyone should come in for a skin check
Julie P.
Julie P.
Jul 11, 2018
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Terrible place to go for cosmetic procedures! Treat you with no respect!