Testimonials

I have a wonderful patient-doctor relationship with Dr. Koger. She remembers our previous conversations which encourages me to be open and honest about any dermatology concerns of mine. I moved out of state recently but still return for an annual checkup. Recently I brought my daughter for a 3rd opinion on her scalp condition because I have so much respect for Dr. Koger’s opinion. This 3rd opinion feels like the right one.

Dr. Koger is an exceptional dermatologist and care provider. Her communication is always clear and concise and she always answers my questions completely thoroughly. I feel truly cared for by Dr. Koger and am grateful to have her as my doctor.

The physicians assistants are always knowledgeable, thoughtful, and very helpful. It seems the entire staff at K2 Dermatology is just wonderful. They are an outstanding asset to this community.

K2 Dermatology (formerly Kallgren Dermatology) was recommended to me by my primary care physician. I have a high opinion of this practice, insomuch as a layman can judge. I never have to wait; they are always very courteous and professional. My practitioner never hesitates to use the liquid nitrogen spray on my small problems, which I think is a good thing.

I came in super nervous but my MA and my Dr. were very easy to work with. We had lots of laughs together for my very short visit. They took away any concerns I had and got me taken care of quickly and with care!! Thank you so much!!

Dr. Koger is an exceptional dermatologist and care provider. Her communication is always clear and concise and she always answers my questions completely thoroughly. I feel truly cared for by Dr. Koger and am grateful to have her as my doctor.

I’ve been seeing Dr. Koger for years at this clinic. Very personable with attention to detail and truly cares for her patients. Love all the staff as well. Highly recommend!

My experience at my recent visit was wonderful. The care was highly professional, kind and courteous.
I would highly recommend this practice.
🙏👏

I came back to K2 dermatology after my previous skin doctor moved away, and they were very welcoming and got me right in for an appointment. They were kind at the front desk and they got me right in to see Shannon Ross, who did a total body skin check and got my prescriptions sent in immediately. Great first visit!

Dr. Koger is an exceptional dermatologist and care provider. Her communication is always clear and concise and she always answers my questions completely thoroughly. I feel truly cared for by Dr. Koger and am grateful to have her as my doctor.

The physicians assistants are always knowledgeable, thoughtful, and very helpful. It seems the entire staff at K2 Dermatology is just wonderful. They are an outstanding asset to this community.

I was greeted warmly by Sarah who got the preliminary information from me and helped to show me where I could get needed services.
Shannon Ross, PA. was a rockstar. She not only attended to my concerns about my health while I was in the office, she called to followup throughout the day to see how I was progressing to get an appointment for an ultrasound. I told her I could get one Wednesday, but she said she wouldn’t be comfortable with that, knowing my family history. So she made an appointment for me near to where I live to get the ultrasound, and gave me a followup call to tell me what the radiologist found, which was no blood clotting. I was stressed out before but her efforts gave me peace. She’s an 11 on a 10 scale. K2 is wonderfully staffed with caring individuals. I hope they all know what an impact they make!

I’m a physician myself. This was my 3rd opinion for my horrid eczema. I’ve suffered, sometimes in tears and scratching to blood for years. Dr Koger and her amazing team listened to me, took my history and family history into account, and my desires/concerns for treatment. They provided a plan, samples of medication to try and evidence discussion to back it up.

By visit #2, my eczema was better than in YEARS. A very costly (generally insurance denied) medication was sent to pharmacy, prior authorization completed on the spot, and my medication arrived next day. For a mere copay.

I couldn’t be happier and couldn’t recommend this team more! If you want attention to your issues, commitment to improvement and actual work after you leave the office, K2 Dermatology is for you!

I scheduled a precautionary check up with K2 and was extremely impressed. My dermatologist, Kirsten, took exceptional care to patiently review any potential problem areas and to clearly explain what she was doing and what she was finding. I’m grateful for her help and happy to strongly recommend her.

I finally was able to see Dr. Kroger..she’s so wonderful that she’s extremely busy. I feel 100 percent confident after her full body skin examination.She is never too busy to explain and answer questions and concerns..Dr Koger is worth waiting to see.

Great, efficient, friendly, and thorough. I get to see them every six months.

I went into office and all the people in the office were ver professional and greeted me with a nice attitude. Thank you for the courteous and professional treatment had a great experience I will recommend this office to all my family and friends.

I’ve been a patient at K2 Dermatology for many years now, and I appreciate the thoroughness of my yearly exams. You really want a picky and knowledgeable dermatologist who investigates every tiny freckle and keeps great records about each little mark, and that’s how it is with Physician Assistant, Shannon Ross! Thanks, K2!

After going to several other dermatologists for a seemingly unsolvable problem, this place was recommended to me by one of my physicians. They did a painless and quick biopsy, prescribed me a steroid cream without hydrocortisone in it (finally), and the problem went away in 2 weeks, after two years of struggling. All the while, they were very easy to work with, professional, and kind.

I saw Dr. Koger for my annual full body check. Appointment was easy to make. It seemed that the doctor did a very thorough job. She was informative as to medical matters. She seemed very knowledgeable to me. She was also very pleasant. I was a patient of Dr. Kallgren for over 20 years and I have found the transition to Dr. Koger to have been seamless. I strongly recommend Dr. Koger and the K2 Dermatology clinic.

My kids and I have been patients of Dr. Koger for about five years. She is exceptionally thorough and knowledgeable when it comes to our various needs, and she goes above and beyond to make sure we are getting great care–proactively checking in to see how a prescribed medication is working a couple weeks/month out. Also, the staff has always been really professional; I appreciate that our appointments run on time.

This clinic is compassionate and friendly! Nice assistant, nice doctor and a great outcome with a problem that is painful and embarrassing. Another doctor didn’t even try. Many thanks to K2 in Boulder.

I was definitely a sunbaby in my youth. And since i’ve gotten older, I do Try to be responsible about my checkups… I appreciate your office and the ease of taking care of business, your staff are extremely caring and very patient. Everyone needs to keep in touch with your expertise. To make sure that our bodies get the care they need.