Colorado Allergy and Asthma Centers

The team at Colorado Allergy & Asthma Centers is a great office, the staff is wonderful and Dr Tsai is absolutely amazing. The Nursing staff administering allergy shots and the Front desk are great. All staff is absolutely amazing. Thank you for all you do.

I’ve had several appointments with several providers and nurses and everyone’s gone out of their way to help me with complex issues. I’m very grateful for everyone’s help and persistence, going to this allergy and asthma center has improved the quality of my life greatly, everyone cares deeply about their clients and battles insurance companies and does research on complex issues to find the best solution. Without a doubt you will be taken care of here!

Dr. Tsai is truly one of the best doctors I’ve ever met. Not only is she exceptionally knowledgeable but she listens so well to her patients and is so upfront about next steps, cost, and options. She is truly an amazing physician!

Very clean; minimal wait time; EXCELLENT care provided - from the reception area to ALL medical staff! Every step of each procedure - and options availabled - was clearly explained.

Never knew how much difference allergy shots can help when you suffer from seasonal allergies as bad as I do. Found Colorado Allergy and Asthma Center, and through their guidance, I am 1000% better than I've ever been. Entire staff is professional, caring, and concerned about your health. Wish I'd discovered them years ago. 7/100/2026 - De Tsai is the best ever, every time I have an issue with my allergies or asthma, she fixes it. She is the most caring, capable, and knowledgeable doctor in my large list of various doctors.

Expert, insightful and age-appropriate medical care. Organized and efficient office in Denver. Very friendly staff.

The staff is very welcoming & professional. It was my first time coming last week and everyone made sure that I understood the process when receiving the shots. Kudos for a great experience.

Dr. Kempe is the best! Highly recommend!

Easy to get to the office, NP was knowledgeable, nurses were friendly. Testing went good.

Wonderful staff and Dr Lomas is awesome. Listened to all my concerns and gave me insights to what my issues were. I highly recommend this office and Dr. Lomas.