Dr. Duyen K. Nguyen, DO

Highly unprofessional. Unwilling to answer questions and became aggressive when we asked questions. She "diagnosed" my son based off zero history (because she did not ask any questions), no physical exam, and no testing. I would strongly consider finding a different allergist who will at least introduce herself and ask for your medical history before jumping to a diagnosis.

Dr. Nguyen is the best! She has always treated me kindly and with respect, asked about my family and greets me with a hug. Never dismissed any of my symptoms or concerns. She is very knowledgeable in what she does and helped me manage my condition. The entire office staff is very friendly. I have never had a problem with this office in all the years i have been coming. Highly recomend.

I want to commend Dr. Nguyen for the wonderful and engaged patient care she has given me since. She is extremely thorough and caring. Also, I would like to recognize Eryn, she is the “Practice Manager” at the Katy Office. She went above and beyond with a follow up call! I would like to recognize Kat and Meagan from the CT Scan area in the Katy Office. Ms. Lesley at the checkout counter as well.

Dr. Nguyen and her staff are attentive and caring. They take time to capture all your information and answers any questions. She has been more knowledgeable about my condition than any other doctor and has greatly helped to manage my chronic symptoms. I would highly recommend!

Growing up on a farm in Missouri being allergic to trees and grasses were never an issue! But after nearly twenty years of my adult life in Houston my allergies had gotten so bad I wasn't sleeping , breathing was difficult and sneezing between coughing fits... I was miserable! Being at wits end I finally called the Allergy Center. Dr. Nguyen was awesome in explaining the symptoms, the testing process, and outlining my personal treatment plan. I despise taking medicine and it seemed overkill to get shots every week (only initially - I am now on monthly maintenance) but once I committed to what Dr. Nguyen prescribed I finally begin to get some relief! I am now sleeping, have very few symptoms, and if I am planning to be outside a long time I take an Allegra beforehand and I am good for the day. Thank you, Dr. Nguyen!