Wan-in Koo, DO

Family Medicine

1101 Highway K

O'Fallon, MO 63366 Directions

636-379-6363

www.ssmhealth.com

4.8 out of 5

86 verified ratings

86 Ratings, 27 Comments


The following ratings and reviews are based on verified feedback collected from independently administered patient experience surveys. The ratings and comments submitted by patients reflect their own views and opinions. Patient identities are withheld to ensure confidentiality and privacy.
Apr 1, 2025
She was incredibly thorough especially when I described an item I’ve been struggling with for years to provide excellent medical responses to my inquiries. Thank you.

Mar 19, 2025
Excellent care

Mar 4, 2025
My experience with Doctor Koo over the years has been exceptional! She really tries to understand everything going on with her patients in order to give the best treatment or recommendations. She's an excellent family physician.

Feb 12, 2025
I like her and her care for me. She is very knowledgeable and explains everything well and asks good questions.

Jan 31, 2025
She's thorough.

Jan 7, 2025
Great doctor been to lot of them

Dec 30, 2024
Dr Koo will follow up on your blood test as soon as they are available. The day they come in.

Dec 15, 2024
Best example of doctor/patient care, interaction and relationship.

Nov 22, 2024
Great doctor

Nov 3, 2024
She is having high knowledge

Oct 27, 2024
She is great, very understanding listens to what you say

Oct 25, 2024
Dr. Koo sincerely cares about her patients

Oct 22, 2024
She was beyond good

Oct 20, 2024
Dr Koo is very knowledgeable and knows the medication that I am on and makes sure that they are working properly.

Oct 4, 2024
Very helpful and compassionate

Oct 4, 2024
Dr. Koo was very attentive while I expressed my concerns. and

Aug 14, 2024
very good doctor

Aug 3, 2024
Exceptional care, great listening, and exceptional knowledge

Aug 1, 2024
Doctor Koo was very empathetic and she listened to what I said and showed sympathy and did everything she could to try to make me comfortable with the condition that I had

Jul 31, 2024
Friendly & careing

Jul 23, 2024
She listens,it's obvious she cares,and I respect her.

Jul 22, 2024
Nothing New. Dr. Koo has always been the best

Jul 6, 2024
She is a amazing doctor and she listen to what you have to say

May 21, 2024
Caring and understanding

May 10, 2024
I am glad Dr. KOO is my PCP.

Apr 24, 2024
Appreciate your help

Apr 23, 2024
Very thorough. Patient with older patients.