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Dr. Wan-In Koo, DO

Dr. Wan-In Koo, DO

Family Medicine*
25+ years of experience

Dr. Wan-In Koo, DO is a family medicine physician in O Fallon, MO and has over 25 years of experience in the medical field. She graduated from A. T. Still University Kirksville College of Osteopathic Medicine in 1998. She is affiliated with medical facilities SSM Health St. Joseph Hospital-Lake Saint Louis and SSM Health St. Joseph Hospital-St. Charles. She is accepting new patients.

3.5 Star Rating
Based on 29 reviews 3.5 Star Rating (29 reviews)

Practice

1101 Highway K O Fallon, MO 63366
(636) 379-6363

At a Glance

  • Area of Expertise
    Dr. Koo specializes in the area of Family Practice. • See board certifications
  • Friendly Staff
    Patients said the staff was friendly. • See reviews
  • Practices at Top Hospital
    Patient Safety Excellence Award™ • See hospitals
  • Easy Scheduling
    Patients said scheduling was easy. • See reviews
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Dr. Koo's Reviews

Likelihood to recommend Dr. Koo

3.5

29 ratings, 6 with a written review
5 Star
55%
55%
4 Star
7%
7%
3 Star
3%
3%
2 Star
3%
3%
1 Star
31%
31%

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RecentHighestLowestMost Helpful
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Nov 08, 2023
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What went well
No results
What could be improved
No results
5 people found this helpful
Helpful
Jan 18, 2022
×Post a ResponseAre you Dr. Wan-In Koo, DO?
What went well
No results
What could be improved
No results
2 people found this helpful
Helpful
Jun 03, 2021
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What went well
  • Appointment scheduling
  • Explained conditions well
  • Staff friendliness
What could be improved
  • Didn't trust the provider's decisions
  • Long wait times
2 people found this helpful
Helpful
Nov 30, 2020
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What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
1 person found this helpful
Helpful
Colleen bayer – Apr 13, 2020
×Post a ResponseAre you Dr. Wan-In Koo, DO?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
4 people found this helpful
Helpful
Steve Saunders in Foley, MO – May 16, 2016
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Leave a review

How was your experience with Dr. Koo?

Know Before You Go

About Me

biography

Dr. Koo is board certified in family medicine. She completed her internship at Deaconess Health System and completed her residency at Forest Park Hospital. Her medical degree was earned at Kirksville College of Osteopathic Medicine. Dr. Koo has...read more

  • Family Medicine

*Healthgrades does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.

  • A. T. Still University Kirksville College Of Osteopathic Medicine

    Medical School, 1998
American Board of Medical Specialties®
American Board of Family Medicine®
- 
Family Practice
For detailed information about any of the below board actions, please search for the provider's records on the linked state licensing board or the Federation of State Medical Boards. To learn more about the difference between these sources, please refer to our FAQs.
Healthgrades has not received any data indicating a board action exists for this provider.

Healthgrades receives board action history for physicians and physician assistants. The information displayed here is sourced from independent information providers, such as state board websites, and may not be the most up-to-date information. Healthgrades makes no representations with respect to the accuracy of any information provided here and assumes no responsibility or liability for such information.

Learn more about medical license public record check

  • English

  • Mandarin

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Locations

Practice

SSM Medical Group Inc.1101 Highway K O Fallon, MO 63366
1

Practice

Office301 Caledonia Pkwy Ste 150 O Fallon, MO 63368
2

Affiliated Hospitals

  • SSM Health St. Joseph Hospital-Lake Saint Louis

    100 Medical Plz
    Lake Saint Louis, MO 63367
    Recipient of 2
    hospital awards

    Patient Safety Excellence Award™ (2025)

    Top in the nation for providing excellence in patient safety by preventing infections, medical errors, and other preventable complications

    View all awards

    How patients felt about the care they received at this hospital.

    83%
    Patients said they were given information about recovering at home

    1% lower than the national average

    76%
    Patients said that nurses always listened to them and explained things well

    1% higher than the national average

    View all patient feedback

  • SSM Health St. Joseph Hospital-St. Charles

    300 1st Capitol Dr
    Saint Charles, MO 63301
    Recipient of 6
    hospital awards

    Patient Safety Excellence Award™ (2024, 2023)

    Top in the nation for providing excellence in patient safety by preventing infections, medical errors, and other preventable complications

    View all awards

    How patients felt about the care they received at this hospital.

    84%
    Patients said they were given information about recovering at home
    74%
    Patients said that nurses always listened to them and explained things well

    1% lower than the national average

    View all patient feedback
Learn more about how Healthgrades measures Hospital Quality