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Dr. William Yoon, DO

Dr. William Yoon, DO

Family Medicine*
25+ years of experience

Dr. William Yoon, DO is a family medicine physician in Ontario, CA and has over 25 years of experience in the medical field. He graduated from Western University of Health Sciences in 1999. He is affiliated with medical facilities Kaiser Permanente Fontana Medical Center and Kaiser Permanente Riverside Medical Center. He is accepting new patients and telehealth appointments.

1.7 Star Rating
Based on 12 reviews 1.7 Star Rating (12 reviews)

Practice

2295 S Vineyard Ave Ontario, CA 91761
Telehealth available

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Dr. Yoon's Reviews

Likelihood to recommend Dr. Yoon

1.7

12 ratings, 7 with a written review
5 Star
17%
17%
4 Star
0%
0%
3 Star
0%
0%
2 Star
0%
0%
1 Star
83%
83%

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RecentHighestLowestMost Helpful
What went well
No results
What could be improved
  • Difficult to schedule appointment
  • Didn't listen or answer questions
  • Didn't explain conditions well
  • Appointment was rushed
  • Didn't trust the provider's decisions
  • Long wait times
1 person found this helpful
Helpful
Big no – Sep 16, 2021
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What went well
No results
What could be improved
  • Difficult to schedule appointment
  • Didn't listen or answer questions
  • Didn't explain conditions well
  • Appointment was rushed
  • Didn't trust the provider's decisions
  • Long wait times
Helpful
Aug 19, 2021
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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
Helpful
Cheanaze Taibjee – Sep 29, 2020
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What went well
  • Appointment scheduling
What could be improved
  • Didn't listen or answer questions
  • Didn't explain conditions well
1 person found this helpful
Helpful
Aug 22, 2020
×Post a ResponseAre you Dr. William Yoon, DO?
What went well
  • Staff friendliness
  • Wait times
What could be improved
  • Difficult to schedule appointment
  • Didn't listen or answer questions
  • Didn't explain conditions well
  • Appointment was rushed
  • Didn't trust the provider's decisions
2 people found this helpful
Helpful
Jan 18, 2020
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What went well
  • Appointment scheduling
  • Staff friendliness
  • Wait times
What could be improved
  • Didn't listen or answer questions
  • Didn't explain conditions well
  • Didn't trust the provider's decisions
5 people found this helpful
Helpful
Ontario – Nov 09, 2018
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What went well
  • Appointment scheduling
  • Staff friendliness
What could be improved
  • Didn't listen or answer questions
  • Didn't explain conditions well
  • Appointment was rushed
  • Didn't trust the provider's decisions
7 people found this helpful
Helpful
Rob in Ontario, CA – Sep 30, 2016
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About Me

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Health care leader whose mission is to keep you healthy. Under-one-roof convenience, 24-hour advice nurse, and online access to manage your health - anytime.
  • 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.

  • Western University Of Health Sciences

    Medical School, 1999
American Board of Medical Specialties®
American Board of Family Medicine
Family Practice
Self designated 
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.

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Locations

Practice

Kaiser Foundation Hospital-Ontario2295 S Vineyard Ave Ontario, CA 91761
1

Practice

Kaiser Permanente Fontana Medical Center9961 Sierra Ave Fontana, CA 92335
2