Summary

Dr. William Yoon is a family medicine physician who has been caring for patients for 27 years. He earned his Doctor of Osteopathy degree from Western University Health Sciences College of Osteopathic Medicine of the Pacific. Dr. Yoon provides comprehensive primary care services with a focus on preventive medicine and chronic disease management. He is fluent in both English and Spanish, allowing him to serve diverse patient populations effectively.

Dr. Yoon practices at Kaiser Foundation Hospital locations in Ontario and Fontana, California. He specializes in treating common health conditions including obesity, high blood pressure, and type 2 diabetes. His practice emphasizes preventive care through adult immunizations and flu vaccines. Patients have given Dr. Yoon an average rating of 4.0 on Vitals, reflecting their confidence in his medical expertise and patient care approach.

Overview based on verified provider data

Quick Facts

  • 4
  • 27 years of experience
  • 33 insurance plans accepted
  • speaks English, Spanish
  • Western Univ Health Sci College Of Osteopathic Medicine Of The Pacific
  • 2 written reviews
  • 1 specialty
  • 9 areas of expertise
  • 1 hospital affiliation
  • 2 office locations
  • Male

Patients’ Perspective

  • Gave an accurate diagnosis
  • Had a good bedside manner
  • Spent time with me

Office Locations

Dr. William W Yoon has 2 locations

Kaiser Permanente Ontario Medical Center

2295 S Vineyard AveOntario, CA 91761
Mon7:00 am - 7:00 pm
Tue7:00 am - 7:00 pm
Wed7:00 am - 7:00 pm
Thu7:00 am - 7:00 pm
Fri7:00 am - 7:00 pm
Sat7:00 am - 12:00 pm
SunClosed

Kaiser Foundation Hospital

9961 Sierra AveFontana, CA 92335

Compare with Similar Doctors

Dr. William W Yoon, DO
Michael Benavidez, DO
Katherine Foley, FNP, ARPN
Dr. Samantha Von Ins, MD
Dr. William W Yoon, DOMichael Benavidez, DOKatherine Foley, FNP, ARPNDr. Samantha Von Ins, MD
Family MedicineFamily MedicineFamily MedicineFamily Medicine
Accepts New Patients Accepts New Patients Accepts New Patients
3.7 
27 Years of Experience 34 Years of Experience 16 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option Virtual Visit Available
Speaks English, Spanish Speaks English, Spanish Speaks English Speaks Spanish, Vietnamese
Ontario , CAUpland , CANorth Bergen , NJPlacentia , CA
Med School: Western Univ Health Sci College Of Osteopathic Medicine Of The Pacific Med School: Western University of Health Sciences Med School: University Of California Irvine College Of Medicine
Current Profile
View Profile View Profile View Profile

Insurance Plans Accepted by Dr. William W Yoon

  • Aetna
  • Alignment Health Plan
  • AlphaCare
  • Anthem Blue Cross
  • BLUE CROSS of CALIFORNIA
  • BLUE CROSS of CALIFORNIA - HMO
  • Blue Shield of California
  • Blue Shield of California - HMO
  • CalOptima
  • CareMore
  • CHAMPVA
  • Cigna
  • Contra Costa Health Plan
  • Health Net - HMO
  • Inland Empire Health Plan
  • Inland Empire Health Plan - Medicaid
  • Kaiser Permanente
  • Kaiser Permanente - DHMO
  • Kaiser Permanente - HMO
  • Kaiser Permanente - Medicaid (Managed)
  • Kaiser Permanente - PPO
  • L.A. Care Health Plan
  • L.A. Care Health Plan - HMO
  • Medicare
  • Medicare - Medicaid
  • Medicare - Medicare
  • Molina Healthcare
  • Molina Healthcare - Medicaid
  • Optum Health
  • SCAN Health Plan - HMO
  • Tricare
  • UnitedHealthcare
  • UnitedHealthcare - HMO

Medical Specialties

Dr. William W Yoon has the following specialty

Specialty Expertise

Dr. William W Yoon has the following 9 areas of expertise

  • Check-up
  • Contraception
  • Diabetes
  • Diabetes Complications
  • Family Planning
  • Immunization
  • Influenza
  • Weight Loss
  • Weight Loss (non-surgical)

Certifications, License, & Education

27 Years Experience

Dr. William W Yoon holds an active medical license in the state of California.

Medical License

Doctor Of Osteopathy with an active medical license in the state of California that expires in 2027.

Education & Training

Medical School

Graduated from Western Univ Health Sci College Of Osteopathic Medicine Of The Pacific in 1999.

NPI Number

Dr. Yoon's NPI number is 1770650509.

Similar doctors

Frequently Asked Questions

What languages does Dr. William Yoon speak?
Dr. William Yoon speaks English and Spanish.
Where is Dr. William Yoon's office located?
Dr. William Yoon's office is located at 2295 S Vineyard Ave, Ontario, CA, 91761.
Does Dr. William Yoon accept my insurance?
You can see the insurance plans that Dr. William Yoon accepts on their Vitals profile.
Is Dr. William Yoon accepting new patients?
Dr. William Yoon has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
How can I make an appointment with Dr. William Yoon?
You can find contact information for Dr. William Yoon here on Vitals.

Ensuring Data Transparency and Trust: A Guide to Vitals Doctor Listings and Reviews

Our provider data is gathered directly from physicians and publicly available databases. Providers who verify their profiles gain the ability to update information, offering additional details about their specialties,education, treated conditions, performed procedures, and accepted insurances.

Reviews on Vitals are submitted by users only. Recognizing the valuable insights these reviews offer into a doctor's reputation, we maintain internal policies and protocols to ensure the quality and accuracy of all reviews. Importantly, providers cannot delete or alter reviews independently. Reviews can only be deleted or changed following an internal assessment by our customer service team.

Your feedback is highly valued and we encourage you to contact our support team should you encounter any issues.