Office Queries

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  • What are your office hours?
    At this time, we are open Monday though Friday from 8:30 a.m. to 5:00 p.m. to serve you. Our offices are closed Saturday and Sunday.

  • Where can I get tested for COVID-19?
    We currently do not have any COVID-19 testing kits. Should you be experiencing a fever above 100.4F, coughing and shortness of breath and have had close contact with a confirmed case of COVID-19 and/or recent travel to an affected territory—please proceed to a COVID-19 testing site near you. If you have any questions or do not meet this criteria, please contact us to schedule a telehealth appointment.

  • What measures have we taken to ensure patient safety from COVID-19?

  • Should you be experiencing any cold symptoms, please call reception to notify us of your arrival prior to entering the building. For your safety, we have designated a sick entry through the middle entrance in the rear of the building. All other entries are to be accessed by patients not experiencing any cold symptoms. Staff will provide you with a mask and escort you to the quarantine isolation room. Patients examined in the quarantine isolation room are to exit through the same sick entry in order to minimize possible exposure to other patients. 

  • Where can I park when I visit?

  • We invite you to park at our own spacious parking facilities, adjacent to our new offices with no validation required.

  • What do I need to do if I have an urgent health problem and the offices are not open?
    Please do not wait. If you feel that you are experiencing an urgent emergency, please immediately call 911 or if possible, proceed directly to the hospital emergency room nearest you. At your convenience, please feel free then to contact our offices when we are open to advise Dr. Yoon of your status and for further assistance.

  • What if I need to reach Dr. Yoon for a prescription refill and the offices are not open?
    By contacting us after normal business hours, you have the option to leave a voicemail and your request will be processed for you. To avoid having last minute prescription refill requests and the possibility of running out of any medications prescribed to you, we highly encourage you to plan ahead and call us during normal business hours early on in order to allow us to expeditiously process your request

  • What if I don’t have insurance?
    We offer cash discounts for patients without medical insurance. Please contact us for cash prices.

  • What if I need to reach Dr. Yoon for an urgent medical matter and the offices are not open?
    by contacting us after hours, you have the option to leave a voicemail to page Dr. Yoon or the physician on call. We request that you only do so if you feel that the medical issue is urgent and cannot wait. If you feel that it is needed, we encourage you to proceed to the hospital emergency room nearest you as soon as practicable. Appointment scheduling and prescription requests are considered non-urgent and we are able to most efficiently serve you if you contact us during normal operating hours.

  • Do you take walk-ins?
    We discourage walk-in appointments. Appointments requested in office without prior arrangements will be made according to our discretion, as consideration is given to other patients who have already been priority scheduled for the day and the severity of your illness. In all instances, a $25.00 walk-in fee applies. This fee is not covered by any insurance carrier and is due at the time of service.

  • Does anyone in the office speak other languages?
    Dr. Yoon and our staff are happy to also serve you in Korean and Spanish.

  • How can I access a copy of my lab test results? you may view your lab test data all online by accessing our secure and encrypted Patient Portal, provided that we activated your account and you have provided us with your e-mail address. Our offices can also e-mail or fax your results to you upon your request. (please remove this line)

  • Who do I contact if I have questions regarding my bill?
    Please contact our Billing Department at 747.241.8782 for assistance.


Laboratory Services

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  • Where will I go to get my lab work completed?
    Where you will go depends on the facilities that your insurance carrier has designated for you to be in network. Most typically, our patients are directed to laboratory facilities at the Glendale Adventist Medical Center campus, Quest Diagnostics, LabCorp, etc. Upon checking out from your visit, reception will direct you with specific instructions on the laboratory facility location where you will have the lab work performed.

  • What does it mean to fast for my lab work?
    Please refrain from consuming food for about 12 hours prior to your laboratory visit intake. Drinking water is permissible.

  • Where do I need to go if I need a procedure done (Xray, mammogram, MRI, etc.)?
    This depends on the facilities that your insurance carrier has designated for you to be considered in network. Reception will advise you with specific instructions upon checking out.

  • Do I need an authorization for my lab work or procedure?
    None is needed for lab work. An authorization may or may not be required for a procedure, depending upon the type of procedure and the insurance plan that you have.

  • How can I access a copy of my lab test results?
    You may view your lab test data all online by accessing our secure and encrypted Patient Portal, provided that we activated your account and you have provided us with your e-mail address.