Radiology and Imaging
There’s no place like CHOC when it comes to radiology and imaging services for kids. CHOC Radiology is the only specialized imaging facility in Orange County just for children and we offer a wide range of radiology services.
At CHOC, we make sure your child is comfortable and safe by using the most advanced equipment available with the lowest amount of radiation. Many children in adult facilities are potentially exposed to radiation doses up to 50 percent higher than at CHOC. Our equipment is safe and calibrated for kids, not adults.
The CHOC Difference
- We offer a full range of specialized pediatric imaging services, including ultrasound, X-ray, fluoroscopy, MRI and CT scans.
- CHOC has been designated a Diagnostic Imaging Center of Excellence® (DICOE) by the American College of Radiology (ACR) for best-quality imaging practices and diagnostic care.
- Radiation doses on CHOC equipment can be up to 50 percent lower than community hospitals or independent imaging centers. Get more information on how CHOC uses the lowest amount of radiation possible in our imaging exams.
- CHOC uses only board-certified pediatric radiologists and specially trained pediatric radiology technologists, nurses and child life specialists.
- All radiology staff undergo age-specific training annually to learn how to work and communicate with children of varying ages.
- CHOC is only one of a small number of medical centers in the country to have child life specialists working in a dedicated pediatric radiology and imaging department.
Radiology Anesthesia
Anesthesia is sometimes required for your child to be able to stay still for their exam. The CHOC radiology department nurses work very closely with our board-certified pediatric anesthesiologists to provide the safest, most efficient care as well as comfort for your child.
Prior to your child’s appointment
A radiology nurse will contact you prior to your appointment to review your child’s medical history and give you specific instructions for the day of the exam. For safety, your child will have fasting restrictions. It is important to follow these guidelines otherwise the exam may need to be rescheduled. Your child will also need to see their primary doctor for a History and Physical pre-anesthesia clearance within 30 days of the scheduled procedure.
During your child’s appointment
A radiology staff member will escort the child and caregiver to a prep room to prepare for the procedure. During the procedure, the specially trained care team (technologist, RN, and MD) will continuously monitor your child’s heart rate, blood pressure, breathing and oxygen levels. Your child may need an intravenous (IV) line placed for the procedure.
After the exam, your child will be monitored in the recovery room until they are safe to go home. It is recommended to not plan events, return to school or sports the day of the exam as children can be sleepy, irritable or may not feel well after anesthesia.
What to Expect
From the imaging suites to our family lobby, the CHOC radiology is designed to be a calm and inviting unit for children of all ages--infants to teens and young adults.
CHOC's team works one-on-one with each patient to make the imaging experience as comfortable as possible. These guidelines will help make you understand what to expect before, during and after your child's appointment.
All imaging services and examinations must be ordered by your child's doctor. Please have the doctor's written prescription with you when making the appointment. Bring the prescription with you for any scheduled or walk-in appointment.
Also, you must bring a pre-authorization from your insurance for most radiology exams. Get your pre-authorization from your insurance company should before scheduling an appointment. Please contact your insurance company or child's doctor directly to make sure pre-authorization is obtained.
A parent or legal guardian must accompany your child for ALL radiology appointments. Other family members, babysitters or friends cannot legally bring your child to appointments.
Please make legal arrangements with our office BEFORE the appointment if a parent or legal guardian cannot bring your child. We can provide you with a legal document that needs to be signed and notarized to allow someone else to bring your child. At check-in, we need a photo id for the parent, legal guardian or authorized legal designee.
Please first check in with the reception area of the hospital's main lobby with legal photo identification from the parent or legal guardian. Then, they will direct you to the radiology department lobby.
Child Life
CHOC is proud to be one of only a few medical centers in the country to have child life specialists working in a dedicated pediatric radiology and imaging department. Our radiology associates and child life specialists help children of all ages—babies through young adults—feel comfortable and safe.
Child Life Specialists utilize opportunities to normalize the healthcare setting through using age-appropriate videos, toys, and activities to help children feel more at ease with the imaging process. They engage children in medical equipment, pictures, and interactive tools to help children understand what to expect.
Our team uses videos, toys and activities to help children feel more at ease with the imaging process. We use medical equipment, pictures and interactive tools help children understand what to expect. During the procedure, our associates help patients through the imaging process by:
- Blowing bubbles, talking or singing with the child.
- Providing music to listen to on an MP3 player during an X-ray, ultrasound, or CT scan. (this may not be an option for all children depending on the area of the body being imaged)
- Providing special goggles to use during MRI scans. Video goggles allows patients to watch movies or TV shows during their MRI scan. Few facilities in the United States use goggles. Yet, goggles have reduced the number of patients needing sedation for MRI procedures.
In addition, to promote a positive experience in our Radiology department, opportunities that are typically available are the following:
- parent/caregiver presence
- music to listen to on an iPad during the child’s imaging (this may not be an option for all children depending on the area of the body being imaged).
- movie goggles, glasses or head set to use during MRI This allows patients to watch movies or TV shows during their MRI. Few facilities in the United States use goggles. Yet, goggles have reduced the number of patients needing sedation for MRI procedures.
- sensory items such a chewie’s, pop-it’s, and stress balls.
Child life specialists are nationally certified through the Association of Child Life Professionals (ACLP) and obtain a bachelors or master’s degrees typically in child development, psychology, human development, or a child life program geared toward psychosocial and developmental needs of the child and family. For additional information please do not hesitate to call our office at 714.509.8473
Appointments and Location
All imaging services (except X-rays) require appointments. X-ray appointments are walk-in only. But, if your child needs special accommodations, an appointment will be made for your convenience.
How to make a radiology appointment (other than X-ray): Call (888) 770-2462 to make an appointment. Our associates will help make the appointment and provide pre-examination instructions.
X-ray walk-in services: Walk-in hours are Monday-Friday, 8 am to 6 pm. At the time of walk-in, we require a doctor’s prescription for the x-ray and insurance authorization (if required by your insurance).
A legal parent or guardian must accompany your child to ALL radiology appointments. Parents and guardians must bring photo identification. Other family members, friends or caretakers are not allowed to bring your child to a radiology appointment.
1201 W. La Veta Ave. | Orange, CA 92868
(888) 770-2462
Meet our Team

Holmes, W. Nathan MD
Specialty:
Radiology
Appointments: 888-770-2462
Dr. Holmes is certified by the American Board of Radiology and treats kids and teens at CHOC in Orange County.

Eghbal, Azam A. MD
Specialty:
Radiology
Appointments: 888-770-2462
Dr. Eghbal is a board certified pediatric radiologist who treats kids and teens at CHOC Hospital in Orange.

Chiang, Michael J. MD
Specialty:
Radiology
Office: 714-509-9060
Dr. Michael J. Chiang is board certified in pediatric radiology who treats kids and teens in Orange County.

Dao, Tuan V. MD
Specialty:
Radiology
Appointments: 888-770-2462
Office: 714-509-9160
Dr. Dao is board certified in radiology by the American Board of Radiology with a certificate of added qualification in pediatric radiology.

Lai, Hollie A. MD
Specialty:
Radiology
Appointments: 888-770-2462
Dr. Lai is board certified by the American Board of Radiology and American Board of Nuclear Medicine with certificates of added qualification in pediatric radiology and neuroradiology.

Launier, Kristen MD
Specialty:
Radiology
Appointments: 888-770-2462
Dr. Launier is board certified by the American Board of Radiology with certificate of added qualification in pediatric radiology and additional training in pediatric neuroradiology.

Nahl, Daniel S. DO
Specialty:
Radiology
Appointments: 888-770-2462
Dr. Nahl is board certified by the American Board of Radiology with a certificate of added qualification in pediatric radiology.

Beydoun, Tammam DO
Specialty:
Vascular & Interventional Radiology
Office: 888-770-2462
Dr. Tamman Beydoun is a board-certified Interventional Radiologist and treats kids and teens at CHOC Hospital in Orange.