UCI Health — Tustin
Address
Tustin, CA 92780
Contact Us
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Primary Care Services
Office hours are 8 a.m. to 5 p.m., Monday through Friday.
To make an appointment, call 714-838-8878. To send a fax, dial 714-838-8988.
Same-day appointments are available.
Laboratory
Laboratory hours are Monday through Friday, 7:30 a.m. to 4 p.m. Closed from 12:30 to 1:30 p.m. for lunch. Closed on weekends.
Radiology
Radiology hours are 7:30 a.m. to 5 p.m., Monday through Friday and weekends 9 a.m. to 5 p.m.
To make a radiology appointment, call 714-456-7237.
Specialty Services
Our specialist office hours are 8 a.m. to 5 p.m., Monday through Friday.
To make an appointment with one of our world-class specialists in Tustin, call 714-838-8408. To send a fax, dial 714-838-0029.
Walk-in Care Services
We offer walk-in care for health issues that cannot wait until the next day.
Walk-in care is best for minor illnesses or injuries that don’t require the level of services offered at an urgent care center. If your condition needs more immediate or advanced attention, please visit an urgent care location or call 911 in an emergency.
UCI Health also offers Urgent Care Services. Learn more about UCI Health — Urgent Care in Irvine.
No appointment is needed for walk-in care, which is offered:
- Monday: 10 a.m.-noon & 1-9 p.m.
- Tuesday: 5-9 p.m.
- Wednesday: 5-9 p.m.
- Thursday: 5-9 p.m.
- Friday: 10 a.m.-noon & 1-9 p.m.
- Saturday, Sunday and most holidays: 9 a.m.-noon & 1-5 p.m.
Please note, walk-in care services will be closed at this location on the following dates:
- Thursday, July 24
- Friday, October 10
- Thursday, January 22, 2026
UCI Health — Tustin is participating in a new program to enhance your care: Primary Care First
Primary Care First is an innovative healthcare payment program that aims to improve our patients’ care experience.
Giving doctors extra support to help you get better care
Our goal has always been to provide you with the highest quality of care. Through Primary Care First, we will receive additional resources from Medicare and other health insurance companies to help us enhance our work and provide you the best quality, patient-centered care.
More information for patients with original Medicare
As part of this program, Medicare will start sharing some of your personal health information with us, such as when you receive care at hospitals, emergency departments, and specialist offices. This will help provide us with a more complete picture of your health and allow us to better coordinate your care.
If you want to stop Medicare from sharing this information, you should call
1-800-MEDICARE (1-800-633-4227). TTY users should call 1-877-486-2048.
Your Medicare benefits are not changing, and this program is only intended to enhance the healthcare you receive at UCI Health — Tustin. You still have the right to use or visit any doctor or hospital that accepts Medicare, at any time. Your doctor may continue to recommend that you see particular doctors for your specific health needs, but it is always your choice which doctors you use or hospital you visit.
Questions?
If you have questions or concerns, you can call Estefany Franco at 714-456-3704 or bring it up at your next appointment.
For more information about this new Medicare program, please:
- Visit the Primary Care First webpage; or
- Call 1-800-MEDICARE.