About Us

Location Map
Get Directions

Mission Statement

Our goal and mission at Sand Canyon Urgent Care is to provide quality medical care promptly and professionally. We created Sand Canyon Urgent Care from a desire to offer you a refreshing solution to an often inefficient, overpriced and stressful healthcare system. We offer a solution to the over utilized, expensive and stressful ER environment.

Our solution is to see you at your convenience. We'll provide top level care without top level pricing. We are very mindful that your time is valuable, so we've created a warm and relaxed environment, with our average door-to-door times under an hour (compared to 3-4 hours at an emergency department). Our physicians include you in the medical decision process and treat you as they would treat their own.

Sand Canyon Urgent Care promises you premier care in an unrivaled urgent care setting. Enjoy our comfortable and spacious waiting room with gourmet coffee, baked cookies and flat screen cable television. Many medications are available onsite for your convenience, eliminating the need to spend additional time at the pharmacy. We have onsite digital X-ray and rapid lab testing abilities. Experience urgent healthcare where Sand Canyon Urgent Care never forgets that we're here to serve you.

We're determined to improve Orange County's health, one patient at a time.

Physician Bios

Dr. Matt Mullarky

Dr. Mullarky Dear Irvine Families,

I grew up in Prairie Village, KS, a suburb of Kansas City. I attended high school there and was active in sports and music. I went on to attend the University of Kansas for undergraduate studies and medical school. After completing medical school, I moved to Boston for my internship where I rotated through all of the departments of the hospital. Upon completion of my internship, I moved to New Zealand to take a year off from medical studies and see how medicine is practiced in other countries. I worked as a House Surgeon in hospitals in Greymouth and Christchurch. With a more relaxed schedule, I was able to learn how to scuba dive and play cricket. Following my time with the Kiwis, I traveled on my own to Australia, Indonesia, Singapore, Thailand and China before returning to the U.S.

I started an emergency medicine residency at USC's LA County hospital. It was quite the transition from the slower paced medicine in New Zealand and the bucolic environs. I completed the residency in 1989 and was one of the chief residents for my last 2 years.

I have been working in Irvine for the last 18 years as an emergency physician at Irvine Regional Hospital. We opened Sand Canyon Urgent Care to provide high quality medical care for work-related injuries and the urgent medical needs of the community. We offer a more cost effective alternative to utilizing a hospital based emergency department.

I still enjoy playing basketball and occasionally take a shot at playing golf. I mostly enjoy spending time with my wife and 3 boys, which usually consists of attending their sporting events, preparing a "Top Chef" meal at home or playing music together.

We look forward to seeing you at Sand Canyon Urgent Care!

Matt Mullarky, M.D.

Dr. Steven Lin

Dr. LinDear Irvine Families,

I lived in New York City since the age of three. I graduated from Stuyvesant H.S. on the lower eastside and enjoyed my time as a teenager under the bright lights of the big city. If you want to see the "real" NYC, ride the subway to the farthest reaches of the five boroughs. It's a sharp counterpoint to the usual tourist attractions. I decided to change scenery and left for the small rural town of Ithaca, spending 4 years at Cornell University. You have not seen a snowstorm unless you have been through a blizzard in upstate New York. The most exciting thing to do in Ithaca was to go to the new mega-supermarket, Wegmans. It was Costco before there was Costco. I almost died of boredom, which was good for my studies, and decided to return to the city attending Mount Sinai School of Medicine on the upper eastside of Manhattan. Deciding to venture beyond the east coast for my post graduate residency, I matched at USC's LA County General Hospital for Emergency Medicine, finishing as one of the Chief Residents. My time there was intimidating, exhilarating and educational. They used to call the ER the "gun and knife club", because of all the gang victims. N.Y.C. and So-Cal are polar opposites. Realizing that I am not a New Yorker at heart, I stayed in Southern California.

Currently, I am married with three school-age children who love to swim. My parents and sister also live in Irvine, which was voted by Money magazine as one of the top ten best places to live in America. I try to keep in shape by playing basketball, although the guys at the gym seem to be getting faster, stronger and jumping higher every year. I also enjoy a round of golf on a sunny California day. Recently, I have turned some of my efforts to medical missions, traveling to the ends of northeast Thailand. It was the Travel channel, Discovery channel and Food Network all mixed into one experience. I hope to return to Southeast Asia on a regular basis for volunteer work.

My interests as a doctor focus on health and well-being, which is my goal for your family. If you find me at the gym or on the golf course, stop and ask a question or just say 'hi'.

Steven Lin, M.D.

Dr. Tom Ryu

Dr. RyuDear Irvine Families,

I was born and raised in Northern California. I went to Yale for college and completed my medical school training at the College of Osteopathic Medicine of the Pacific.

My internship year was in Chicago, where I met my wife. We moved to Arizona for two years and I worked in the Indian Health Service as repayment for medical school loans. We had to "take call" every five nights, which included delivering babies and covering the ER. My second patient on ER call was a 7-year old boy who fell out of the back of a moving pickup truck. He sustained numerous injuries, one of which was life threatening, and managed to survive despite my tentativeness and inexperience. His mom wove me a Navajo rug, which I still have. This experience guided me to the field of emergency medicine.

I completed my residency in emergency medicine at LA County USC General Hospital. Since residency, I worked at Irvine Regional Hospital from its inception in 1990 until its closure in 2009.

My hope is that Sand Canyon Urgent Care and the ER physicians staffing the clinic will continue to provide the community of Irvine with quality and compassionate medical care.

Tom Ryu, D.O.


Sand Canyon Urgent Care
15775 Laguna Canyon Rd, Suite 100
Irvine, CA 92618

Phone - 949.417.0272
Fax - 949.417.0276


Monday - Friday: 8:00am to 7:00pm
Saturday: 9:00am to 5:00pm
Sunday: Closed

FB Follow us on Facebook!

Contact Form

Your browser has javascript disabled.
Please contact us via phone.

Your Name:

Your Email Address:

Question or Comment:

Our team will respond to your inquiry during business hours within one business day

Sand Canyon Urgent Care - 15775 Laguna Canyon Rd, Suite 100 Irvine CA 92618 - Phone: 949.417.0272