Learn about the doctors that power the next generation of urgent care clinics.

Walk into any Exer clinic any day of the week to have a physical exam. All 55 Exer Urgent Care locations offer a full range of examinations to fit your needs.

Our Team

Our team of medical and healthcare experts help us serve more communities across Southern California.

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Dr. Brian Harris
Site Medical Director, Rolling Hills Estates &
Growing up in a military family, Dr. Harris enjoyed a global upbringing. He obtained his medical degree from UC San Diego School of Medicine and successfully completed an Emergency Medicine Residency. Notably, during his college years, Dr. Harris professionally competed at the Olympic Distance Triathlon. He’s been a lifeguard, paramedic and ER doctor. At Exer, he finds great satisfaction in providing exceptional healthcare to patients who genuinely appreciate it. Outside of his professional commitments, Dr. Harris relaxes by hiking, going on runs with his four-legged companion, and surfing.
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Dr. Cameron Araghi
Site Medical Director, Santa Monica – Wilshire Blvd &
Dr. Araghi, a Los Angeles native, earned his undergraduate degree from UC Santa Cruz and went on to graduate from Chicago Medical School. He successfully completed his Emergency Medicine Residency at Harbor UCLA. Driven by a desire to make a meaningful impact and help his community, he found his calling in healthcare. Working at Exer brings him immense satisfaction as he can attend to patients with higher acuity levels and proactively prevent emergency department visits. During his leisure time, Dr. Araghi plays soccer and relishes spending time with his wife.
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Dr. Maryann Trephan
Site Medical Director, Westlake Village &
Dr. Trephan, born and raised in Covina, California, obtained her medical degree from Jefferson Medical College before embarking on an accomplished journey in the field of medicine. She completed an Emergency Medicine Residency and a Pediatric Emergency Medicine Fellowship. Throughout her 27 years of experience, she has honed her expertise in emergency medicine as well as pediatric emergency medicine. The inspiration to pursue a healthcare career stemmed from her mother, who served as a physician herself. Driven by a deep sense of connection to the community, she joined Exer Westlake Village. Her children were raised in Westlake Village and attended school there. When not engaged in her medical duties, Dr. Trephan enjoys gardening and fun-filled family vacations.
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Dr. David Loya
Site Medical Director, Oxnard &
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Mai Lai
Dr. Mai Lai
Site Medical Director, Torrance – PCH &
Dr. Lai, a Los Angeles native, has been practicing as a board-certified emergency medicine physician in Southern California since 2005. She obtained her bachelor’s degree from UCLA and her medical degree from Michigan State University, where she also completed her Emergency Medicine Residency. Throughout her education and training, she had the opportunity to travel across the United States. During this time, she witnessed the resilience and kindness that emerged from the tragic events of 9/11, which further solidified her commitment to pursuing a career in emergency medicine. During her leisure time, she enjoys exploring different parts of the world, hiking in national parks, swimming with manatees, and scuba diving with hammerhead sharks.
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Kent Shoji
Dr. Kent Shoji
Site Medical Director, Playa Vista &
Dr. Shoji, hails from the San Fernando Valley, possesses extensive expertise in emergency medicine and has made significant contributions to urgent care. He earned his medical degree from the Medical College of Wisconsin, and completed his residency in Emergency Medicine. He is an ER-board certified physician and has served as an ABEM examiner since 1984, actively contributing to the certification of emergency medicine practitioners. His instrumental role in establishing one of the earliest Emergency Medicine Residency Programs at Harbor-UCLA Medical Center highlights his commitment to shaping the future of the field. Throughout his remarkable 37-year career, he has demonstrated unwavering dedication to teaching, mentoring, and ensuring the proficiency of emergency physicians. Beyond his professional accomplishments, Dr. Shoji leads a vibrant personal life with diverse interests such as home repair, fishing, travel, art history, and a passion for auto racing.
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All Exer doctors are
Board certified
Highly skilled professionals
Committed to improving the urgent care experience
We’re actively recruiting medical and healthcare experts to join us!
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Exer Urgent Care offers advanced care for everyday emergencies
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