Meet Our Team
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Ariel Vieira
Patient Care Coordinator and Medical Assistant
Hello! I welcome patients to the practice and prepare them for their visits with Dr. Koolaee. I graduated from USC with both my bachelor's and master's degrees and am currently applying to medical school. As a lupus patient myself, I know that the journey to finding care or getting answers can be difficult and frustrating. Alongside Dr. Koolaee, I hope to help create a space where you feel welcomed, heard and seen.
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Hilario Rivera
Practice Manager
As Practice Manager, Hilario supports the day-to-day administrative operations of Dr. Koolaee’s practice and works closely with the team to keep things organized, responsive, and moving forward.
What excites Hilario most about joining the practice is the opportunity to contribute to a growing team that values personalized care and truly getting to know its patients. He believes some of the best patient experiences are created not only through great care, but through the small details, thoughtful follow-through, and personal touches that make people feel genuinely looked after.
Outside of work, Hilario enjoys spending time with family and his two dogs, gardening, playing volleyball and taking on DIY projects around the house.
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Christopher Angelo Lorbes
Patient Care and Prior Authorization Coordinator
Chris L. holds a degree in Nursing and brings a strong background in healthcare operations and Revenue Cycle Management (RCM). Throughout his healthcare career, he has supported clients and physician teams, ensuring smooth day-to-day operations while providing attentive and compassionate service to patients.
Chris supports the administrative and clinical operations of Dr. Koolaee’s practice. He enjoys being part of a growing team that values personalized care and meaningful relationships with patients. With his nursing background and passion for healthcare, Chris believes excellent patient experiences result from thoughtful communication, attention to detail, and genuine follow-through. He strives to make every patient feel heard, supported, and cared for.
Outside of work, Chris enjoys spending time with family and friends, playing mobile games, attending dance classes, and staying active.