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Welcome to PrimeCare of Inland Valley

As the Medical Directors, we are proud to present our association of highly regarded independent physicians to provide you and your family with personalized care in private office settings. I understand that maintaining your health and that of your family is very important, and at PrimeCare of Inland Valley, we have 82 primary care physicians and an extensive network of specialists committed to providing you with timely care. Our physician offices are conveniently located throughout the Rancho Cucamonga/Ontario area, and our urgent care center offers extended hours to suit your busy lifestyle. Also, as part of the PrimeCare family, you are likely to find an office near your home or work in the Rancho Cucamonga/Ontario area. Please use the search tool on this website to find your personal physician.
At PrimeCare of Inland Valley, we are dedicated to promoting your overall well-being, and have developed multiple support programs and services for healthy living. To learn more about PrimeCare of Inland Valley, we invite you to explore each area of this website or you may call our customer service staff at:
(800) 956-8000
8 a.m. to 4:30 p.m. - Mon. & Wed.
8 a.m. to 6 p.m. - Tue. & Thur.
8 a.m. to 4:30 p.m., closed 11:30 to 12:30 - Fri.
Thank you for visiting with us, and we look forward to providing care to you and your family at PrimeCare of Inland Valley.
Lothar McMillian, M.D.
Executive Medical Director
Nick Marciano, M.D.
Regional Medical Director

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Affiliated Urgent Cares