Forte Health: A Comprehensive, Personal Direct Primary Care Practice Based in Upland, CA

Jonathan Siu, DO a board-certified family medicine and sports medicine physician passionate about helping his patients live their best lives through evidence-based care. With over a decade of experience in private and public health primary care clinics, he has seen firsthand the frustrations and limitations of traditional insurance-based healthcare—for both patients and physicians. That’s why he created Forte Health, which just opened its doors in July. Forte Health is a practice designed to prioritize meaningful doctor-patient relationships, proactive care, and a more seamless healthcare experience.

I left “the system” so that I could take care of my patients in a way that I would be proud of – with adequate time, attention, and accessibility. I also take great pleasure in saving my patients time and money!

At the core of Forte Health is a commitment to empowering patients through education. Dr. Siu’s greatest professional joy is helping his patients take control of their health through preventive strategies and informed decision-making. And if he can do all that while saving my patients time and money? That’s the ultimate reward!

Outside of medicine, Dr. Siu is just as passionate about staying active and exploring new experiences. When he’s not working, he’s either traveling on points, planning his next trip, or spending time with his wife and son. He also enjoys playing badminton and exercising regularly. He truly believes in leading by example, both in life and in medicine, because anything less would feel disingenuous.


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