Dr. Jonathan Siu, DO

DPC Family Medicine physician, Upland, CA

Forte Health Medical Clinic

Dr. Siu is a board-certified family and sports medicine physician who provides care through a membership-based primary care practice.

Upland, CA 91711
At a glance
Practice model
Direct primary care membership
Board certification
Family Medicine and Sports Medicine
Insurance
Does not bill insurance or charge a copay for each visit
Visits
Video visits and home visits

About Dr. Siu

He created Forte Health, a direct primary care practice that opened its doors in July. He is board certified in family medicine and sports medicine and provides care in both. His practice is a membership-based primary care practice.

Same-day or next-day appointments are typically available, and home visits and video visits are options. His practice focuses on meaningful doctor-patient relationships, proactive care and a more seamless healthcare experience. He helps patients take control of their health through preventive strategies and informed decision-making.

He earned a degree in bioengineering at UCLA and a doctorate in osteopathic medicine at Touro University. Earlier he was an attending physician at Kaiser Permanente Indian Hill.

Membership and fees

Monthly membership at the practice is $90 for ages 3 to 18 with an accompanying adult membership, $120 for minors without an accompanying adult membership, $175 for ages 19 to 64 and $225 for ages 65 and older.

New patients pay a one-time nonrefundable enrollment fee of $100 per person, and returning patients pay a re-enrollment fee of $250 per person.

The practice does not bill insurance or charge a copay for each visit.

Fees are not published. Ask the practice.

Education and credentials

Degree
DO
College
UCLA
Medical school
Touro University
Board certification
Family Medicine and Sports Medicine
NPI
1346652179

Hospital and practice affiliations

Former attending physician at Kaiser Permanente Indian Hill

Location

Upland, CA 91711
Directions

Recognition and research

Media and books

A Claremont COURIER article on August 7th, 2026 featured his direct primary care practice, Forte Health.

Patient reviews

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Questions patients ask

Does Dr. Siu take insurance, or offer a membership?

Yes. His practice works on a membership model. The practice does not bill insurance or charge a copay for each visit.

How much does a membership at Dr. Siu's practice cost?

Monthly membership at the practice is $90 for ages 3 to 18 with an accompanying adult membership, $120 for minors without an accompanying adult membership, $175 for ages 19 to 64 and $225 for ages 65 and older. New patients pay a one-time nonrefundable enrollment fee of $100 per person, and returning patients pay a re-enrollment fee of $250 per person.

Is Dr. Siu board certified?

Yes. He holds board certification in family medicine and in sports medicine.

Where did Dr. Siu study?

He earned a degree in bioengineering at UCLA and a doctorate in osteopathic medicine at Touro University.

Where is Dr. Siu's office?

Dr. Siu created Forte Health, a direct primary care practice.

Does Dr. Siu offer telehealth?

Yes. The practice offers video visits.

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