Dr. Truong Son NguyenD.O.
Family Medicine
at Walnut Health Direct Primary Care Medical Clinic — Walnut, CA
About
O. is a board-certified Family Medicine physician and the founder of Walnut Health Direct Primary Care Medical Clinic in Walnut, California. He earned his degree in Osteopathic Medicine and built clinical experience across both traditional primary care and urgent care environments. That breadth shaped his ability to manage acute conditions, chronic disease, and preventive health within a single practice.
Dr. Nguyen brings particular depth to metabolic health, diabetes, high blood pressure, high cholesterol, and nutrition counseling. His training in Osteopathic Manipulative Treatment adds a hands-on dimension to chronic pain and musculoskeletal concerns. He holds that medicine should center on the patient rather than the system, and he structures his practice to reflect that belief. Visits run 30 to 60 minutes, and patients reach him directly by call, text, email, or video. Outside the clinic, he enjoys cooking, gardening, the outdoors, and time with family and friends.
Education & Training
Doctor of Osteopathic Medicine
Certifications
Conditions Treated
Who is Dr. Nguyen right for?
Dr. Nguyen works well with adults and children who want an ongoing relationship with one physician. Patients managing diabetes, high blood pressure, high cholesterol, or weight and metabolic concerns benefit from his chronic disease focus. He also handles acute needs like infections, rashes, and minor injuries, making him a practical choice for families who want one doctor for routine and urgent care. Adults with high-deductible plans or limited insurance access often find his flat-fee model a good fit. Seniors on Medicare may join his waitlist for future enrollment.
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Frequently Asked Questions
Dr. Nguyen treats a broad range of acute and chronic conditions. These include diabetes, high blood pressure, high cholesterol, and weight and metabolic health issues. He also manages respiratory infections, urinary tract infections, rashes, allergic reactions, sprains, strains, and minor injuries. For conditions outside his scope, he provides referrals to appropriate specialists.
Yes. Dr. Nguyen holds board certification in Family Medicine. He earned his degree as a Doctor of Osteopathic Medicine and brings experience from both traditional primary care and urgent care settings.
Yes. Dr. Nguyen incorporates Osteopathic Manipulative Treatment, known as OMT, into his care. This hands-on approach complements his primary care services, particularly for patients with musculoskeletal concerns.
Dr. Nguyen provides personalized nutrition counseling as part of his clinical care. He focuses on weight and metabolic health, nutrition strategies for chronic conditions like diabetes and heart health, and preventive approaches including gut health and anti-inflammatory eating patterns.
Dr. Nguyen offers mental health support within the scope of primary care, including medication management for appropriate conditions. For patients who need specialty-level mental health care, he facilitates referrals to qualified providers.
No. Walnut Health DPC does not prescribe chronic benzodiazepines, opioids, or ADHD medications. Dr. Nguyen is glad to help patients connect with the appropriate specialists for those needs.
Yes. Dr. Nguyen refers patients to specialists when their care requires it. If you plan to use insurance at the specialist's office, keep in mind that prior authorization may apply depending on your plan.
Members contact Dr. Nguyen directly by phone call, text, email, or video. This direct access is a core feature of the practice and allows for timely guidance without waiting for a scheduled appointment.
Yes. Dr. Nguyen cares for patients from age 1 through adulthood. Children ages 1 to 17 must enroll with a parent or legal guardian as an active member of the practice.
Dr. Nguyen does not perform hospital work. If you require hospitalization, an admitting physician or hospitalist will manage your inpatient care. Dr. Nguyen will follow up with you after your discharge to support your recovery and coordinate next steps.
Doctor profile last updated August 16, 2026