Dr. John Kasawa, MD brings high-quality lab testing directly to you—wherever you are in San Diego or the surrounding areas. You’ll get one-on-one care in the comfort of your home, with testing for micronutrients, toxins, heavy metals, stress hormones, and allergens. No waiting rooms, no rushing—just personalized attention, clear results, and expert guidance to help you understand your health and take the next steps with confidence.