All Functional Health is a boutique medical practice, focused on concierge functional medicine, regenerative medicine, obesity, healthy aging with a special emphasis on digestive health, which directly impacts our brain health. We understand that you, as a unique individual, require a personalized treatment plan. Here at All Functional Health, we design treatments to help you live your best life for the rest of your life. Dr. Jeffrey Mark, MD is a leader and quintuple Board Certified in Functional Medicine, Anti-aging and Regenerative Medicine, Obesity Medicine, Gastroenterology, and Internal Medicine providing concierge medicine services to patients in the Bay Area, Silicon Valley, East Bay, and San Joaquin Valley. With offices located in California and Illinois, he offers Telehealth Services to clients in all 50 states, whether in person or remotely. His practice utilizes a balance of advanced medical technologies, evidence-based assessment, and treatments integrating a holistic approach to treat the root cause of your medical problems.