All Functional Health

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.