About Us

The Functional Medicine Difference


Next Advanced Medicine is an interdisciplinary medical practice in Orange County, Calif., that focuses on non-surgical, non-drug-based treatments for chronic disease. Our team of medical doctors, chiropractors, therapists, physician assistants and licensed nutritionists considers the complex confluence of genetic, environmental, and lifestyle factors that affects disease progression and treatment.

We are different from a traditional medical practice in that we have an upstream view of chronic disease, instead of a downstream view.


Next Advanced Medicine - The Functional Medicine Difference
Next Advanced Medicine

The traditional downstream view of illness seeks to alleviate symptoms through drugs and surgery.


Upstream view of illness

Our upstream view of illness seeks to look more deeply at the underlying causes of illness – the “whys” of a patient’s condition.

Comprehensive Care You Can Trust



We prescribe drugs and surgery where it is medically necessary, but we also recognize that the vast majority of chronic and degenerative diseases cannot be effectively treated with traditional medicine. Hence, our focus is on using integrative, functional medicine to target the underlying causes of symptoms and provide lasting pain relief.

Next Advanced Medicine

Meet The Doctors


Dr. Neil K. Hersh, M.D.

Dr. Neil K. Hersh, M.D.

Dr. Hersh attended the University of California at San Diego, Yale University, and completed medical school at the University of Chicago. His postgraduate training included internal medicine and anesthesiology. He has been practicing in Southern California since 1986.

With a diverse career that includes practicing as an anesthesiologist, teaching future doctors, and performing rehabilitative medicine in multispecialty clinics, Dr. Hersh admits that he has never been more surprised or gratified by the results he has seen while working with Dr. Candice Hall at Next Advanced Medicine. “The process of taking patients who continue to suffer despite following standard medical therapies, and seeing them lower and stabilize their blood sugar while dramatically reducing or eliminating their medications, has been remarkable,” he said.

Dr. Candice Hall

Dr. Candice Hall, D.C.

Dr. Hall is an author, speaker, and authority on integrative and functional medicine, particularly as a remedy for diabetes and other chronic, degenerative conditions. In 2005, the National Republican Congressional Committee presented Hall with the Physician of the Year award for a paper she developed on health care reform. She holds a bachelor’s degree in human biology, a doctorate in chiropractic medicine, and she has 14 years of postgraduate education in functional health care. Hall is chief of staff and a driving force behind Next Advanced Medicine.

Dr. Wayne Greathouse

Dr. Wayne Greathouse, D.C.

After obtaining degrees in both biochemistry and physiology as well as a doctorate in chiropractic medicine, Dr. Wayne Greathouse, D.C. soon discovered his passion for functional medicine and went on to join the prestigious Functional Medicine Institute in San Diego. Dr. Greathouse knows that empathy and compassion are two significant elements that are crucial to care and provides care that reflects his compassion and commitment.