Kent Holtorf, M.D. is the medical director of the Holtorf Medical Group and the nation-wide Holtorf Medical Group Affiliate Centers, providing physicians a turn-key program for a successful cash-based anti-aging practice. Dr. Holtorf is also the medical director of the non-profit National Academy of Hypothyroidism; fellowship lecturer for ABAAM; The Endocrinology Expert for AOL Health and founding director of the non-profit Bioidentical Hormone Initiative.

Dr. Holtorf has published several peer-reviewed endocrine reviews, including; the safety and efficacy of bioidentical hormones, inaccuracies of standard thyroid testing, testosterone replacement for men and women, the diagnosis and treatment of growth hormone deficiency and on the diagnosis and treatment of HPA axis dysfunction in chronic fatigue syndrome and fibromyalgia. He is also a reviewer for the journal Endocrine, Postgraduate Medicine and Pharmacy Practice.

He has personally trained numerous physicians across the country in the use of bioidentical hormones, hypothyroidism, complex endocrine dysfunction and innovative treatments of chronic fatigue syndrome, fibromyalgia and chronic infectious diseases, including Lyme disease.