1250 S. Grove Ave

Barrington Illinois 60010

Phone: 800-775-4902 Ext. 674


Gail M. Gagnon D.O. – Barrington Illinois Bioidentical Hormone Doctor

Barrington Illinois Bioidentical Hormone Doctor Gail M. Gagnon D.O., is a board-certified physician who specializes in anti-aging and functional medicine. She is a Bioidentical Hormone Replacement Therapy specialist who has been treating patients for over 20 years. Dr. Gagnon is conservative in her approach to hormone replacement therapy and replaces only deficit hormones identified through comprehensive testing. She believes in creating customized treatment plans to help her patients achieve optimum health and a balanced lifestyle. Dr. Gagnon has a comprehensive practice promoting health, preventing disease and managing illness through integrative and complementary approaches, and is an innovative practitioner who practices integrative medicine and specializes in the use of vitamins, minerals, herbs and bioidentical hormones. As a Bioidentical Hormone Replacement Therapy Doctor, she has helped thousands of patients decrease the uncomfortable effects of aging and regain their youthfulness and vitality.

Conditions Treated

  • Menopausal symptoms
  • Peri-menopausal symptoms
  • Andropause symptoms
  • PMS
  • Weight gain
  • Depression
  • Anxiety/Irritability
  • Insomnia
  • Memory loss
  • “Foggy” Thinking
  • Irritable bowel
  • Hypothyroidism
  • Chronic fatigue
  • Fibromyalgia
  • Insulin resistance
  • Adrenal fatigue
  • Autoimmune disorders
  • Hair loss
  • Osteoporosis
  • Sexual dysfunction

Background and Experience

Dr. Gail M. Gagnon received her undergraduate degree in Nutritional Science from Michigan State University and her medical degree from Michigan State University, College of Osteopathic Medicine. She is board-certified in Family Practice and Osteopathic Manipulative Therapy, a diplomat in The Academy of Anti-Aging Medicine, a graduate of the International Fellowship in Anti-Aging and Functional Medicine and a Certified Practitioner with the Institute for Functional Medicine. Dr. Gagnon has her medical license through the Illinois Licensed Physician and Surgeon board.