John Hennessy, MD

Endocrinologist / Diabetes & Metabolism Doctor

Dr. John Hennessy is an Endocrinologist / Diabetes & Metabolism Doctor in Olean, NY with special training and skill in maintaining and treating the endocrine system (the network of glands and hormones that regulates human metabolism, growth, musculature, and sexual and reproductive function). As an Endocrinologist / Diabetes & Metabolism Doctor, John Hennessy, MD performs diagnostic and treatment procedures to identify and treat hormonal metabolic dysfunctions. Endocrinology / Diabetes & Metabolism Medicine is the study, diagnosis, and treatment of endocrine and metabolic dysfunctions to achieve patients' healthy hormone balance. Significant diseases and conditions treated by Endocrinologist / Diabetes & Metabolism Doctors include hormone imbalance, hypo and hyperthyroidism, thyroiditis, goiters, diabetes, pituitary gland tumors, osteoporosis, lipid disorders, hypogonadism, and Cushing's syndrome. Medical tests, procedures and therapies provided by Endocrinologist / Diabetes & Metabolism Doctors include blood, saliva, and urine hormone level testing, insulin management, Bioidentical Hormone Replacement Therapy, CT scans, thyroid biopsies, and endocrine tumor radiation or surgery.

An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.