Areas of Expertise

What is Endocrinology?

It is the study of medicine that relates to the endocrine system, its diseases, and its specific secretions known as hormones. Hormones are chemical messengers produced by glands and sent into the blood stream to the various tissues in the body for a wide range of functions such as metabolism and weight management, growth, reproduction, and sexual development.

Dr Reyes has expertise in managing the following Endocrine Disorders:

Diabetes Mellitus

  • Type 1 (Autoimmune), Type 2, MODY, LADA
  • Dr Reyes will tailor your therapy with tablets, insulin or insulin pump depending on your needs and lifestyle
  • He performs comprehensive screening to prevent known diabetes complications
  • Multidisciplinary management including diabetes educators, dietitians, psychologist is available to optimise the patient journey

Metabolic syndrome and Obesity

  • Dr Reyes will work with your primary care physician and dietitian to develop a customized weight management plan, that includes lipid and blood pressure control

Pregnancy-related endocrine disorders

  • Pre-Gestational and Gestational diabetes and thyroid disorders
  • Dr Reyes will liaise with your obstetrician throughout your pregnancy so that you and baby stay healthy, with the aim of a smooth and uneventful delivery

Bone metabolism disorders

  • Osteopenia and Osteoporosis, including secondary screening
  • Fragility fractures
  • Calcium, Phosphate and Vitamin D abnormalities

Thyroid and Parathyroid disorders

  • Over and underactive thyroid function
  • Goitre, thyroid and parathyroid nodules
  • Thyroid cancer and surveillance

Polycystic ovarian syndrome, Hirsutism, Insulin Resistance

General endocrinology disorders

  • Pituitary disorders
  • Adrenal disorders
  • Hypogonadism, including menopause and testosterone deficiency

Endocrine complications

  • Glucocorticoid-induced endocrinopathies
  • Checkpoint inhibitor-related endocrinopathies
  • Pre and post transplant endocrinopathies


Dr Reyes is available across three locations within the Sydney area. Contact a location to make or enquire about an appointment.

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