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Dr Carl Eagleton - Endocrinologist & Specialist Physician

Private Service, Endocrinology, Internal Medicine, Obstetrics and Gynaecology


Carl Eagleton is an experienced Auckland trained endocrinologist & specialist physician working at Mercy Specialist Centre, Auckland and Greenlane hospitals.  Carl is the Lead Clinician in the Endocrinology Department at Greenlane Clinical Centre and prior to this was the Director of Medicine at Middlemore Hospital and former Head of Department for Endocrinology & Diabetes at Wellington Hospital.

In 2019 he was awarded the Obstetric Medicine Certificate by the Society of Obstetric Medicine of Australia and New Zealand.

Carl has a broad experience in internal medicine including the management of patients with multiple medical co-morbidities.  In addition to his appointments in New Zealand he has been a visiting medical specialist across the Pacific.

Carl welcomes referrals covering all aspects of endocrinology, diabetes, internal medicine and medical disorders in pregnancy.
What is Endocrinology ?
Endocrinology is the science of hormones. Hormones are chemicals produced by one part of the body and act upon another part. 
Your endocrinologist is a specialist doctor interested in diseases that affect your hormones. The major areas endocrinologists work in are:
  • diabetes
  • osteoporosis & Paget’s Disease
  • thyroid diseases
  • sex hormone imbalances
  • disorders of growth and development
  • disorders of the pituitary gland.


What is General Internal Medicine?
General Iinternal Medicine is the branch of medicine that deals with the diagnosis and nonsurgical treatment of diseases affecting the internal organs of the body in adults.
Specialists in this field are called specialist general physicians. They are doctors who have trained in various specialties such as diseases of the heart, lungs, brain and other organs. Often people have more than one part of the body involved in an illness or the exact cause of symptoms is not clear.  The General Physician is an expert in diagnosing what is wrong and managing illnesses that are complex.


Referral Expectations

You will be referred by your General Practitioner (GP) to an endocrinologist if you have a problem with any part of your endocrine system (the system that makes hormones). Your referral will be prioritised (given a position on a list of other referrals) depending on the disease and its severity.
You may be asked to undergo some tests or fill in a questionnaire before seeing the doctor in the clinic to help with the diagnosis. 
You may have ongoing follow-up in the clinic with your specialist or have your treatment carried out by your GP with advice from the specialist.


Dr Eagleton is a Southern Cross Affiliated Provider for Radioactive Iodine consultations and treatment.

Procedures / Treatments

  • Diabetes (diabetes mellitus)

    Diabetes is a disease that affects the way your body deals with sugar.  The amount of sugar in the blood is controlled by insulin which is a hormone produced by the pancreas (an organ that lies near your stomach).… More

  • Osteoporosis

    Osteoporosis is a disease that weakens your bones. Osteoporosis is not painful but it makes your bones more prone to breaking (fracture).  Women are more likely than men to suffer from osteoporosis and as you get older you are more likely to have it.… More

  • Thyroid Disorders

    The thyroid is a gland that sits in the front, and towards the bottom of, your neck.  It is responsible for producing a hormone called thyroxin.  Thyroxin has an important role in the body as it affects many organs including the heart, muscles and bones.  Diseases that affect the thyroid… More

  • Pituitary Gland

    The pituitary gland is in your brain.  It controls most of the endocrine (hormone) system in your body.  When disorders occur in this gland a variety of problems can appear.  If your doctor thinks you have problems in this area (usually discovered with a series of blood tests) they will… More

  • Gestational Diabetes

    Gestation is the length of a pregnancy from conception to birth (usually 40 weeks in humans).… More

  • Polycystic Ovary Syndrome (PCOS)

    Polycystic ovary syndrome (PCOS) is a hormonal disorder that can cause you to have a variety of symptoms, including no periods or irregular periods, increased hair growth on the face and body, acne (pimples) and increased bodyweight.… More

Public Transport

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Extensive free patient parking is provided at the Mercey Specialist Centre.


Marina Specialists: www.marinaspecialists.co.nz

Contact Details

This page was last updated at 11:54AM on April 13, 2021. This information is reviewed and edited by Dr Carl Eagleton - Endocrinologist & Specialist Physician.