Wikipedia
A thyroidologist is a medical practitioner specializing in the thyroid and related areas.
In the United States it refers to a board certified endocrinologist physician, who is either a full time academician with multiple responsibilities beside thyroid patient care, or a clinical thyroidologist. A clinical thyroidologist is a board certified endocrinologist, who cares for a majority of thyroid patients, with few patients experiencing other endocrine conditions. The American Association of Clinical Endocrinologists (AACE) developed the ENDOCRINE CERTIFICATION IN NECK ULTRASOUND (ECNU) program. ECNU is a professional certification in the field of neck ultrasonography for Endocrinologists, Thyroidologists, and Thyroidology practices who perform consultations and diagnostic evaluations for thyroid and parathyroid disorders through both diagnostic ultrasound and ultrasound-guided fine needle aspiration (UGFNA). ECNU is seen as a distinguished certification, which increases public and patient confidence in thyroid ultrasound practice.
Physicians and medical practices whom hold the distinction of Endocrine Certification in Neck Ultrasound (ECNU) professional certification are highly specialized thyroidologist. in the field of neck ultrasonography for physicians who perform consultations and diagnostic evaluations for thyroid and parathyroid disorders through both diagnostic ultrasound and ultrasound-guided fine needle aspiration (UGFNA)
The major goal is to deliver the best thyroid patient care with the use of modern tools. This includes office based thyroid ultrasound ("US"), Medical ultrasonography, US guided FNA, Percutaneous Ethanol Injections ("PEI"), for thyroid cysts, and thyroid cancer lymph nodes.
Also, office thyroid nuclear studies and treatments, such as I/123 uptakes, scans, I/131 therapy for cancer, Graves', toxic nodular goiter, and large nontoxic goiters with obstruction. Finally, office based thyroid blood hormone studies, such as T4, T3, TSH, TPO thyroid antibodies, and cancer markers thyroglobulin, TG and Calcitonin, CT.
The clinical thyroidologist is usually also a member of academic endocrine societies, such as the Endocrine Society, and the American Thyroid Association, and the American College of Endocrinology. He may be a member of the Academy of Clinical Thyroidologists, recently founded in 2005.