Print Departments and specialties Mayo Clinic has one of the largest and most experienced practices in the United States, with campuses in Arizona, Florida and Minnesota. Staff skilled in dozens of specialties work together to ensure quality care and successful recovery. Departments with related expertise Cancer Care at Mayo Clinic Endocrine Surgery Endocrinology Oncology (Medical) Otolaryngology (ENT)/Head and Neck Surgery Surgery Surgical Oncology and Endocrine Surgery in Arizona Areas that research this procedure Otolaryngology — Head and Neck Surgery Research Doctors who perform this procedure Edit search filters close Narrow your search By location Jacksonville, FL By last name There are no doctors whose last name begins with the letter A A There are no doctors whose last name begins with the letter B B Find a doctor whose last name begins with the letter C C Find a doctor whose last name begins with the letter D D Find a doctor whose last name begins with the letter E E Find a doctor whose last name begins with the letter F F There are no doctors whose last name begins with the letter G G Find a doctor whose last name begins with the letter H H There are no doctors whose last name begins with the letter I I active Find a doctor whose last name begins with the letter J J There are no doctors whose last name begins with the letter K K Find a doctor whose last name begins with the letter L L Find a doctor whose last name begins with the letter M M There are no doctors whose last name begins with the letter N N There are no doctors whose last name begins with the letter O O Find a doctor whose last name begins with the letter P P There are no doctors whose last name begins with the letter Q Q There are no doctors whose last name begins with the letter R R Find a doctor whose last name begins with the letter S S Find a doctor whose last name begins with the letter T T There are no doctors whose last name begins with the letter U U There are no doctors whose last name begins with the letter V V There are no doctors whose last name begins with the letter W W There are no doctors whose last name begins with the letter X X Find a doctor whose last name begins with the letter Y Y There are no doctors whose last name begins with the letter Z Z Reset all filters Search Tips Use quotes for phrases. Even if there are no auto-suggestions within the search field, hit "Search" anyway, as you may still get results. Displaying 1-1 out of 1 doctors available Last Name Initial: J Jeffrey R. Janus, M.D. Otolaryngologist Jacksonville, FL Areas of focus: Robotic surgery, Transnasal endoscopic procedure, Thyroidectomy, Transoral robotic surgery, Parathyroidectomy, Microvas...cular surgery, Parotid gland surgery, Neck surgery, Head and neck reconstruction, Head and neck cancer surgery, Transnasal pituitary surgery, Thyroid cancer, Mouth cancer, Salivary gland tumor, Throat cancer, Soft palate cancer, Skull base tumor, Oropharyngeal cancer, Parathyroid adenoma Show more areas of focus for Jeffrey R. Janus, M.D. By Mayo Clinic Staff Request an appointment About Sept. 03, 2022 Print Show references Townsend CM Jr, et al. Thyroid. In: Sabiston Textbook of Surgery: The Biological Basis of Modern Surgical Practice. 21st ed. Elsevier; 2022. https://www.clinicalkey.com. Accessed July 23, 2022. Jameson JL, et al., eds. Surgery of the thyroid. In: Endocrinology: Adult and Pediatric. 7th ed. Philadelphia, Pa.: Saunders Elsevier; 2016. https://www.clinicalkey.com. Accessed July 23, 2022. Thyroid surgery. American Thyroid Association. https://www.thyroid.org/thyroid-surgery/. Accessed July 23, 2022. AskMayoExpert. Hyperthyroidism. Mayo Clinic. 2021. Haugen BR, et al. 2015 American Thyroid Association management guidelines for adult patients with thyroid nodules and differentiated thyroid cancer. Thyroid. 2016. doi:10.1089/thy.2015.0020. Gharib H, et al. American Association of Clinical Endocrinologists, American College of Endocrinology, and Associazione Medici Endocrinologi Medical Guidelines for Clinical Practice for the Diagnosis and Management of Thyroid Nodules — 2016 Update. Endocrine Practice. 2016. doi:10.4158/EP161208.GL. Health Education & Content Services (Patient Education). Care following thyroidectomy and parathyroidectomy. Mayo Clinic; 2021. Wang TS, et al. Thyroidectomy. https://www.uptodate.com/contents/search. Accessed July 23, 2022. Nippoldt TB (expert opinion). Mayo Clinic. Aug. 1, 2022. Related Goiter Graves' disease Hurthle cell cancer Hyperthyroidism (overactive thyroid) Thyroid cancer Thyroid gland Thyroid nodules Show more related content ThyroidectomyAboutDoctors&Departments PRC-20309663 Patient Care & Health Information Tests & Procedures Thyroidectomy