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Johns Hopkins

Johns Hopkins Pediatric

Meet Our Experts

Kailyn Frazier, M.D.

Kailyn Frazier, M.D.

Kailyn Frazier, M.D.

Head and neck endocrine surgeon Kaitlyn Frazier specializes in treatment of benign and malignant diseases of the thyroid and parathyroid glands, including advanced thyroid cancers. Part of a multidisciplinary team that includes endocrinologists, airway surgeons, head and neck reconstructive surgeons, and speech-language pathologists, she offers patients a range of surgical options including traditional open surgeries as well as transoral or scarless thyroid surgery and nonsurgical ablation of thyroid nodules.

Dr. Frazier’s research interests include clinical and quality of life outcomes for radiofrequency and microwave ablation of benign thyroid nodules, radiofrequency ablation of thyroid microcarcinomas, remote access surgery and advanced therapies for thyroid cancer. She is the principal investigator of several clinical trials studying the efficacy of new technologies to aid in treatment of thyroid and parathyroid disorders.

Dr. Frazier is a member of the American Thyroid Association, the Endocrine Surgery Section of the American Head and Neck Society, the North American Society for Interventional Thyroidology and the American Academy of Otolaryngology–Head and Neck Surgery.


Jenny X. Chen, M.D., Ed.M.

Jenny X. Chen, M.D., Ed.M. width=

Jenny X. Chen, M.D., Ed.M.

Jenny X. Chen is an expert in the treatment of ear conditions including hearing loss, vertigo, vestibular schwannomas (acoustic neuromas), cholesteatomas, cerebrospinal fluid leaks and eardrum perforations. She is trained in minimally invasive, endoscopic surgical approaches to treating the ear and performs surgeries including cochlear implants, bone-anchored hearing aids and stapedectomy. She treats patients of all ages.

Dr. Chen earned her medical degree from Harvard Medical School. She completed residency training in otolaryngology–head and neck surgery at Massachusetts Eye and Ear/Harvard Medical School and advanced fellowship training in otology/neurotology at the Johns Hopkins University School of Medicine. She is a board-certified otolaryngologist–head and neck surgeon.

Dr. Chen’s research interests are in surgical education, competency-based medical education, as well as health equity for patients with hearing loss. She is the co-director of undergraduate medical education for the Department of Otolaryngology–Head and Neck Surgery at Johns Hopkins.

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