Nikita Machado, MD, FACS 

Northeast Georgia Medical Center | AAES Active Member

About Dr. Machado

Nikita Machado MD, FACS is a fellowship-trained endocrine surgeon and Associate Program Director for the General Surgery Residency at Northeast Georgia Medical Center (NGMC) in Gainesville, Georgia. After completing her general surgery residency from University Hospitals Cleveland Medical Center in 2018, she practiced as a general surgeon prior to completing an endocrine surgery fellowship at Yale New Haven Hospital in 2023. She leads NGMC's Endocrine Surgery Center of Excellence, the first in the state to earn that SRC designation, with a practice built around patient education, individualized treatment planning, and close collaboration.

Tamanie Yeager, MD, FACS 

Baylor College of Medicine - Temple | AAES Active Member

About Dr. Yeager

Tamanie Yeager, MD, FACS is an endocrine surgeon and Assistant Professor of Surgery at Baylor College of Medicine – Temple campus, practicing within Baylor Scott & White Health. She specializes in the surgical management of thyroid, parathyroid, and adrenal disorders, with a clinical focus on delivering evidence-based, patient-centered care.

Frédéric Mercier, MD, MSc

University of Montreal | AAES Active Member

About Dr. Frédéric Mercier

Frédéric Mercier, MD, MSc, is an endocrine and oncologic surgeon with expertise in thyroid, parathyroid, adrenal, and neuroendocrine tumor (NET) surgery. He completed medical school and general surgery residency at the Université de Montréal, followed by a fellowship in endocrine surgery at the University of Chicago and a second fellowship in surgical oncology in Lyon, France, focused on neuroendocrine tumors and peritoneal surface malignancies.

Saba Kurtom, MD, BS

University of Washington | AAES Active Member

About Dr. Saba Kurtom

Saba Kurtom, MD is board-certified general surgeon and surgical oncologist. She completed her Endocrine Surgery and Complex General Surgical Oncology fellowships at the University of Pittsburgh. She currently serves as Assistant Professor of Surgery at the University of Washington in Seattle, WA. Her practice focuses on endocrine surgery and skin/soft tissue oncology, with a special interest in robotic surgery.

Kristen Limbach, MD

Tulane University School of Medicine | AAES Active Member

About Dr. Limbach

Kristen Limbach, MD is an Assistant Professor of Surgery at Tulane University School of Medicine with a specialty in Complex General Surgical Oncology and neuroendocrine neoplasm care. She completed her undergraduate education at Dartmouth College and her medical degree at Case Western Reserve University School of Medicine. She then completed her general surgery residency at Oregon Health & Science University in Portland, Oregon, where she became engaged in clinical research in neuroendocrine neoplasms under the mentorship of Dr. Rodney Pommier. From there, she went on to complete a Complex General Surgical Oncology fellowship at City of Hope National Medical Center, where she continued her interest in neuroendocrine research. After training she joined clinical partners Dr. Mary Maluccio and Dr. J. Philip Boudreaux in a high volume neuroendocrine focused practice in New Orleans, Louisiana, where she is currently practicing and building a translational research program focused on metastatic neuroendocrine neoplasms.

Salman Alsafran, MD, FACS

Jaber-Al-Ahmad Hospital | AAES Active Member

Man Him Matrix Fung, MD

LKS Faculty of Medicine, The University of Hong Kong | AAES Corresponding Member 

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About Dr. Matrix Fung

Dr. Matrix Fung was born and raised in Hong Kong, where he earned his medical degree from The University of Hong Kong. Following his graduation, he completed his general surgery residency and endocrine surgery fellowship training at Queen Mary Hospital. Dr. Fung currently serves as Clinical Assistant Professor and Chief of Endocrine Surgery in the Department of Surgery, School of Clinical Medicine, at the LKS Faculty of Medicine, The University of Hong Kong.

Guillermo Ponce de León Ballesteros, MD 

Hospital Angeles Morelia | AAES Active Member

About Guillermo Ponce de León Ballesteros

Dr. Guillermo Ponce de Leon Ballesteros is a general, endocrine and metabolic-bariatric surgeon from Morelia, Mexico. He earned his Doctor of Medicine degree from Universidad La Salle in Mexico City. Dr. Ballesteros completed his General Surgery residency at the Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán (INCMNSZ) (2012-2017), where he also completed a fellowship in Endocrine Surgery (2017-2018).

Bo Wang, MD, PhD

Fujian Medical University Union Hospital | AAES Corresponding Member

About Dr. Bo Wang 

Bo Wang, MD, PhD, is a thyroid surgeon and Associate Professor at Fujian Medical University Union Hospital in Fuzhou, China, where he serves as Deputy Director of the Department of Thyroid Surgery and as a doctoral and master’s supervisor. His clinical practice focuses on thyroid cancer, complex and reoperative thyroid surgery, and endoscopic and robotic approaches, with particular emphasis on preserving recurrent laryngeal nerve and parathyroid function.

His principal research focus is PTAIR, a computer-vision platform for AI-assisted recognition of the parathyroid glands, recurrent laryngeal nerve, and other critical structures during thyroid surgery. He also develops surgical-video annotation workflows that connect clinical expertise with machine learning and integrates near-infrared autofluorescence, indocyanine green perfusion imaging, and intraoperative neuromonitoring to improve real-time surgical guidance. Dr. Wang serves as Deputy Editor of the American Thyroid Association’s Video Endocrinology and as a member of the ATA Publications Committee. He was also a visiting scholar in thyroid surgery at Massachusetts General Hospital and Harvard Medical School. His goal is to translate innovation into practical tools that make thyroid surgery safer, more precise, and easier to teach.