Shadpour Demehri, MD

The Johns Hopkins Department of Otolaryngology-Head and Neck Surgery has been delivering expert patient care and research innovation for over a century. Founded in 1914, the department grew from a small group of ear, nose, and throat physicians to an international leader in otolaryngology and head and neck cancer care. Johns Hopkins is proud to provide comprehensive multi-disciplinary care for ear, nose, throat and head and neck conditions in Baltimore, Maryland and the Washington D.C. metropolitan area.

Murugappan “Murray” Ramanathan is an experienced sinus and skull base surgeon with a high-volume clinical presence at Johns Hopkins Health Care and Surgery Center in Bethesda and Suburban Hospital. He specializes in complex revision endoscopic sinus surgery, endoscopic approaches to the orbit, and the endoscopic management of sinonasal and skull base tumors, including inverted papilloma, esthesioneuroblastoma (also known as olfactory neuroblastoma) and pituitary tumors. He routinely collaborates with colleagues in neurosurgery, ophthalmology, head and neck oncology, and facial plastic surgery to deliver multidisciplinary, patient-centered care. Dr. Ramanathan has consistently been recognized for his patient-centered approach to care as a “Top Doctor” by Bethesda Magazine, Washingtonian, Northern Virginia Magazine and Castle Connolly. He earned his undergraduate degree from Yale University and medical degree from the University of Texas Medical Branch at Galveston. Dr. Ramanathan completed an internship in general surgery and residency in otolaryngology–head and neck surgery at Johns Hopkins, followed by fellowship training in advanced endoscopic sinus and minimally invasive skull base surgery at Johns Hopkins. He joined the Johns Hopkins faculty in 2010. Dr. Ramanathan is the vice director of clinical operations for the Johns Hopkins Department of Otolaryngology–Head and Neck Surgery, overseeing the delivery and integration of otolaryngologic care at nine ambulatory clinic sites and five hospitals within Johns Hopkins Medicine. He is passionate about continuously evaluating and improving care delivery processes across all clinical sites for the department. As a surgeon-scientist, Dr. Ramanathan leads a National Institutes of Health-funded research program that was among the first to establish the link between air pollution and chronic rhinosinusitis from an epidemiologic and basic science perspective. He has received numerous prestigious research awards and grants; has published over 110 peer-reviewed articles, reviews and book chapters; and is frequently invited to speak about his research at national and international meetings. Dr. Ramanathan holds multiple national leadership roles, including chair of the CORE Grants General Section for the American Academy of Otolaryngology–Head and Neck Surgery.

Nyall London has a unique clinical practice focused on the care of patients with sinonasal and skull base cancers. As one of the few surgeons trained in both head and neck cancer surgery, as well as rhinology and skull base surgery, he offers patients comprehensive sinonasal tumor surgical care, including open and endoscopic approaches as well as neck dissection surgery. Dr. London has developed notable patient education events about the multidisciplinary and long-term care of patients with sinonasal malignancies. Additionally, he is an innovator of clinical trials for these rare tumors, with open clinical trial options available and multiple others in development. Internationally recognized for his expertise in the care of patients with sinonasal and skull base cancers, Dr. London was an associate editor for the first international consensus statement on sinonasal tumors, and was appointed president of the International Network for Sinonasal Cancer Research (2024–26). He directs a research laboratory at the National Cancer Institute/National Institutes of Health focused on therapeutic advances and mechanisms of sinonasal tumorigenesis. Dr. London has published more than 130 peer-reviewed research articles, reviews and book chapters, including co-first author publications in Nature, Nature Medicine, Science Translational Medicine and Nature Cell Biology. He earned his medical and doctoral degrees from the University of Utah, and completed his residency in otolaryngology–head and neck surgery at Johns Hopkins. He also accomplished a fellowship in open and endoscopic head and neck and skull base surgery at The Ohio State University, under the direction of Dr. Ricardo Carrau.