Dr. Gary Gallia's specialty is endoscopic endonasal surgical approaches to skull base pathologies with a focus on neurosurgical oncology. He utilizes the latest techniques in preoperative imaging, computer-guided surgical navigation, intraoperative monitoring, and minimally invasive and Neuroendoscopy approaches in the management of patients with benign and malignant brain tumors, metastatic tumors to the brain, skull base neoplasms, and pituitary tumors. He is the director of the Neurosurgery Skull Base Center and surgical director of the Johns Hopkins Pituitary Center. Dr. Gary Gallia graduated summa cum laude from the Gibbons Scholar MD/PhD program at Jefferson Medical College and Thomas Jefferson University. He completed his general surgery internship at The Johns Hopkins Hospital where he was awarded surgical intern of the year. He then completed his neurological surgery residency and a postdoctoral fellowship in neuro-oncology at The Johns Hopkins Hospital. Following residency, he completed a minimally invasive and endoscopic neurosurgery fellowship with Dr. Charles Teo at the Prince of Wales Private Hospital and Sydney Children's Hospital in Sydney, Australia. Dr. Gallia is rated as an Elite provider by MediFind in the treatment of Pituitary Tumor. His top areas of expertise are Olfactory Neuroblastoma, Chordoma, Pituitary Tumor, Awake Craniotomy, and Craniectomy.

Amir Hamrahian, M.D. is an endocrinologist with specialized experience in the treatment of adrenal and pituitary disorders. Dr. Hamrahian is located in Baltimore, Maryland. He received his medical degree from Hacettepe University in Ankara, Turkey, did his internal medicine residency at the University of North Dakota and completed his endocrinology fellowship at the Case Western Reserve University. Dr. Hamrahian is an Associate Professor of Medicine and has published more than 80 peer-reviewed articles, and has served as a co-author in developing guidelines for adrenal and pituitary disorders. He has presented at national and international conferences and has served as the principal investigator for a number of clinical research studies. Accolades received include Teacher of The Year award and Human Subject Research Annual Professional Excellence award in 2003 and 2011, respectively. Dr. Hamrahian has held roles including the chief of endocrinology in Abu Dhabi. Dr. Hamrahian is a co-director of the Adrenal Center. Dr. Hamrahian is rated as an Elite provider by MediFind in the treatment of Pituitary Tumor. His top areas of expertise are Cushing's disease, Pituitary Tumor, Cushing's syndrome, Hypothalamic Tumor, and Gamma Knife Radiosurgery.

Roberto Salvatori is an Endocrinologist in Baltimore, Maryland. Dr. Salvatori is rated as an Elite provider by MediFind in the treatment of Pituitary Tumor. His top areas of expertise are Growth Hormone Deficiency (GHD), Hypopituitarism, Pituitary Tumor, Cushing's syndrome, and Hormone Replacement Therapy (HRT).

Dr. Debraj “Raj” Mukherjee’s clinical focus is the treatment of patients with primary and metastatic brain lesions. His clinical work and research emphasize the development of individual treatment plans that optimize survival and quality of life in all patients. After receiving his medical degree from Dartmouth Medical School, Dr. Mukherjee was recruited to Johns Hopkins, where he studied epidemiology, biostatistics and clinical design at the Johns Hopkins Bloomberg School of Public Health and served as Director of the Neuro-Oncology Surgical Outcomes Laboratory in the Department of Neurosurgery. Dr. Mukherjee completed neurosurgery residency at Cedars-Sinai Medical Center, where he was named a Robert Wood Johnson Foundation Health & Society Scholar. He completed an open and endoscopic skull base fellowship with the Center for Skull Base Surgery at University of Pittsburgh Medical Center, where he was a Copeland Scholar. Throughout his career, Dr. Mukherjee has led patient-centered research pursuits in neuro-oncology including development of a national registry for patients with brain tumors, creation of disease-specific quality of life instruments for patients with skull base tumors, and development of innovative clinical trials in neuro-oncology. He leads the Meningioma, Brain Metastasis, and Neurosurgical Oncology centers at Johns Hopkins Medicine, and he serves as Assistant Residency Program Director for one of the largest neurosurgical training programs in the country. His work has been supported by the American Medical Association, Glioblastoma Foundation, National Institute on Aging, and National Cancer Institute. Dr. Mukherjee can be contacted at drraj@jhmi.edu. Dr. Mukherjee is rated as a Distinguished provider by MediFind in the treatment of Pituitary Tumor. His top areas of expertise are Meningioma, Pituitary Tumor, Brain Tumor, Awake Craniotomy, and Craniectomy.

Nicholas Rowan is a sinus and skull base surgeon who helps patients with conditions such as deviated septum, nasal congestion, nasal obstruction, sinus pressure and chronic sinusitis, as well as complex issues like loss of smell, sinus cancers, cerebrospinal fluid (CSF) leaks and tumors that grow near the brain. He frequently performs nasal polyp surgery and endoscopic sinus procedures, using minimally invasive approaches to help patients recover quickly and breathe more easily. For tumors of the skull base or brain, he works closely with neurosurgeons and cancer specialists to deliver coordinated, comprehensive care. Dr. Rowan’s research is focused on improving patients’ quality of life and long-term outcomes after sinus and skull base surgery. A major part of his work involves studying the sense of smell — not just how to restore it, but how it reflects overall health. He explores how smell loss may be an early warning sign of unhealthy aging, frailty or cognitive decline. Through this work, he aims to better understand the biological link between the nose and brain, and what it can reveal about a person’s health trajectory. He works closely with biomedical engineers to develop novel diagnostic and therapeutic technologies, and he is the principal investigator of multiple ongoing clinical trials that are testing new treatments for chronic sinusitis and nasal polyps. A frequent speaker at national and international conferences, Dr. Rowan shares insights from his innovative research and surgical experience. He leads courses and delivers lectures on advanced sinus and skull base techniques, smell loss and the evolving science behind how nasal health connects to overall well-being. Dr. Rowan is rated as a Distinguished provider by MediFind in the treatment of Pituitary Tumor. His top areas of expertise are Sinusitis, Anosmia, Pituitary Tumor, Endoscopy, and Septoplasty.

Kashif Munir is an Endocrinologist in Baltimore, Maryland. Dr. Munir is rated as a Distinguished provider by MediFind in the treatment of Pituitary Tumor. His top areas of expertise are Type 2 Diabetes (T2D), Thyroid Cancer, Thyroid Storm, Pituitary Tumor, and Thyroidectomy.

Dr. Masaru Ishii graduated from University of Pennsylvania Perelman School of Medicine. His clinical specialties include surgical management of nasal airway obstruction, chronic sinusitis and sinonasal tumors, as well as endoscopic surgery for skull base tumors. Dr. Ishii is rated as a Distinguished provider by MediFind in the treatment of Pituitary Tumor. His top areas of expertise are Olfactory Neuroblastoma, Cerebrospinal Fluid Leak, Prolactinoma, Septoplasty, and Endoscopy.

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. Dr. Ramanathan is rated as a Distinguished provider by MediFind in the treatment of Pituitary Tumor. His top areas of expertise are Pituitary Tumor, Sinusitis, Chronic Rhinosinusitis with Nasal Polyps (CRSwNP), and Ethmoiditis.

Lynnette Nieman is an Endocrinologist in Bethesda, Maryland. Dr. Nieman is rated as a Distinguished provider by MediFind in the treatment of Pituitary Tumor. Her top areas of expertise are Cushing's syndrome, Ectopic Cushing's syndrome, Cushing's disease, and Pituitary Tumor.

Jack Snitzer is an Endocrinologist in Salisbury, Maryland. Dr. Snitzer is rated as a Distinguished provider by MediFind in the treatment of Pituitary Tumor. His top areas of expertise are Type 1 Diabetes (T1D), Type 2 Diabetes (T2D), Obesity in Children, and Toxic Nodular Goiter.

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. Dr. London is rated as an Advanced provider by MediFind in the treatment of Pituitary Tumor. His top areas of expertise are Olfactory Neuroblastoma, Sinus Cancer, Teratocarcinosarcoma, Endoscopy, and Craniectomy.

Dr. Gary Wand is a professor of medicine at the Johns Hopkins University School of Medicine. He holds a joint appointment in psychiatry and behavioral sciences. His areas of clinical expertise include endocrinology, neuroendocrine disorders and pituitary disorders. Dr. Wand serves as the director of the fellowship program and the director of the endocrine training program at the Johns Hopkins School of Medicine. Dr. Wand earned his M.D. and completed his residency at the George Washington University School of Medicine. He performed a fellowship in endocrinology and metabolism at Johns Hopkins. His research interests include the neurobiology of substance abuse and the physiogenetics of the stress response. Dr. Wand has been recognized in “Best Doctors in America” and is a recipient of the National Institutes of Health Merit Award. Dr. Wand is rated as an Advanced provider by MediFind in the treatment of Pituitary Tumor. His top areas of expertise are Pituitary Tumor, Prolactinoma, Cushing's syndrome, and Hypopituitarism.

Henry Brem is a Neurosurgery provider in Baltimore, Maryland. Dr. Brem is rated as an Advanced provider by MediFind in the treatment of Pituitary Tumor. His top areas of expertise are Gliosarcoma, Glioma, Gliomatosis Cerebri, Osteotomy, and Posterior Fossa Decompression.

Prashant Chittiboina is a Neurosurgery provider in Bethesda, Maryland. Dr. Chittiboina is rated as a Distinguished provider by MediFind in the treatment of Pituitary Tumor. His top areas of expertise are Cushing's disease, Hemangioblastoma, Von Hippel-Lindau (VHL) Syndrome, Pituitary Tumor, and Laminectomy.

Roberto Rey Dios is a Neurosurgery provider in Baltimore, Maryland. Dr. Rey Dios is rated as a Distinguished provider by MediFind in the treatment of Pituitary Tumor. His top areas of expertise are Pituitary Tumor, Subdural Hematoma, Primitive Neuroectodermal Tumor (PNET), Balloon Sinuplasty, and Awake Craniotomy.

Bert O'malley is an Otolaryngologist in Baltimore, Maryland. Dr. O'malley is rated as a Distinguished provider by MediFind in the treatment of Pituitary Tumor. His top areas of expertise are Pituitary Tumor, Salivary Gland Tumors, Sinus Cancer, Endoscopic Transnasal Transsphenoidal Surgery, and Gastrostomy. Dr. O'malley is currently accepting new patients.

Christina Tatsi is a Pediatric Endocrinologist in Bethesda, Maryland. Dr. Tatsi is rated as an Advanced provider by MediFind in the treatment of Pituitary Tumor. Her top areas of expertise are Cushing's disease, Cushing's syndrome, Gigantism, Pituitary Tumor, and Orchiectomy.

Kiarash Zarbalian is an Endocrinologist in Frederick, Maryland. Dr. Zarbalian is rated as an Advanced provider by MediFind in the treatment of Pituitary Tumor. His top areas of expertise are Type 2 Diabetes (T2D), Type 1 Diabetes (T1D), Hypothyroidism, and Thyroid Nodule.

Rana Malek is an Endocrinologist in Baltimore, Maryland. Dr. Malek is rated as an Advanced provider by MediFind in the treatment of Pituitary Tumor. Her top areas of expertise are Type 2 Diabetes (T2D), Addison's Disease, Type 1 Diabetes (T1D), Maturity Onset Diabetes of the Young, and Thyroidectomy.

Anju Verma is an Endocrinologist in Germantown, Maryland. Dr. Verma is rated as an Advanced provider by MediFind in the treatment of Pituitary Tumor. Her top areas of expertise are Hypothyroidism, Maturity Onset Diabetes of the Young, Obesity in Children, and Type 2 Diabetes (T2D).