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 Advanced provider by MediFind in the treatment of Rathke Cleft Cyst. His top areas of expertise are Cushing's disease, Pituitary Tumor, Cushing's syndrome, Ectopic Cushing's syndrome, and Gamma Knife Radiosurgery.

Dr. Kathuria received his medical degree and completed his radiology residency training from Pt. B.D. Sharma Postgraduate Institute of Medical Sciences in India. To understand the impact of diseases, their prevention and cure at broad population level, he spent two years pursuing a masters in public health at University at Buffalo, SUNY. He then completed three fellowship trainings including diagnostic neuroradiology, interventional neuroradiology and advanced neuroimaging from University of Rochester, NY. He joined Johns Hopkins as a faculty member in April 2008. He went on to complete three fellowship trainings including diagnostic neuroradiology, interventional neuroradiology and advanced neuroimaging from University of Rochester, NY. He then served as a Johns Hopkins faculty member before leaving Johns Hopkins to work in a private practice. Dr. Kathuria has been recognized with awards including the 2010 Best Scientific Exhibit Award at the ASSR Annual Symposium for Percutaneous Technique in Approaching Anterior Epidural Space for Diagnosis and Therapeutic Interventions and a 2007 Certificate of Merit for diffusion tensor imaging and fiber tracking in Wallerian degeneration at the American Roentgen Ray Society Annual Meeting. Dr. Kathuria is rated as an Advanced provider by MediFind in the treatment of Rathke Cleft Cyst. His top areas of expertise are Herniated Disk, Scoliosis, Familial Porencephaly, Choroid Plexus Cyst, and Vertebroplasty.

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 Advanced provider by MediFind in the treatment of Rathke Cleft Cyst. His top areas of expertise are Olfactory Neuroblastoma, Chordoma, Pituitary Tumor, Endoscopic Transnasal Transsphenoidal Surgery, and Awake Craniotomy.

Dr. Jon Weingart focuses on the surgical treatment of brain tumors including benign and malignant tumors. Dr. Weingart also specializes in spinal disorders, such as cervical and lumbar disc disease, as well as other congenital and developmental abnormalities such as tethered spinal cord, spina bifida and chiari malformation. Dr. Weingart is rated as an Experienced provider by MediFind in the treatment of Rathke Cleft Cyst. His top areas of expertise are Glioblastoma, Astrocytoma, Glioma, Awake Craniotomy, and Osteotomy.

Nicholas Argento, M.D. attended Georgetown University and graduated Magna Cum Laude with a BS in Biology, then the University of Maryland School of Medicine and graduated Cum Laude. He completed his residency in Internal Medicine and fellowship in Diabetes, Endocrine and Metabolism at the University of Maryland Medical System. He joined Maryland Endocrine full time in 1991. He has been the Medical Advisor to the diabetes program at Johns Hopkins Howard County Medical Center since 1995, and gives talks regularly to medical and patient audiences on diabetes. He has a strong interest in type 1 diabetes (T1D), and has extensive experience in utilizing insulin pumps and continuous glucose monitoring (CGM) to help patients safely achieve better blood glucose control. He has 4 publications in medical journals on different aspects of CGM use, and was co-author or contributor to multiple chapters in the 2013 American Diabetes Association book, Putting Your Patient On The Pump, 2nd edition. He has presented clinical research multiple times at the American Diabetes Association Scientific Sessions and other medical meetings, and has spoken to local, national, and international audiences on insulin pumps and the clinical application of CGM technology. He is very active on and lends medical support to and has written numerous articles for the T1DExchange website myglu.org, a website dedicated to outreach, research and engagement of and for the T1D community. For more information, visit marylandendocrine.com. Dr. Argento is rated as an Experienced provider by MediFind in the treatment of Rathke Cleft Cyst. His top areas of expertise are Type 1 Diabetes (T1D), Hypothyroidism, Type 2 Diabetes (T2D), and Vitamin D Deficiency.

Mari Groves is a Johns Hopkins pediatric neurosurgeon who cares for children with brain and spinal cord tumors (benign and cancerous), skeletal dysplasia, and spinal deformities such as neuromuscular and early scoliosis. She also sees patients diagnosed with Chiari malformations, spasticity and epilepsy. She specializes in treating patients with all types of spina bifida, including myelomeningocele. As part of the Johns Hopkins Center for Fetal Therapy, she is an expert in prenatal closure techniques such as minimally invasive fetoscopic repair of myelomeningocele (when the spina bifida defect is repaired before birth). Offering a transitional practice model of care, she follows patients diagnosed with spina bifida from birth to adulthood. Dr. Groves chose to pursue neurosurgery because it allows her to treat patients with complex conditions and help improve the quality of children’s lives. Her research interests focus on pediatric spinal disease and how surgical intervention can impact growth and neurological function during a child’s life. She is committed to building programs that support patients with congenital disorders as they age. Pediatric patients often age out of existing programs and have difficulty locating physicians and treating teams that understand their conditions. At Johns Hopkins, we have a unique ability to provide this type of comprehensive care. Dr. Groves earned her medical degree from the Vanderbilt University School of Medicine in 2007. She completed residency training in 2014 at The Johns Hopkins Hospital, where she remained for a neurosurgery fellowship, which she finished in 2015. She also completed a spinal deformity fellowship at Shriners Hospitals for Children in Philadelphia. Dr. Groves is rated as an Experienced provider by MediFind in the treatment of Rathke Cleft Cyst. Her top areas of expertise are Spinal Tumor, Myelomeningocele, Tethered Cord Syndrome, Osteotomy, and Laminectomy.

Alan R. Cohen is the director of pediatric neurosurgery at Johns Hopkins Children’s Center in Baltimore, Maryland, and one of the top pediatric neurosurgeons in the country. His area of specialty is treating infants and children diagnosed with brain tumors. Dr. Cohen’s goal is to get his patients back to being a kid again. He has a patient-centered approach to caring for each of his patients, working closely with the child’s family at every stage of the decision-making process. Dr. Cohen sees patients in the neurosciences clinic located in the Levi Watkins, Jr., M.D., Outpatient Center. As the Carson-Spiro Professor of Pediatric Neurosurgery, Dr. Cohen is a leader in developing minimally invasive techniques to enhance the safety and efficacy of selected pediatric neurosurgical procedures. He serves as director of the Minimally Invasive Neurosurgery Laboratory at Johns Hopkins and directs the Minimally Invasive Neurosurgery Fellowship Program. His lab focuses on developing novel instruments and surgical approaches. He has authored more than 200 peer-reviewed journal articles and book chapters, and published two textbooks. He has given approximately 330 national and international presentations, and has been an invited visiting professor at 50 medical centers. He is past president of the Society of Neurological Surgeons, the American Society of Pediatric Neurosurgeons and the AANS/CNS Section on Pediatric Neurological Surgery. He is past vice president of the American Academy of Neurological Surgery, a past director of the American Board of Neurological Surgery and current director of the American Board of Pediatric Neurological Surgery. Patient Reviews Hear what patients have to say about Dr. Cohen’s care: • Healthgrades Patient Reviews • Vitals Patient Reviews. Dr. Cohen is rated as an Experienced provider by MediFind in the treatment of Rathke Cleft Cyst. His top areas of expertise are Arachnoid Cysts, Meningocele, Hydrocephalus, Endoscopy, and Cerebral Artery Bypass Surgery.

Dr. Henderson is the Frank B. Walsh Professor of Neuro-Ophthalmology at the Wilmer Eye Institute and is the Chief of the Wilmer Neuro-Ophthalmology Division. She attended medical school at Emory University, completed an ophthalmology residency at the Medical College of Georgia, and completed a fellowship in neuro-ophthalmology at the Bascom Palmer Eye Institute. Her research interests include optic neuropathies, specifically non-arteritic anterior ischemic optic neuropathy; high-value care; and the use of big data to answer neuro-ophthalmic questions. She also has a particular interest in medical education and serves as the Associate Ophthalmology Residency Program Director and the Neuro-Ophthalmology Fellowship Director. Dr. Henderson is rated as an Experienced provider by MediFind in the treatment of Rathke Cleft Cyst. Her top areas of expertise are Optic Neuritis, Strabismus, Increased Intracranial Pressure, and Optic Atrophy Type 1.

Jennifer Mammen, M.D., Ph.D., Assistant Professor of Medicine, is a member the Division of Endocrinology, Diabetes and Metabolism. Dr. Mammen practices general endocrinology with a focus on thyroid, adrenal and pituitary disorders. She is actively engaged in research on hormonal function and aging. Dr. Mammen is rated as an Experienced provider by MediFind in the treatment of Rathke Cleft Cyst. Her top areas of expertise are Hyperthyroidism, Hypothyroidism, Thyroid Storm, Graves Disease, and Hormone Replacement Therapy (HRT).

Dr. Michael Fingerhood is a professor of medicine and public health at the Johns Hopkins University. His areas of clinical expertise include addiction medicine and internal medicine. He earned his M.D. from the Albert Einstein College of Medicine of Yeshiva University. He completed his residency at Johns Hopkins. Dr. Fingerhood's research interests include substance use disorders, contingency management, hepatitis C and HIV. He is a member of several professional organizations, including the American Society of Addiction Medicine, the American Academy of HIV Medicine, The Society of General Internal Medicine and the American College of Physicians. Dr. Fingerhood is rated as an Experienced provider by MediFind in the treatment of Rathke Cleft Cyst. His top areas of expertise are Opioid Use Disorder, HIV/AIDS, Myelitis, and AIDS Dementia Complex.

Andrea Chamczuk, MD, specializes in neurosurgery and is board-certified in Neurological Surgery by the American Board of Neurological Surgery. Dr. Chamczuk completed her fellowship at Radboud University Medical Center, residency at SUNY at Buffalo Jacobs School of Medicine and medical degree at Saba University School of Medicine. Dr. Chamczuk is rated as an Experienced provider by MediFind in the treatment of Rathke Cleft Cyst. Her top areas of expertise are Subdural Hematoma, Subarachnoid Hemorrhage, Chronic Subdural Hematoma, Stroke, and Laminectomy.

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 an Experienced provider by MediFind in the treatment of Rathke Cleft Cyst. His top areas of expertise are Cerebrospinal Fluid Leak, Prolactinoma, Olfactory Neuroblastoma, Septoplasty, and Endoscopic Transnasal Transsphenoidal Surgery.

Vikram Shenoy, M.D., practices endocrinology at Johns Hopkins Community Physicians Downtown Bethesda. He received his medical degree from University of Connecticut School of Medicine, and also completed his residency in endocrinology at Hospital of the University of Pennsylvania. He practices general endocrinology, including the treatment of thyroid disorders, diabetes, PCOS, pituitary and adrenal disorders, hypogonadism and osteoporosis. Dr. Shenoy is rated as an Experienced provider by MediFind in the treatment of Rathke Cleft Cyst. His top areas of expertise are Type 2 Diabetes (T2D), Maturity Onset Diabetes of the Young, Type 1 Diabetes (T1D), and Hypothyroidism.

Dennis Dey is a Neurologist in Cumberland, Maryland. Dr. Dey is rated as an Experienced provider by MediFind in the treatment of Rathke Cleft Cyst. His top areas of expertise are Stroke, Headache, Myelin Oligodendrocyte Glycoprotein Antibody-Associated Disease, and Transient Ischemic Attack (TIA). Dr. Dey is currently accepting new patients.

Rosalie Naglieri, M.D., is an endocrinologist with Johns Hopkins Community Physicians. Dr. Naglieri attended Upstate Medical University in Syracuse, New York where she received her medical degree. Her residency in internal medicine was served at University of Maryland Medical Center, where she went on to complete her fellowship in Endocrinology, Diabetes and Metabolism. Her interests include thyroid disease, thyroid cancer, diabetes, obesity and polycystic ovarian syndrome. She has been published in Diabetes Care, among other medical journals. When taking care of patients, Dr. Naglieri aims to take care of the whole person, not just their diagnosis. Dr. Naglieri loves being a doctor. She enjoys the relationships she develops with her patients and being their cheerleader in improving their health. Additionally, she has a special interest in plant-based nutrition and its benefits in preventing disease and improving overall health. After growing up in New York, Dr. Naglieri moved to Maryland over 20 years ago. She is married and has two children, a daughter and a son. Dr. Naglieri is rated as an Experienced provider by MediFind in the treatment of Rathke Cleft Cyst. Her top areas of expertise are Hypothyroidism, Maturity Onset Diabetes of the Young, Type 2 Diabetes (T2D), and Type 1 Diabetes (T1D).

Dr. Han Na Kim is a Clinical Associate and part-time Assistant Professor of Medicine in the Division of Endocrinology, Diabetes, and Metabolism. Her clinical practice focuses on metabolic bone disease, including osteoporosis and hyperparathyroidism, as well as diabetes mellitus. She earned her medical degree from the University of Chicago Pritzer School of Medicine, completed her residency in Internal Medicine at New York University, and worked as a hospitalist at University of Pittsburgh Medical Center Presbyterian/Montefiore before pursuing an endocrinology fellowship at Johns Hopkins University School of Medicine. She sees patients at the Johns Hopkins Bayview Metabolic Bone and Osteoporosis Center and Green Spring Station Johns Hopkins Endocrinology Clinic (diabetes and thyroid patients only). Dr. Kim is rated as an Experienced provider by MediFind in the treatment of Rathke Cleft Cyst. Her top areas of expertise are Postmenopausal Osteoporosis, Osteoporosis, Juvenile Primary Osteoporosis, and Hyperparathyroidism.

Ruwani Gunawardane is a Neurologist in Fulton, Maryland. Dr. Gunawardane is rated as an Experienced provider by MediFind in the treatment of Rathke Cleft Cyst. Her top areas of expertise are Migraine, Transient Ischemic Attack (TIA), Cerebellar Degeneration, and Delirium.

Physician Assistant Carla Scott cares for patients with brain tumors, cerebrovascular malformations, Chiari malformations and trigeminal neuralgia. After earning a master’s degree in medical science from Arcadia University, Scott took a position in the Department of Neurosurgery at Johns Hopkins Bayview Medical Center, where she served as surgical first assistant, cared for and consulted on patients staying in the hospital, and oversaw outpatient clinics. Over time, Scott’s work in the department extended to caring for patients being seen in the neurosurgery department at The Johns Hopkins Hospital. Ms. Scott is rated as an Experienced provider by MediFind in the treatment of Rathke Cleft Cyst. Her top area of expertise is Rathke Cleft Cyst.

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 an Experienced provider by MediFind in the treatment of Rathke Cleft Cyst. His top areas of expertise are Meningioma, Pituitary Tumor, Brain Tumor, Awake Craniotomy, and Laminectomy.

Dr. Sachin K. Gujar is an Assistant Professor and Magnetic Resonance Section Chief in Johns Hopkins Department of Radiology and Radiological Sciences. His area of clinical expertise is Neuroradiology. He earned his M.B.B.S. (medical degree) from Byramjee Jeejeebhoy Medical College in Pune, India. After completing a radiology residency (M.D.) at the same college, he completed a two-year neuroradiology fellowship at the University of Michigan, and subsequently was on faculty at University of Michigan for over 5 years. Dr. Gujar has been a member of the Johns Hopkins Neuroradiology faculty since 2008. Dr. Gujar’s areas of clinical interest include all aspects of adult neuroradiology, including head and neck radiology, spine and spinal cord disorders, and cerebrovascular diseases, with particular interest in brain tumor imaging, physiologic imaging, and Functional MRI. He has published numerous articles on various topics in Neuroradiology. Dr. Gujar is rated as an Experienced provider by MediFind in the treatment of Rathke Cleft Cyst. His top areas of expertise are Normal Pressure Hydrocephalus, Hydrocephalus, Cerebral Arteriovenous Malformation, Stroke, and Microvascular Decompression.