The 20 Best RASopathies Doctors Near Me in Maryland, US
Find the Top RASopathies Experts and Specialists
Johns Hopkins Outpatient Center
Nurse practitioner Shannon Langmead specializes in neurofibromatosis and is the clinic coordinator of the Johns Hopkins Comprehensive Neurofibromatosis (NF) Center. She evaluates and manages patients with NF1, NF2 and Schwannomatosis. Her special interests include pain management and developing social support networks for patients who have NF. Shannon earned bachelor’s degrees in Spanish and nursing from Saint Francis University in Pennsylvania and Villa Julie College in Maryland, and completed her master’s degree in nursing at The Johns Hopkins University School of Nursing. She has worked as a bedside nurse in neurology and neurosurgery at The Johns Hopkins Hospital and as a part-time clinical faculty member for The Johns Hopkins University School of Nursing. Langmead, NP is rated as a Distinguished provider by MediFind in the treatment of RASopathies. She is also highly rated in 3 other conditions, according to our data. Her clinical expertise encompasses Neurofibromatosis, RASopathies, Neurofibromatosis Type 1 (NF1), and Legius Syndrome. Langmead, NP is board certified in American Nurses Credentialing Center.
Johns Hopkins Health Care & Surgery Center - Green Spring Station, Lutherville
Carlos Romo, M.D., is a neuro-oncologist in Baltimore, Maryland. Dr. Romo specializes in the diagnosis and treatment of brain tumors, including glioblastoma, astrocytomas, oligodendrogliomas, neurofibromas, and schwannomas among others. Dr. Romo earned his medical degree from the School of Medicine and Health Sciences at Tecnológico de Monterrey in Mexico and completed his Neurology residency at the University of Arkansas for Medical Sciences, where he served as chief resident. He then completed a Neuro-oncology clinical and research fellowship in a joint program between The Johns Hopkins University and the National Institutes of Health. Dr. Romo additionally trained as a clinical pharmacology fellow at The Johns Hopkins University and completed training on clinical cancer research at the University of Texas MD Anderson Cancer Center. In his research, Dr. Romo studies drug pharmacokinetics and the blood-brain barrier, and investigates better ways to reach tumors in the central nervous system. Dr. Romo also studies treatments for patient with neurofibromatosis. In addition to patient care and research, Dr. Romo teaches and mentors medical and undergraduate students to help develop a future generation of neurologists. Dr. Romo is rated as an Advanced provider by MediFind in the treatment of RASopathies. He is also highly rated in 13 other conditions, according to our data. His clinical expertise encompasses Neurofibromatosis, Neurofibromatosis Type 1 (NF1), Schwannomatosis, and Astrocytoma. Dr. Romo is board certified in American Board Of Psychiatry And Neurology.
Johns Hopkins Outpatient Center
Dr. Allan Belzberg is a neurosurgeon specializing in surgery of the peripheral nervous system. As Director of Peripheral Nerve Surgery at Johns Hopkins in Baltimore, he treats tumors including schwannoma, neurofibroma and nerve sheath tumor. Dr. Belzberg performs surgical repair of nerve damage caused by trauma as well as neurosurgery on carpal tunnel, peroneal nerve and other peripheral nerve conditions. Dr. Belzberg also directs the Brachial Plexus and Peripheral Nerve Clinic at the Kennedy Krieger Institute and co-directs the Neurosurgery Pain Research Institute at Johns Hopkins Hospital. Dr. Belzberg currently sees patients at the Johns Hopkins Outpatient Center located in Baltimore on Wednesdays and the Green Spring Station location on Fridays. Dr. Belzberg is rated as an Advanced provider by MediFind in the treatment of RASopathies. He is also highly rated in 19 other conditions, according to our data. His clinical expertise encompasses Schwannomatosis, Neurofibromatosis, Thoracic Outlet Syndrome, Rhizotomy, and Laminectomy. Dr. Belzberg is board certified in American Board Of Neurological Surgery.
Are you looking for a specific type of RASopathies?
Common conditions include: Cardiofaciocutaneous Syndrome, Cardiomyopathic Lentiginosis, Costello Syndrome, Legius Syndrome, Noonan Syndrome
Johns Hopkins Outpatient Center
Dr. Ranjit Abraham Varghese is an assistant professor of orthopaedic surgery at the Johns Hopkins University School of Medicine. He is a specialist in pediatric orthopaedics. He focuses on the treatment of cerebral palsy, neuromuscular disorders, andpediatric hip and foot disorders. Dr. Varghese earned his medical degree from Kasturba Medical College of Manipal University in Mangalore India, where he also did his residency. He later earned a master’s degree in health science and clinical epidemiology at the University of British Columbia, Canada. He completed fellowships in pediatric orthopaedics at the University of British Columbia and the University of Minnesota. He also completed a combined orthopedics oncology fellowship at Harvard Medical School, Massachusetts General Hospital, Beth Israel Deaconess Medical Center and Boston Children’s Hospital. He serves as medical director of the Ortho-Cerebral Palsy Program at the Kennedy Krieger Institute. His research interests include cerebral palsy, hip disorders and outcome evaluations. Dr. Varghese is rated as an Experienced provider by MediFind in the treatment of RASopathies. He is also highly rated in 1 other condition, according to our data. His clinical expertise encompasses Spastic Diplegia Infantile Type, Slipped Capital Femoral Epiphysis, Wildervanck Syndrome, and CHARGE Syndrome.
Johns Hopkins Outpatient Center
Chad Gordon is a Plastic Surgeon practicing medicine in Baltimore, Maryland. Dr. Gordon is rated as an Experienced provider by MediFind in the treatment of RASopathies. He is also highly rated in 3 other conditions, according to our data. His clinical expertise encompasses Neurofibromatosis, Legius Syndrome, Neurofibromatosis Type 1 (NF1), Osteotomy, and Bone Graft. Dr. Gordon is board certified in American Board Of Plastic Surgery.
Howard County Medical Pavilion
Dr. Couser obtained his bachelor’s degree from the University of Virginia and his Medical Doctorate from the Virginia Commonwealth University School of Medicine (VCU SOM). Dr. Couser’s ophthalmology residency was completed at Howard University where he served as co-chief resident in the last year of his residency. He received fellowship training in pediatric ophthalmology and adult strabismus at Emory University. Dr. Couser received a master’s degree in biotechnology from the Johns Hopkins University and completed a residency in clinical genetics at the University of North Carolina at Chapel Hill. He is one of only a few individuals currently board-certified by both the American Board of Ophthalmology and the American Board of Medical Genetics and Genomics. CV https://www.hopkinsmedicine.org/-/media/wilmer/documents/cvs/couser-cv Research Summary My primary research focus involves the identification and management of genetic eye diseases including rare inherited disorders affecting the eyes. Research and scholarly activities have been an integral component of my career path. I have been the principal investigator on 10 clinical trial/IRB studies and a co-investigator on others, participated with several committees or advisory panels related to research activities. I have been credited with over 120 book chapter, journal article and abstract publications. In addition, I served as the primary author/sole editor for a textbook titled Ophthalmic Genetic Diseases: A Quick Reference Guide to the Eye and External Ocular Adnexa Abnormalities, 1st Edition, published by Elsevier in 2018, which is one of only a few textbooks published in this subject area. I also served as a grant review panelist for the National Eye Institute Career Development Awards. Selected Publications *Couser NL, Masood MM, Strande NT, Foreman AKM, Crooks K, Weck KE, Lu M, Wilhelmsen KC, Roche M, Evans JP, Berg JS, Powell CM. 2015. The phenotype of multiple congenital anomalies- hypotonia-seizures syndrome 1: Report and review. Am J Med Genet Part A 9999A:1–6 *Couser NL, Lambert SR. Botulinum toxin: A treatment of consecutive esotropia in children. Strabismus 2012; 20(4):158-161 Couser NL, Lenhart PD, Hutchinson AK. Augmented Hummelsheim procedure to treat complete abducens nerve palsy. J AAPOS 2012;16(4):331-5 *Natario L. Couser, Maheer M. Masood, Arthur S. Aylsworth, and Roger E. Stevenson. Ocular manifestations in the X-linked intellectual disability syndromes. Ophthalmic Genet. 2017, Jan 23:1-12 *Couser NL, Brooks BP, Drack AV, Shankar SP. The evolving role of genetics in ophthalmology. Ophthalmic Genet. 2021 Jan 12:1-4. doi: 10.1080/13816810.2020.1868011. Dr. Couser is rated as an Experienced provider by MediFind in the treatment of RASopathies. He is also highly rated in 13 other conditions, according to our data. His clinical expertise encompasses Epicanthal Folds, Strabismus, Hypotonia, and Brown Syndrome. Dr. Couser is board certified in American Board Of Medical Genetics And Genomics and American Board Of Ophthalmology.
Kennedy Krieger Associates
Marco Grados is a Psychiatrist and a Child and Adolescent Psychiatrist practicing medicine in Baltimore, Maryland. Dr. Grados is rated as an Experienced provider by MediFind in the treatment of RASopathies. He is also highly rated in 3 other conditions, according to our data. His clinical expertise encompasses Tourette Syndrome, Obsessive-Compulsive Disorder (OCD), Attention Deficit Hyperactivity Disorder (ADHD), and Anorexia. Dr. Grados is board certified in American Board Of Psychiatry And Neurology.
The Johns Hopkins Hospital
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 RASopathies. He is also highly rated in 5 other conditions, according to our data. His clinical expertise encompasses Normal Pressure Hydrocephalus, Hydrocephalus, Cerebral Arteriovenous Malformation, Stroke, and Microvascular Decompression. Dr. Gujar is board certified in American Board Of Radiology.
Johns Hopkins Bayview Medical Center
Dr. Fisher is an associate professor of plastic surgery in the Johns Hopkins Department of Plastic Surgery. His areas of clinical expertise include burn surgery, burn reconstruction, craniofacial surgery, and reconstructive microsurgery. He serves as the Director of the Johns Hopkins Bayview Adult Burn Center. Committed to acute and reconstructive burn care of the highest quality, Dr. Fisher completed extensive training at multiple leading centers. These included a Burn Fellowship at the Shriners Hospital for Burns in Galveston, a Plastic Surgery Residency at Duke University, a Craniofacial Fellowship at the Hospital for Sick Children in Toronto, and a research fellowship at Harvard. Throughout his career Dr. Fisher has brought the full breadth and depth of his training to care for patients with the most complex injuries and deformities. From 2014 to 2022 he was on the faculty of the University of Iowa where he served in the burn unit, led the craniofacial team, and served the hand trauma team. Recognizing that complex injuries need coordinated care, he developed the Complex Face Group at Iowa to coordinate multiple specialty collaboration. Burns cause disfigurement, disability, and death particularly among the poor in the US and across the globe. Dr. Fisher’s research interests include improving prevention wherever burns happen, improving acute and reconstructive outcomes, and strengthening healthcare systems in the US and abroad in the face of burn and other disasters. His research interests also include wound healing and scar for burns and trauma. He has been a national and international leader in burn care. He founded and chaired the American Burn Association Committee on Reconstruction. He also founded and continues to lead the ABA series of burn reconstruction courses. He is frequently invited to speak internationally and serves actively in burn-related humanitarian agencies. Throughout his career, Dr. Fisher has emphasized the importance of a holistic approach seeking the restoration of not only physical health, but emotional recovery, social connection, and work reintegration of his patients. Dr. Fisher is rated as an Experienced provider by MediFind in the treatment of RASopathies. He is also highly rated in 1 other condition, according to our data. His clinical expertise encompasses Melanoma, Neurofibromatosis, Neurofibromatosis Type 1 (NF1), and Rhinophyma. Dr. Fisher is board certified in American Board Of Plastic Surgery.
Johns Hopkins Outpatient Center
Laryngologist Simon Best specializes in voice and airway disorders, including the comprehensive care of professional voice-users and performers. He treats patients diagnosed with recurrent respiratory papillomatosis (RRP), vocal cord paralysis, laryngeal cancer, precancerous vocal cord dysplasia, benign laryngeal lesions (polyps, cysts, nodules), and laryngeal and tracheal stenosis. He has expertise in the operative management of vocal cord disorders, including Blue Light laser surgery and office-based management of vocal cord papilloma, dysplasia and vocal cord paralysis. Dr. Best earned a medical degree from the Yale School of Medicine and completed residency training in Otolaryngology–Head and Neck Surgery at the Johns Hopkins University School of Medicine. He undertook fellowship training in laryngology at Massachusetts General Hospital. Dr. Best has a particular clinical and research interest in recurrent respiratory papillomatosis and sees patients from across the country for specialized care for this disorder. He offers operative and office-based laser for papilloma, utilizing the Blue Light laser, which allows for precise excision of papilloma while preserving underlying vocal function. Dr. Best is also a pioneer in the adjuvant use of bevacizumab for RRP, helping many patients break the cycle of repeated surgeries. The Best Laboratory studies RRP and the development of novel immunotherapies to target the underlying viral infection. This research is conducted in collaboration with the head and neck cancer and cervical cancer research groups at Johns Hopkins, which also study human papillomavirus-related diseases. In addition, Johns Hopkins is a site for ongoing clinical trials in DNA immunotherapy, the goal of which is to eliminate the causative viral infection that leads to RRP. Dr. Best is rated as an Experienced provider by MediFind in the treatment of RASopathies. He is also highly rated in 14 other conditions, according to our data. His clinical expertise encompasses Laryngeal Nerve Damage, Recurrent Respiratory Papillomatosis, Vocal Cord Dysfunction, Laryngectomy, and Gastrostomy. Dr. Best is board certified in Head And Neck Surgery.
NuVasive Clinical Services Monitoring Inc
Liliana Robles is a Neurologist practicing medicine in Columbia, Maryland. Dr. Robles is rated as an Experienced provider by MediFind in the treatment of RASopathies. She is also highly rated in 8 other conditions, according to our data. Her clinical expertise encompasses Cervical Myelopathy, Dysembryoplastic Neuroepithelial Tumors (DNET), Brain Stem Cancer, and Hemangioblastoma. Dr. Robles is board certified in Clinical Neurophysiology, American Board Of Psychiatry And Neurology and American Board Of Psychiatry And Neurology Neurology.
Union Hospital Of Cecil County
Madeeha Ghaffar is a Nephrologist practicing medicine in Elkton, Maryland. Dr. Ghaffar is rated as an Experienced provider by MediFind in the treatment of RASopathies. She is also highly rated in 3 other conditions, according to our data. Her clinical expertise encompasses Low Potassium Level, Gitelman Syndrome, Low Sodium Level, Ureteroscopy, and Bone Marrow Aspiration.
Johns Hopkins Outpatient Center
Dr. Sara Mixter is Assistant Professor of Medicine and Pediatrics at the Johns Hopkins University School of Medicine. Her areas of clinical expertise are internal medicine, pediatrics, and primary care for adults with developmental disabilities and other complex childhood-onset conditions. She is the director of the Hopkins PACT (Pediatric-informed Adult Care and Transition) Clinic. Dr. Mixter is also the medical director of the Pediatric Complex Care Collaborative (PC3) for the Johns Hopkins Children’s Center. Dr. Mixter received her A.B. from Harvard College. She earned her M.D. from Harvard Medical School and M.P.H. from the Harvard School of Public Health. She completed her residency at Johns Hopkins as part of the inaugural group of trainees in the Urban Health Combined Internal Medicine-Pediatrics Residency Program. Her research interests include transitions of care for adolescents with special healthcare needs and education for residents and medical students, especially in primary care and complex care. Dr. Mixter has served as the Assistant Chief of Service for the Longcope firm of the Osler Medical Housestaff Training Program (2015-16), as well as Assistant Program Director for Ambulatory Education (2014-15). Dr. Mixter is rated as an Experienced provider by MediFind in the treatment of RASopathies. She is also highly rated in 1 other condition, according to our data. Her clinical expertise encompasses Cerebral Palsy, Gastroparesis, Orbital Cellulitis, and Sickle Cell Disease. Dr. Mixter is board certified in American Board Of Pediatrics and American Board Of Internal Medicine.
The Johns Hopkins Hospital
Dr. Ahlawat earned a Bachelor of Arts with magna cum laude at New York University. She completed both her Medical Degree as well as residency training in diagnostic radiology at Rutgers University’s Robert Wood Johnson Medical School in New Brunswick, NJ. Dr. Ahlawat completed her Pediatric Radiology Fellowship at the Children’s National Medical Center in Washington, DC and went on to Johns Hopkins University in Baltimore, MD to do a Fellowship in musculoskeletal radiology. After completion of her fellowship, Dr. Ahlawat joined as faculty in the Diagnostic Division of the department of Radiology at the Johns Hopkins University. Currently, she is an Assistant Professor in the Johns Hopkins University Department of Radiology and Radiological Science. Dr. Ahlawat’s expertise is Diagnostic Radiology with additional training in pediatric and musculoskeletal radiology. Dr. Ahlawat specializes in high resolution magnetic resonance (MR) imaging of peripheral nerves, specifically detection and characterization of peripheral nerve injury; MR imaging of peripheral nerve tumors and peripheral nerve tumor syndromes; whole body MR imaging in the setting of peripheral nerve tumor syndromes; and advanced MR techniques such as quantitative diffusion weighted imaging and apparent diffusion coefficient mapping in characterization of bone and soft tissue tumors. Dr. Shivani Ahlawat also serves as the Director of the Musculoskeletal Fellowship Program. Dr. Ahlawat is rated as an Experienced provider by MediFind in the treatment of RASopathies. She is also highly rated in 10 other conditions, according to our data. Her clinical expertise encompasses Schwannomatosis, Neurofibromatosis, Neurofibromatosis Type 1 (NF1), and Undifferentiated Pleomorphic Sarcoma. Dr. Ahlawat is board certified in American Board Of Radiology.
Jie Chen is a Holistic Medicine provider practicing medicine in Silver Spring, Maryland. Ms. Chen is rated as an Experienced provider by MediFind in the treatment of RASopathies. She is also highly rated in 22 other conditions, according to our data. Her clinical expertise encompasses Microsporidiosis, Pancreatic Ductal Adenocarcinoma, Gallbladder Disease, Endoscopy, and Osteotomy. Ms. Chen is currently accepting new patients.
Rubenstein Child Health Building
Dr. Janet L. Crane is an Associate Professor of Pediatrics at the Johns Hopkins University School of Medicine. Dr. Crane is the Director of the Pediatric Bone Health Program, which focuses on the care of children with rare metabolic bone diseases and osteoporosis/skeletal fragility syndromes. Dr. Crane received her bachelor’s degree in nutritional science from the University of Missouri. She completed her medical degree at the University of Maryland-Baltimore, residency in pediatrics at Children's Mercy Hospital and Clinics in Kansas City, Missouri and fellowship in pediatric endocrinology at Johns Hopkins University in 2013. Dr. Crane is a faculty member of the Center for Musculoskeletal Research. Her research is focused on bone modeling and remodeling factors that result in proper bone growth and strength. The goal of her studies is to identify diagnostic markers and therapeutic targets to enhance bone strength in children who have recurrent fractures. Dr. Crane also participates in industry sponosored clinical studies to investigate the safety and efficacy of medications for metabolic bone disease and skeletal fragility. Dr. Crane is rated as an Experienced provider by MediFind in the treatment of RASopathies. Her clinical expertise encompasses Osteogenesis Imperfecta, Juvenile Primary Osteoporosis, Short Stature (Growth Disorders), and Fibrous Dysplasia. Dr. Crane is board certified in American Board Of Pediatrics.
Office
Suresh Patel is a primary care provider, practicing in Internal Medicine in Waldorf, Maryland. Dr. Patel is rated as an Experienced provider by MediFind in the treatment of RASopathies. He is also highly rated in 64 other conditions, according to our data. His clinical expertise encompasses Familial Hypertension, Hypertension, Glucocorticoid-Remediable Aldosteronism, and Multiple Carboxylase Deficiency.
Office
Melissa Pagan is a Pediatrics provider practicing medicine in Baltimore, Maryland. Dr. Pagan is rated as an Experienced provider by MediFind in the treatment of RASopathies. She is also highly rated in 3 other conditions, according to our data. Her clinical expertise encompasses Short Stature (Growth Disorders), Familial Short Stature (FSS), Idiopathic Short Stature (ISS), and Precocious Puberty.
Pacific Neuromonitoring Associates Inc
Evgeny Tsimerinov is a Neurologist practicing medicine in Columbia, Maryland. Dr. Tsimerinov is rated as an Experienced provider by MediFind in the treatment of RASopathies. He is also highly rated in 11 other conditions, according to our data. His clinical expertise encompasses Cervical Myelopathy, Dysembryoplastic Neuroepithelial Tumors (DNET), Invertebral Disc Disease, and Brain Stem Cancer.
Nicole Bright is a Dermatologist practicing medicine in Havre De Grace, Maryland. Dr. Bright is rated as an Experienced provider by MediFind in the treatment of RASopathies. She is also highly rated in 30 other conditions, according to our data. Her clinical expertise encompasses Seborrheic Keratosis, Warts, Actinic Keratosis, and Plaque Psoriasis.
Last Updated: 04/28/2026















