Our Practice

Dr. Rafiq

Shahid Rafiq, M.D. is triple board certified in Neurology, Vascular Neurology (Stroke), and Sleep Medicine.

He received his training in Neurology from Seton Hall University, NJ Neuroscience Institute in Edison, NJ. He completed his fellowship in Clinical Neurophysiology at the University of Texas, Health Science Center in San Antonio, TX.

Before coming to United States, he first practiced medicine in Pakistan and South Africa. Such experience provided him with a broad background in treating his patients as a whole in addition to concentrating on his areas of expertise. He also taught for medical schools, and this is the source of his continued interest in education, new interventions, and Neurological research. He is an engaged member of the American Academy of Neurology, American Academy of Sleep Medicine, and American Stroke Association/American Heart Association.

Dr. Rafiq is also the founder and Stroke Director for the Frederick Memorial Hospital (FMH) Stroke Center, which received the maximum five-year accreditation as Frederick County’s only certified Stroke Center. Dr. Rafiq is the only Stroke specialist not only for Frederick County, Maryland, but also for the neighboring communities. He has been recently contracted to provide the EEG services for FMH as well. Needless to say, Dr. Rafiq is an active member of the medical community and can always be found frequenting the halls of the hospital wearing any one of his colorful ties from his famous collection.

For consultation and/or second opinion, please call CNS Frederick 240-566-3130 or CNS Silver Spring 301-363-4370.

Dr. Strayhorn

W. David Strayhorn, M.D. Ph.D., is board certified in Neurology, Epilepsy, and Sleep Medicine.

Dr. Strayhorn completed his Bachelor of Science in Electrical Engineering (cum laude) from Princeton University, New Jersey. He received his MD and PhD (Cell Biology) degrees from Vanderbilt School of Medicine, Nashville, TN. He obtained his Neurology training at Washington University in St. Louis, including internship, residency in Neurology, fellowship in Electroencephalography, Evoked Potentials, and Epilepsy, and fellowship in Sleep Medicine. Dr. Strayhorn continued to practice general Neurology by providing compassionate and state-of-the-art care at St John’s Mercy Hospital prior to moving to Frederick, Maryland in January 2012. He is board-certified in Neurology by the American Board of Psychiatry and Neurology; board-certified in Epilepsy by the American Board of Clinical Neurophysiology with Added Competency in Epilepsy Monitoring; and board certified in Sleep Medicine by the American Board of Psychiatry and Neurology. He has been awarded a letter of recognition from Barnes-Jewish Hospital Division of Emergency Medicine for exceptional clinical service. Dr. Strayhorn specializes in Neurology, with sub specialization in Epilepsy and Sleep Medicine.

For consultation and/or second opinion, please call CNS Frederick 240-566-3130.

Dr. Llanes

Natalia M. Llanes, M.D. is board certified in Neurology & Clinical Neurophysiology.

Dr. Natalia Llanes is a fellowship-trained neurologist with subspecialty expertise in neuromuscular diseases and electromyography (EMG) testing. She specializes in treating patients with peripheral neuropathies, mononeuropathies, radiculopathies, myasthenia gravis, and myopathies. She also evaluates and treats patients with general neurological conditions, including stroke, headaches, dementia and movement disorders.

Dr. Llanes is a graduate of the Georgetown University School of Medicine and completed a fellowship at the National Institutes of Health. During her fellowship, she also treated patients at Walter Reed NationalMilitary Medical Center and Children's National Medical Center.At Walter Reed, she treated active and retired military personnel in the Center’s neuromuscular and peripheral nerve injury clinics.

Dr. Llanes strives to live out the concept of curapersonalis, or “care of the whole person,” an idea that was at the core of her studies at Georgetown. Now, she is excited to bring that approach to Comprehensive Neurology Services.

Dr. Llanes is a native of South Florida and is fluent in both English and Spanish.

For consultation and/or second opinion, please call CNS Frederick 240-566-3130 or CNS Silver Spring 301-363-4370.

Corey Ward, AGPCNP-BC

Corey completed her Bachelors of Science in Nursing (cum laude) at the University of Maryland.

As a nurse, she worked on the Medical Intensive Care Unit at the University of Maryland Medical Center, the Surgical/Neuro Critical Care Unit at Holy Cross Hospital, and a local urgent care.

She returned to the University of Maryland to earn her Masters of Science in the Adult/Gerontological Primary Care Nurse Practitioner program. She is excited to have the opportunity to serve patients in a community that has been her lifelong home.


Dr. Goodman

Stuart J. Goodman, MD, MBA is board certified in Neurology.

Dr. Goodman is a board-certified neurologist with a history of excellent academic credentials in private practice since July 1982. He has resided in Maryland since 1978 and originally hails from New Jersey. Over the years, he has been actively involved in patient care for all neurological conditions, including stroke, epilepsy, migraine headaches, back pain, Alzheimer's disease, Parkinson’s disease, multiple sclerosis and other associated diagnoses.

Dr. Goodman is a graduate of the University of the East RM. Memorial Medical Center in the Philippines and completed an internship at The Brooklyn Hospital, followed by a residency at Georgetown University Hospital. Dr. Goodman is also fellowship-trained from Boston University Hospital in Electroencephalography and Epilepsy.

Dr. Goodman holds an MBA in Business Administration from Auburn University, where he was a member of the Alpha Theta Chi Collegiate Honor Society. He has been recognized with various leadership positions over the years, including President of the Philippine Medical Association, President of the Southern Medical Association, President of Prince George’s County Medical Society, and President of Medical Staff and & Division Chair of Neurology at Southern Maryland Hospital. He has been awarded "Top Washington Physicians in the Field of Neurology" multiple times, and comes highly recommended by patients and physicians alike.

His personal interests include travel, photography, reading and people.


Dr. Martins

Dr. Martins is a board-certified neurologist with a history of serving over twenty-five (25) years as a neurologist in the U.S. Army. In March 2016, he retired as a Colonel in the Medical Corps with recognition for meritorious service. Between postings in Germany, Texas, and North Carolina, he would return home to Walter Reed Medical Center in Washington, D.C., and then Bethesda. Here, he cared for active duty servicemen and women, retirees, and their families with neurological disease. During these tours of duty, Dr. Martins also spent a great deal of time in mentoring residents in the neurology residency program. He has been actively involved and is particularly interested in traumatic brain injury, epilepsy, headache and migraine.

Dr. Martins is a graduate of the Medical School at the Uniformed Services University in Bethesda. He obtained his undergraduate and graduate degrees from the University of Maryland in College Park in Biopsychology and Sensation & Perception. Dr. Martins completed both his Neurology residency and Neurophysiology fellowship at Walter Reed Army Medical Center.