Dr. Yaser Badr is Director of SNI. He specializes in brain tumors, brain aneurysms, cerebrovascular
neurosurgery, endovascular surgery, brain AVMs, and complex and minimally invasive spine surgery.
He received his medical degree from Cairo University School of Medicine and completed his residency
at Louisiana State University. He completed fellowship training in neuroendovascular neurosurgery
at St. John Providence Hospital in Detroit, Michigan. He makes it his to goal to provide his patients
with the most advanced brain and spine care using state-of-the-art technology and techniques.
Dr. Badr strives to use his extensive training to provide
excellent care in all aspects of spine and brain diseases.
Ikenna “IK” Nwachuku, MD
Orthopedic Surgeon
Ikenna “IK” Nwachuku, MD
Ikenna “IK” Nwachuku, MD, is a fellowship-trained orthopedic spine surgeon with Sierra Brain and Spine
Institute. He treats a broad spectrum of
spinal conditions, including degenerative disease, spinal stenosis, disc herniations, spinal deformity,
trauma, tumors, infections, and complex revision cases. He also evaluates patients with neck and back
pain, as well as pain, numbness, weakness, and other symptoms affecting the arms and legs.
Dr. Nwachuku earned his medical degree from Loma Linda University School of Medicine and completed his
orthopedic surgery residency at the Keck School of Medicine of USC. He then completed advanced
fellowship training in spine surgery at NYU Langone Health in New York City.
His surgical practice incorporates both traditional and advanced techniques, including minimally invasive
and endoscopic spine surgery, robotic-assisted surgery, advanced navigation, spinal fusion,
and motion-preserving cervical and lumbar disc replacement.
Enrique Gomez, RN, MSN, AGACNP-BC
Nurse Practitioner
Enrique Gomez, RN, MSN, AGACNP-BC
Enrique Gomez is a board-certified nurse practitioner specializing in acute care. He was born and
raised in Los Angeles, California, where he attended nursing school and graduated with his bachelor's
degree at West Coast University in Los Angeles. From there, he specialized in critical care and
worked in various intensive care settings including medical, surgical and trauma, as well as the
pre-hospital setting as a critical care transport nurse. He received his master's degree from the
University of California, Los Angeles and joined Sierra Neuroscience Institute shortly after. In
his free time, he enjoys spending time with his family, riding his motorcycle,
and enjoying the outdoors.
Oliver Rago, MSN, RN, NP, AGACNP-BC, CCRN
Nurse Practitioner
Oliver Rago, MSN, RN, NP, AGACNP-BC, CCRN
Oliver Rago is a board-certified nurse practitioner specializing in adult-gerontology acute care.
He was born and raised in Southern California. He received his Associate’s degree in Nursing from
Mount Saint Mary’s College, his Bachelor’s degree from California State University, Fullerton,
and his Master’s degree from California State University, Long Beach. Oliver worked in critical
care for thirteen years prior to joining Sierra Neuroscience Institute. He also has experience
as a nursing clinical instructor, a critical care transport nurse, and a nurse practitioner
specializing in outpatient neurology. In his free time Oliver enjoys traveling, music festivals,
scotch, and spending time with his wife, Erin, and their two children, Eligh and Vesper.
Anais Yeghyaian, FNP-BC
Nurse Practitioner
Anais Yeghyaian, FNP-BC
Anais Yeghyaian, FNP-BC, is a board-certified Family Nurse Practitioner who earned both her
undergraduate and graduate degrees from West Coast University. She has a genuine passion for caring
for others and believes in building meaningful connections with her patients while providing
compassionate, personalized care. Outside of work, Anais enjoys traveling and exploring new places,
staying active through strength training and Pilates, and spending quality time with her dog, Lulu,
and her family and friends.