At BBS, we put our patients first.  We are committed to treating our patients with compassion and to providing innovative and sound medical options for the treatment of our patient's neurological conditions.  As a patient of BBS, your health and well-being are important to us.  The neurosurgeons, physiatrists, hospital staff, neurological institute, and other members of our multidisciplinary team work together with one goal in mind - helping you get well. Dr. Wanebo is rated as a Distinguished provider by MediFind in the treatment of Ependymoma. His top areas of expertise are Glioblastoma, Astrocytoma, Brain Tumor, Cerebral Artery Bypass Surgery, and Extracranial-Intracranial Bypass Surgery.

Kelly Braun is a Neurologist in Phoenix, Arizona. Dr. Braun is rated as a Distinguished provider by MediFind in the treatment of Ependymoma. Her top areas of expertise are Glioblastoma, Astrocytoma, Brain Tumor, and Glioma. Dr. Braun is currently accepting new patients.

Lynn Ashby is a Neurologist in Phoenix, Arizona. Dr. Ashby is rated as a Distinguished provider by MediFind in the treatment of Ependymoma. Her top areas of expertise are Glioma, Glioblastoma, Astrocytoma, Stent Placement, and Transmyocardial Revascularization. Dr. Ashby is currently accepting new patients.

Robert Yoo is an Oncologist in Phoenix, Arizona. Dr. Yoo is rated as a Distinguished provider by MediFind in the treatment of Ependymoma. His top areas of expertise are Metastatic Brain Tumor, Oligodendroglioma, Astrocytoma, and Glioma. Dr. Yoo is currently accepting new patients.

William Kennedy is a Radiologist and a Radiation Oncologist in Phoenix, Arizona. Dr. Kennedy has been practicing medicine for over 10 years and is rated as a Distinguished provider by MediFind in the treatment of Ependymoma. His top areas of expertise are Glioblastoma, Astrocytoma, Glioma, and Brain Tumor. Dr. Kennedy is currently accepting new patients.

Peter Nakaji is a Neurosurgery provider in Scottsdale, Arizona. Dr. Nakaji is rated as a Distinguished provider by MediFind in the treatment of Ependymoma. His top areas of expertise are Hydrocephalus, Meningioma, Brain Tumor, Extracranial-Intracranial Bypass Surgery, and Awake Craniotomy. Dr. Nakaji is currently accepting new patients.

Outside of the operating room, I’m passionate about mentoring future neurosurgeons, contributing to spine research, and advancing surgical innovation. When I’m not working, I enjoy exploring the outdoors, spending time with my family, and staying active through hiking and nature photography. I also enjoy connecting with the community and participating in medical outreach and educational initiatives. Dr. Martirosyan is rated as an Experienced provider by MediFind in the treatment of Ependymoma. His top areas of expertise are Spinal Stenosis, Brain Tumor, Herniated Disk, Laminectomy, and Spinal Fusion.

Yoshie Umemura is an Oncologist and a Neurologist in Phoenix, Arizona. Dr. Umemura is rated as a Distinguished provider by MediFind in the treatment of Ependymoma. Her top areas of expertise are Glioma, Astrocytoma, Brain Tumor, and Glioblastoma. Dr. Umemura is currently accepting new patients.

Chi Zhang is a Radiation Oncologist in Scottsdale, Arizona. Dr. Zhang is rated as an Advanced provider by MediFind in the treatment of Ependymoma. His top areas of expertise are Acoustic Neuroma, Schwannoma, EGFR Positive Lung Cancer, and Small Cell Lung Cancer (SCLC). Dr. Zhang is currently accepting new patients.

Dr. Cherington joined Ironwood Cancer &  Research Centers in July 2016 after completing his fellowship in Hematology and Medical Oncology at the Mayo clinic.  An Arizona native, he earned undergraduate degrees in Biology and Spanish at Arizona State University prior to attending the University of Arizona for his medical doctorate.  Dr. Cherington has presented research at ASCO and ASH and authored several research articles. However, what he values most is receiving the Gold Humanism Award, which recognizes him as possessing the personal characteristics that colleagues themselves would look for in a physician for themselves or their family members. Early in his youth, Dr. Cherington developed a passion to fight cancer when a childhood friend was diagnosed with a rare brain tumor.  His friend's cancer was aggressive, and her life was ultimately lost, but her tumor cells were donated to research new therapies. Years later, Dr. Cherington spent time at Barrow Neurological Institute investigating cell lines that most likely included his friend's saved cells. The fire that was ignited as a child was further fueled when Dr. Cherington's step-sister lost her life to cancer as a young adult. Today, in each new patient, Dr. Cherington sees a friend or family member who deserves the utmost compassion and expertise that modern medicine has to offer.Outside of work, Dr. Cherington enjoys hiking, exploring Arizona, sports, and spending time with his three children, his dog, and his beautiful wife.  Together, they are passionate about continually moving toward adopting lifestyle factors to prevent or slow cancer.  Dr. Cherington promotes using healthful lifestyle changes in conjunction with the best cancer treatment modern medicine has to offer to continually work towards a cure. Dr. Cherington is rated as an Advanced provider by MediFind in the treatment of Ependymoma. His top areas of expertise are Oligodendroglioma, Astrocytoma, Gliosarcoma, and Ependymoma.

Outside of medicine, I value spending time with family and friends, and I enjoy being outdoors and traveling. My professional interests lie at the intersection of engineering and surgery, where I focus on developing and refining medical technologies and techniques that enhance safety, precision, and efficiency in neurosurgical care. Dr. Theodore is rated as an Advanced provider by MediFind in the treatment of Ependymoma. His top areas of expertise are Tethered Cord Syndrome, Spinal Tumor, Spinal Stenosis, Laminectomy, and Spinal Fusion.

My mission, along with the Dignity Health Medical Group, is to focus on innovative clinical care and the pursuit of excellence through scholarly activities. This allows me to provide patients with state-of-the-art patient services and exceptional patient. Dr. Diaz is rated as an Advanced provider by MediFind in the treatment of Ependymoma. His top areas of expertise are Posterior Fossa Tumor, Primitive Neuroectodermal Tumor (PNET), Metastatic Brain Tumor, Dysembryoplastic Neuroepithelial Tumors (DNET), and Rhizotomy.

Dr. Little specializes in treating brain tumors (e.g., meningioma, glioma, etc) and pituitary tumors (e.g. acromegaly, Cushings disease, pituitary adenoma), trigeminal neuralgia, and Chiari malformation. He is the Surgical Director of the Barrow Pituitary Center and the Director of the Barrow Skull Base Program. He works with an experienced team of doctors and nurses to provide you with a treatment plan tailored for your concerns. He is dedicated to providing exceptional customer service. When selecting a neurosurgeon, experience matters; Dr. Little performs more pituitary surgery than any surgeon in the Southwest. Dr. Little believes in patient education and empowering his patients to be partners in directing their treatment. Dr. Little emphasizes minimally invasive surgical techniques whenever possible.Dr. Little also directs an impactful clinical research program that is laser-focused on helping patients and developing new treatments for brain tumors. He has received numerous awards for his research.At BBS, we put our patients first.  We are committed to treating our patients with compassion and to providing innovative and sound medical options for the treatment of our patient's neurological conditions.  As a patient of BBS, your health and well-being are important to us.  The neurosurgeons, physiatrists, hospital staff, neurological institute, and other members of our multidisciplinary team work together with one goal in mind - helping you get well. Dr. Little is rated as an Advanced provider by MediFind in the treatment of Ependymoma. His top areas of expertise are Pituitary Tumor, Hypothalamic Tumor, Brain Tumor, Endoscopic Transnasal Transsphenoidal Surgery, and Balloon Sinuplasty.

My mission, along with the Dignity Health Medical Group, is to focus on innovative clinical care and the pursuit of excellence through scholarly activities. This allows me to provide patients with state-of-the-art patient services and exceptional patient experiences. Dr. Barani is rated as an Advanced provider by MediFind in the treatment of Ependymoma. His top areas of expertise are Meningioma, Glioblastoma, Astrocytoma, Brain Tumor, and Gamma Knife Radiosurgery.

Amir Azadi is an Oncologist and a Neurologist in Phoenix, Arizona. Dr. Azadi is rated as a Distinguished provider by MediFind in the treatment of Ependymoma. His top areas of expertise are Gliosarcoma, Glioblastoma, Astrocytoma, and Embryonal Tumor with Multilayered Rosettes.

Areas of expertise: Craniosynostosis, Hydrocephalus, Brain and Spine Tumors, Tethered Cord, Myelomeningocele and Chiari Malformations. Dr. Bristol is rated as an Experienced provider by MediFind in the treatment of Ependymoma. Her top areas of expertise are Craniosynostosis, Baller-Gerold Syndrome, Metopic Ridge, and Lambdoid Synostosis.

Dr. Kresl is a nationally recognized expert in stereotactic radiosurgery and is frequently an invited lecturer at seminars throughout the world. Through his participation in Clinical Oncology Treatment Protocols, he offers the newest and most advanced forms of treatment for tumors of all disease sites. An executive board member for the CyberKnife Society, he has published extensively on radiosurgery. He is the current Medical Director of Banner Good Samaritan Medical Center and oversees their Department of Radiation Oncology as well. He was the Assistant Director for the Center for Thoracic Disease at St. Joseph's Hospital & Medical Center and Barrow Neurological Institute in Phoenix until 2008. Dr. Kresl completed advanced medical educational and research training in the field of oncology as one of five National Institute of Health (NIH) supported combined MD/PhD Fellows in Graduate Medical Science training in Molecular and Immunological Tumor Cell Biology. He received his MD and PhD from Northwestern University Medical School in Chicago and completed a comprehensive Radiation Oncology training program at the Mayo Clinic,Rochester, MN. Dr. Kresl has also completed advanced Clinical Radiation Oncology training in the field of Brachytherapy, GammaKnife™Stereotactic Radiosurgery and CyberKnife® Stereotactic Radiosurgery. Dr. Kresl is Board Certified by the American Board of Radiology in Radiation Oncology. A distinguished fellow of the American College of Cancer Specialists,he is included in the Best Doctors in America 2011-2012 and was named among America's Top Oncologists 2010 by the Consumer's Research Council of America.To help people achieve health for life. Dr. Kresl is rated as an Experienced provider by MediFind in the treatment of Ependymoma. His top areas of expertise are Acoustic Neuroma, Prostate Cancer, Familial Prostate Cancer, and Pleuropulmonary Blastoma.

I enjoy spending time with friends and family. Dr. Stidd is rated as an Experienced provider by MediFind in the treatment of Ependymoma. His top areas of expertise are Apoplexy, Subdural Hematoma, Brain Aneurysm, Stent Placement, and Transmyocardial Revascularization.

I enjoy ice hockey, boating, and hiking. When not working, I enjoy spending time with my sons and family. Dr. Erickson is rated as an Experienced provider by MediFind in the treatment of Ependymoma. His top areas of expertise are Lung Adenocarcinoma, Squamous Cell Lung Carcinoma, Small Cell Lung Cancer (SCLC), ALK-Positive Non-Small Cell Lung Cancer, and Bone Marrow Aspiration.

My clinical interests include the treatment of complex spine surgery, minimally invasive spine surgery, deformity corrections, spine oncology. Dr. Prim is rated as an Experienced provider by MediFind in the treatment of Ependymoma. His top areas of expertise are Meningocele, Spinal Tumor, Spinal Stenosis, Spinal Fusion, and Microdiscectomy.