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Meet St Joseph's Experts


Amazing Minds – Meet the Experts at St. Joseph’s and Barrow




Michael Lawton, MD
World-Renowned Brain Surgery Expert

Dr. Michael Lawton, President and CEO of Barrow Neurological Institute, is one of the world’s most renowned neurosurgeons. He specializes in the treatment of complex brain malformations including brain aneurysms. Under Dr. Lawton’s leadership, Barrow performs more brain surgeries and trains more neurosurgeons than anywhere in the United States. Dr. Lawton is often sought after by patients and doctors from around the globe to treat the most complex brain disorders.






Holly Shill, MD
Parkinson’s Disease Expert

Dr. Holly Shill is the director of the famed Muhammad Ali Parkinson Center at Barrow Neurological Institute. On the front line of the battle against Parkinson’s disease, the center strives to provide its patients with the same level of care “The Champ” and namesake of the center received during his battle with Parkinson’s disease. It’s credited with delivering the most advanced and latest clinical care, therapies, research trials, support groups, education and exercise classes to improve the quality of life for individuals with the condition. In addition to Dr. Shill’s clinical expertise, she leads a number of research trials including the identification of risk factors for the development and progression of the disease. 





  Javier Cárdenas, MD 
Concussion and Brain Injury Expert


Dr. Javier Cárdenas is one of the nation’s foremost experts on the diagnosis and treatment of concussion and other brain injuries. A sports neurologist, Dr. Cárdenas created the Barrow Concussion and Brain Injury Center which is the nation’s most comprehensive concussion prevention, treatment and education program. Dr. Cárdenas serves on the National Football League’s Head, Neck and Spine Committee, where he advises the NFL on best practices for concussion prevention and management. He also recently created the nation’s first program dedicated to treating homeless domestic violence victims with traumatic brain injury. 






Ross Bremner, MD, PhD 
Lung Disease and Lung Transplant Expert

A leading lung transplant surgeon, Dr. Ross Bremner is one of the nation’s most respected thoracic surgeons. Under Dr. Bremner’s leadership, St. Joseph’s Norton Thoracic Institute has become one of the busiest lung transplant centers in the United States with one-year survival rates that are among the highest in the nation. In addition to lung transplantation, Dr. Bremner specializes in the treatment of lung cancer and other advanced lung and esophageal diseases. 






Nader Sanai, MD
Brain Tumor Expert

Dr. Nader Sanai is part of the medical team at Barrow Neurological Institute which treats more brain tumors than anywhere in the United States. Dr. Sanai leads the Barrow Brain Tumor Research Center that is establishing the institute as an international center for brain tumor clinical trials. Dr. Sanai and his team are pursuing breakthroughs in neuro-oncology by identifying and testing new and revolutionary ideas for diagnosing and treating brain tumors. 






Sandra Indermuhle, MD 
Emergency Medicine and Opiate Addiction Expert

Dr. Sandra Indermuhle is the medical director of the Emergency Department at Dignity Health Chandler Regional Medical Center and is working to curb the nation’s opioid epidemic. Dr. Indermuhle is continually leading projects to help educate members of the community about the dangers of substance use disorders and ways to prevent addiction and its complications. She is also working on a project to obtain real-time peer support in emergency departments for patients who have suffered opiate and other overdoses due to substance abuse.






Michael Waters, MD, PhD
Stroke Expert

Dr. Michael Waters is the director of the Stroke Program at Barrow Neurological Institute. Under Dr. Waters’ leadership, Barrow is working to curb staggering stroke statistics that have revealed stroke patients are not getting fast enough treatment. Barrow recently created a mobile stroke treatment unit that diagnoses and treats stroke patients in the field. The Barrow Emergency Stroke Treatment Unit, which resembles an ambulance, is expected to dramatically speed the process in which strokes are diagnosed and treated, greatly reducing death and long-term disability in stroke victims. Dr. Waters is passionate about educating the public about the signs and symptoms of stroke and is also leading research trials surrounding the genetic mechanisms of stroke.





  Robert Bowser, PhD
ALS and Neuro Research Expert

Dr. Robert Bowser is the Chairman of Neurobiology at Barrow Neurological Institute and is an internationally-recognized leader in ALS research. Dr. Bowser has pioneered efforts to discover and validate biomarkers for ALS and most recently, in partnership with IBM Watson, identified five never before linked genes associated with ALS. These discoveries have given ALS researchers new insights that pave the way for the development of new drug targets and therapies to combat one of the world’s most devastating and deadly diseases. 




    Christina Kwasnica, MD
Neuro Rehabilitation Expert

Dr. Christina Kwasnica is one of the nation’s top experts in physical and neuro rehabilitation. Dr. Kwasnica treats patients with the most serious and complex brain and spinal cord injuries at Barrow Neurological Institute. She helps adult and pediatric patients enhance their quality of life by improving skills and independence through advanced and specialized therapy programs. It is not uncommon to witness a paralyzed patient walk again or a brain injury patient speak again through the help of Dr. Kwasnica and her team of physicians and therapists. 





  Jordan Weinberg, MD 
Trauma Expert

Dr. Jordan Weinberg oversees Phoenix’s busiest Level 1 Trauma Center which leads the city annually in treating the most severely injured trauma patients. St. Joseph’s Trauma Center provides the level of care that can make the difference between life and death. 






Francisco Ponce, MD 
Deep Brain Stimulation Expert

Dr. Francisco Ponce, director of the Barrow Center for Neuromodulation, is exploring an exciting medical frontier to treat neurological conditions through novel treatments including advanced deep brain stimulation (DBS). Dr. Ponce is the nation’s leader in performing this life changing procedure. Typically used to treat Parkinson’s disease, Barrow is using DBS to improve and restore function in patients with a number of neurological conditions including Alzheimer’s disease. 






Juan Uribe, MD
Spine Surgery Expert

Dr. Juan Uribe, Chief of Barrow’s Division of Spinal Disorders, is a world expert in the surgical treatment of spine disorders including scoliosis, spinal trauma, and spinal tumors. He is a pioneer in performing minimally invasive surgical techniques on the spine resulting in less pain and faster recovery for his patients. Patients from around the world come to Barrow for treatment of complex spine conditions that many surgeons deem too complicated to treat. 






Anna Burke, MD
Alzheimer’s Disease Expert

Dr. Anna Burke is a geriatric psychiatrist and Alzheimer’s disease expert at Barrow Neurological Institute. Dr. Burke’s area of expertise includes the treatment of challenging behavioral and psychiatric disturbances that result from neurological conditions such as Alzheimer’s disease. In addition to her clinical work, Dr. Burke is leading numerous Alzheimer’s disease clinical research trials.



To schedule interviews with an expert, please contact one of the following: