Global Spine Outreach

Transforming Children with Complex Spinal Deformities Around the World!

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Our Board of Directors

Anthony S. Rinella, MD

Anthony S. Rinella, MD

Orthopedic Spine Surgeon

GSO Board President

Dr. Rinella is a board-certified, fellowship-trained spine surgeon. His practice is a referral center for complex adult and pediatric procedures, including scoliosis and revision procedures. He has a special interest in the cervical spine, and minimally invasive procedures. Dr. Rinella is the founder of his private practice, Illinois Spine and Scoliosis Center. Dr. Rinella leads GSO’s missions to Cali, Colombia and Chihuahua, Mexico each year, and participates in other spinal missions around the world. Dr. Rinella received the De La Salle Award from Lewis University for “his exceptional dedication to the children of the world afflicted with spinal deformities, and his tireless humanitarian efforts to ease their suffering and offer them lives of hope.” Dr. Rinella received the Walter P. Blount Humanitarian Award in 2013, the highest humanitarian honor awarded by the Scoliosis Research Society. Dr. Rinella is dedicated to educating medical teams world-wide and does so through his medical missions and international lectures. He has published numerous articles on adult and pediatric scoliosis, cervical and lumbar disc replacements, among other topics.


Krzysztof B. Siemionow, MD

Krzysztof B. Siemionow, MD

Orthopedic Spine Surgeon

Board Secretary

Dr. Siemionow is Chief of spine surgery and Assistant Professor of Orthopaedics and Neurosurgery at the University of Illinois in Chicago. Dr. Siemionow has completed fellowships in Spine Surgery and he specializes in the surgical management of spinal conditions affecting the neck, spine, and back in adults, children, and adolescents. Dr. Siemionow leads the GSO spine outreach program in Poland where he performs surgery on children and adults with spinal deformities. Dr. Siemionow also has participated in spine surgery missions to Uganda, East Africa, where he treats both children and adults suffering from spinal trauma, scoliosis, tumors, and infection.

Dr. Siemionow is very active academically and has published scientific articles pertaining to spine surgery and basic science spine research. Some of his current research is focused on spinal deformity, the effects of minimally invasive surgical techniques, and complex cervical spine surgery. Dr. Siemionow has been awarded several patents for developing devices and technologies used in nerve and spine surgery and contributes as speaker and/or consultant for a number of medical companies.


Bridget Mortell

Bridget Mortell

Executive Director

Bridget Mortell comes to GSO with a background in neurobiology and electrophysiology that she turned into an early career in Intraoperative Surgical Neuromonitoring. It was within this capacity that she first volunteered on a surgical spine mission with Dr. Rinella as a neuromonitoring technician. While maintaining her leadership position managing in the private sector, her passion for helping others led her to become a dedicated volunteer and mission trip organizer, filling in where needed on outreach trips while immersing herself in the nonprofit world.

Bridget has now participated in over twenty-five medical missions in four different countries while continuing to grow GSO’s mission. She is focused on improving quality, safety and universal access to medical care for children around the world. As the full-time administrator of Global Spine Outreach, Bridget leads marketing and fundraising efforts, ensures effective and efficient day-to-day administration of programs, coordinates goal-setting and metrics to ensure progress and success, while building partnerships and long-term relationships with volunteers, donors, industry representatives, and international mission collaborators.


Judy Beller

Judy Beller

Marketing Consultant

GSO Board Member

Judy Beller is the founder, president, and principal marketing consultant of JPB Medical Marketing Solutions where she functions as an independent consultant responsible for marketing, business development and practice building for multi-specialty physician practices in the greater Chicago metropolitan area. Judy has over 25 years of experience in medical sales, management, marketing, and healthcare consulting. Judy has a passion for customer service with exceptional results. She is a strategic planner, skilled at developing and implementing strategies to achieve both short and long term business objectives. Her skills as an effective communicator with a thorough understanding of identifying and addressing customer needs within the healthcare industry as well as her years of experience in the medical and marketing fields are a great benefit to Global Spine Outreach and provide numerous fundraising and relationship building opportunities.


Chris Bergin, MD

Chris Bergin, MD

Orthopaedic Spine Surgeon

GSO Board Member

Dr. Bergin is an Orthopaedic Spinal Surgeon, who has been in practice since 1999. He specializes in the treatment of complex spinal problems in adults and children. Dr. Bergin’s specialized training included the provision of care at Chicago’s Shriners Hospital and the treatment of complex spinal deformities in children and adults. After Fellowship, Dr. Bergin began his career in the academic setting, and then eventually transitioned into private practice.

Over the years, he has gained expertise and experience treating spinal disorders that range from the very common to the exceptionally rare. Dr. Bergin is an active member of the Scoliosis Research Society. He has been involved in global outreach trips providing care to children with severe spinal deformities in Cali, Colombia and serves as the co-director of GSO’s Colombia program. He actively lectures at meetings and is involved with the education of resident physicians.


Lawrence G. Lenke, MD

Lawrence G. Lenke, MD

Orthopaedic Spine Surgeon

GSO Board Member

Dr. Lenke is the is Professor of Orthopedic Surgery at Columbia University Medical Center College of Physicians and Surgeons, Surgeon-in-Chief at the Spine Hospital at New York-Presbyterian/Allen.

Dr. Lenke is world-renowned for the surgical treatment of pediatric and adult patients with various forms of spinal deformity, with an expertise in the most complex types of cases. He is a leading authority on spinal deformities including scoliosis, kyphosis, flat-back syndrome, high-grade spondylolisthesis, and major truncal imbalances due to various spinal deformities. He is generally regarded as the premier spinal deformity surgeon in the world, having developed the classification system for Adolescent Idiopathic Scoliosis (AIS) to which his name is now attached.

Dr. Lenke was honored with the North American Spine Society’s 2013 Leon Wiltse Award for excellence in leadership and/or clinical research in spine care. He served as President of the Scoliosis Research Society from 2010-2011, the oldest and most prestigious spine society in the world, whose single focus is the advancement of care in patients with spinal deformity and also remains active with the North American Spine Society, the Pediatric Orthopaedic Society of North America, and the American Academy of Orthopedic Surgeons. As a reflection of his preeminent surgical skills, he has hosted over 700 spinal surgeons from around the globe to observe his surgeries in the past 15 years.

Dr. Lenke’s goal has always been to be the top academic spinal deformity surgeon in the world. This internal drive is based on the connection between high-level spinal deformity research and optimizing patient care for those requiring surgery.
Dr. Lenke’s prolific academic career includes writing over 360 published peer-reviewed manuscripts, editing 5 textbooks on Spinal Surgery, writing more than 125 textbook chapters, chairing over 100 Spinal Surgery meetings and having been an invited Visiting Professor domestically and internationally over 100 times. Dr. Lenke has also served as chairman at over 80 spinal surgery courses worldwide leading to innovative treatments for his patients and many others globally. Dr. Lenke can offer the latest and safest techniques for surgical correction of even the most severe spinal deformities.


Jeremy Longhurst

Jeremy Longhurst

Medical Consultant

GSO Board Member

Jeremy Longhurst brings more than 20 years of experience in the field of medical education overseeing the development of various medical education organizations in the US, Europe, and Asia. After working in micro-finance in developing nations in the early 1990s, Jeremy moved back to the medical field, and was the Executive Director of various medical societies and foundations in the US and Europe.

In 2000, Jeremy founded BroadWater, Inc. The company provided medical education services through medical meetings, online, and in print. In 2007, BroadWater was acquired by Vertical Health, LLC a medical media company. Jeremy assumed the role of President, Medical Education for VH, and also sat on its Board of Directors. In May, 2013 Jeremy re-acquired BroadWater, and continues to direct its growth.


Scott Matzelle

Scott Matzelle

Financial Consultant

GSO Board Member

Scott Matzelle is a Managing Director with over 20 years of investment experience. In every year since 2010 (2010-2015) he has been recognized by Barron’s as one of the top 1000 advisors in the country. Prior to rejoining Morgan Stanley, Scott managed client assets at Credit Suisse Private Banking. Scott has dedicated his career to managing the wealth of ultra high net worth individuals and families. With an exclusive focus on families of significant wealth, his team works with approximately 50 families ranging from $20 million to $200 million in relationship size and several Forbes 400 families whose net worth exceeds $1 billion.


John Mikulski

John Mikulski

JMI President

GSO Board Member

John Mikulski is a Business Owner/Importer with over 30 years of business experience focusing on strong, productive relationships. He has a keen insight for creating connections and orchestrating partnerships. John has a thorough knowledge of importing and conducting business in a global economy. His work ethic and energy fills an important role on the GSO board. He works tirelessly to create alliances between private corporations and Global Spine Outreach. His understanding of diverse business transactions allows him to help both groups to realize their objectives and create valuable relationships.


Scott Matzelle

Greg Mundis, Jr., MD

Orthopedic Spine Surgeon

GSO Board Member

Dr. Mundis specializes in spinal deformities of the cervical, thoracic, and lumbar spine for pediatric and adult patients. These conditions include scoliosis, kyphosis, and sagittal plane deformities. He also has special interest in failed back surgery, helping those who have not seen the relief from their spine interventions and has extensive training in both minimally invasive spine surgery as well traditional reconstructive methods.

Dr. Mundis is heavily involved in research and education. He currently is the co-director of the San Diego Spine Fellowships, which trains two new spine surgeons every year. In addition, he is very active in presenting his research and educating other surgeons in minimally invasive spine surgery and advanced surgical techniques at national and international meetings every year. His research is focused on minimally invasive reconstruction for scoliosis and the treatment of children with severe deformities. He is a member of the International Spine Study Group (ISSG), the largest multicenter study group, dedicated to prospective research relating to adults with spinal deformities.

Dr. Mundis is particularly passionate about his efforts in global outreach. Dr. Mundis takes numerous trips every year to underserved areas around the world. He has the opportunity to operate on children who otherwise would not have access to modern spine care, while also educating the national surgeons to make these surgeries more sustainable over time. Dr. Mundis is frequently joined by his wife and family on these trips as testament to their dedication to serving their community both locally and internationally. Dr. Mundis believes strongly that his patients are an extension of his family. As a father of four children, and the son of a missionary family, he believes that every encounter matters and that all patients deserve to have their story heard.