Staff and Board
Children’s Surgery International’s staff and Board of Directors comprises individuals who represent an array of sectors from medicine to business. Such variety in expertise helps CSI maintain its versatility as an organization and allows us to consider various aspects of our growth and development.
Megan Sparks is an accomplished leader with extensive experience in health care access, rehabilitation, social services and nonprofit management. Megan lives in Minneapolis with her husband and two children. As the mother of a child with special needs, Megan understands firsthand the need for access to essential and life-changing medical care. She joined CSI in 2016 and has traveled with surgical teams to Ethiopia and Mexico.
David Tetzlaff, MD
CSI Medical Director
Abbott Northwestern Hospital
Dr. David Tetzlaff joined CSI’s leadership team as medical director in 2015. Dave is a board certified hospitalist in internal medicine and pediatrics and has been involved with CSI since 2005. He has served as lead physician on numerous site visits and medical missions, and his energy, knowledge and people skills make him a favorite with CSI volunteers. When David is not at the hospital or volunteering for CSI, he enjoys cooking and spending time with his family.
Siva Chinnadurai, MD, MPH
CSI Board Chair
Pediatric Otolaryngology and Facial Plastic Surgery, Children’s Minnesota
Dr. Siva Chinnadurai is a pediatric otolaryngologist and facial plastic surgeon at Children’s Minnesota and the Board Chair of CSI. He is Associate Professor of Otolaryngology-Head and Neck Surgery at the University of Minnesota, as well as Scientific Director of ENT, Medical Director of the Aerodigestive and Ear Shape Programs and Surgical Director of the Vascular Anomalies Program at Children’s Minnesota. His clinical practice focuses on pediatric facial reconstruction, microtia and vascular anomalies, management of head and neck tumors and complex airway reconstruction. His research focuses on healthcare disparities and how the intersection of medicine and technology can be leveraged to reduce global health inequity. Siva joined the board in 2017 and has traveled with CSI to Ethiopia, Tanzania and Vietnam.
CSI Board Vice-Chair
Amy Fischer has more than 25 years of experience as an editor and copywriter, from working at newspapers in Kansas, Missouri and New York, to her current role as an editor/copywriter for Infinity Direct in Plymouth, MN. She has been a volunteer for CSI since 2014 and joined the board in 2017. She’s traveled with CSI to Ethiopia and Liberia. Amy and her husband live in Minnetonka and have three adult sons.
CSI Board Treasurer
Peter Falker is president of FalkerInvestments Inc., a registered investment advisor providing investment management and financial consulting services. He has a B.A. in economics from the University of St. Thomas and earned the right to use the Chartered Financial Analyst (CFA) designation. Peter joined the CSI board in 2019 and currently lives in Safety Harbor, FL, with his wife and two children.
CSI Board Secretary
Dorsey & Whitney LLP
Neal Peterson is a partner at the international law firm of Dorsey & Whitney LLP where he is cochair of the firm’s health law practice group. He and his wife, Dr. Deanna Thompson, have two adult children and live in Saint Paul. Neal has attended many CSI galas, and the stories he heard at them inspired him to find a way to get more involved. He joined the CSI board in 2017.
Dody Barr, RN
NICU, Children’s Minnesota
Dody Barr has been a NICU nurse at Children’s Minnesota in Minneapolis for more than 30 years. She has volunteered with CSI for more than 10 years, working in all nonsurgical areas and education. Dody lives in Minneapolis with her husband and has two grown sons. She has traveled extensively with CSI, most recently on surgical trips to Liberia and Ethiopia, and joined the board in 2020.
Jason DeShaw, CTP
Jason DeShaw is a vice president of operations at Trimble in the transportation sector. Jason has more than 20 years of experience working with companies focused on improving processes via software solutions. He lives in Shakopee, MN, with his wife and son and joined the CSI board in 2019.
John Erlandson, CRNA, APRN
John Erlandson has been practicing nurse anesthesia in the Minneapolis and Saint Paul area for 25 years, caring for patients ranging from newborns to the elderly. He has served on CSI surgical teams traveling to Liberia, Ethiopia and Tanzania, alongside his wife, Amy, a neonatal ICU nurse. They reside in the Minneapolis area and enjoy spending as much time as possible outdoors and traveling around the United States to visit their four adult children. John joined the CSI board in 2021.
Melanie McCall has more than 30 years of experience in communications and marketing leadership roles. Her most meaningful professional and volunteer work has been for nonprofit organizations, including the Saint Paul Chamber Orchestra, the Minneapolis Pops Orchestra, TakeAction MN and Westminster Presbyterian Church. She and her husband, Dr. Dan Sampson, live in Minneapolis and have two adult children. Melanie joined the CSI board in 2015 and has traveled with surgical teams to Liberia, Mexico and Ethiopia.
Karen Resch, MD
Pediatric Emergency Medicine, Children’s Minnesota
Dr. Karen Resch is a pediatric emergency physician with Children’s Minnesota. She is board certified in both pediatrics and pediatric emergency medicine. She has served on CSI medical teams in Ghana, Haiti and Mexico. Karen enjoys staying active, raising service dogs for the sight impaired and spending time with her two grown daughters. When she’s not traveling, she resides in Minneapolis. Karen joined the board in 2021.
Brianne Roby, MD
Pediatric Otolaryngology and Facial Plastic Surgery, Children’s Minnesota
Brianne Roby is on staff at the Children’s Minnesota ENT and Facial Plastic Surgery Clinic and the Children’s Minnesota Craniofacial Clinic. She is director of the ENT and Plastic Surgery Fellowship at Children’s Minnesota and the University of Minnesota. Her interests include all aspects of pediatric otolaryngology and facial plastic surgery, including cleft repair. She joined the CSI board in 2017 and has traveled with surgical teams to Liberia and Mexico.
Zinda Schaefer has worked in online marketing for over 20 years and recently retired from Nina Hale, Inc. in Minneapolis. She is passionate about children’s health. Zinda is a longtime supporter of CSI and joined the board in 2018. She’s traveled with CSI to Mexico and Tanzania.
Linda Sedgwick, RN
Pediatric Nursing and Community Building
Linda Sedgwick is experienced in pediatric health care, including outpatient primary care as a pediatric nurse practitioner, home care, inpatient care and research. Linda has been a volunteer for CSI since 2011, joining teams to Bangladesh, Ethiopia, Liberia and Vietnam. She joined the CSI board in 2013. Linda and her family live in Minnetonka, MN.
Todd Stinson has more than 25 years of corporate finance experience and is currently a senior finance director at Medtronic, supporting operations for the neurovascular, cerebrospinal fluid management and ENT businesses. Todd’s passion for children’s health has been bolstered by his experience as a parent of a childhood cancer survivor. He lives in Minneapolis with his wife and two children. Todd joined the CSI board in 2020.
David Vandersteen, MD
Pediatric Urology Surgery, Pediatric Surgical Associates, Ltd.
Dr. David Vandersteen provides surgical care for infants and children with urologic problems, placing special emphasis on family-centered care. Roughly 30% of his practice is dedicated to the care of complex anatomic and urologic problems related to spina bifida, neurogenic bladder and complications of bladder exstrophy. David serves as Director of the Extramural Pediatric Urology Residency Program at Mayo Clinic and is the Director of Urology for the Spina Bifida Programs at Gillette Children’s and Essentia Health. He has served on CSI surgical teams traveling to Liberia and Tanzania and joined the board in 2021.
Norie Wilson, RN, PHN
Community-University Health Care Center
Norie Wilson is a nurse and clinical quality analyst at the University of Minnesota, Community-University Health Care Center. Norie joined the CSI board in 2012 and has been traveling with CSI for more than a decade. She’s been on surgical trips to Bangladesh, Ethiopia, Haiti, Mexico, Peru, Tanzania and Tunisia. Norie lives with her family in Minneapolis.
James Zimmerman is director of global sourcing at Target with more than 20 years of experience in inventory planning, merchandising and sourcing. He joined the board in 2020 and has traveled with CSI to Ethiopia.