Sara Park, MD, FAAP
Dr. Park received her B.A. from the University of Chicago and her M.D. from the University of Chicago, Pritzker School of Medicine. She completed her residency at the Phoenix Children’s Hospital & Maricopa Medical Center Pediatric Residency Program in 1995.
She practiced pediatrics in private practice as well as in the academic setting in Arizona. She taught clinical pediatrics to students from the University of Arizona, as well as Residents at the Phoenix Children’s Hospital/Maricopa Medical Center Pediatric Residency Program at Maricopa Integrated Health System (MIHS), now known as Valleywise Health. Her special interests include underserved and vulnerable populations and she helped implement the Pediatric Refugee Program at Valleywise Health. Dr. Park is also a Clinical Assistant Professor at the University of Arizona, Department of Child Health.
Dr. Park joined the Department of Child Safety Comprehensive Health Plan (DCS CHP) in October of 2015. DCS CHP is the Medicaid Health Plan for children in out-of-home care in Arizona; it is also part of the Department of Child Safety (DCS). Her current position as Chief Medical Officer at DCS CHP allows her to remain in the patient care realm with evaluation of services provided to the members, but also affords her the opportunity to advocate for children on a system level. She has taken up this cause with enthusiasm, by taking the opportunity to address the care of children in out-of-home care internally with DCS, and externally with the Medical community, Behavioral Health System, the Juvenile Justice System, the Division of Developmental Disabilities, and community stakeholders.
Jodi Carter, MD, FAAP
Dr. Jodi P. Carter is the Department Chair of Pediatrics for District Medical Group and Valleywise Health Medical Center. Dr. Carter is also a pediatric hospitalist and outpatient pediatrician at Valleywise Health Medical Center. After growing up in Phoenix, Arizona, Dr. Carter earned a Bachelor of Arts degree from Georgetown University in Washington D. C. She returned to Arizona for medical school and earned her medical degree from the University of Arizona. She then completed a pediatric internship and residency at Dartmouth Hitchcock Medical Center in Lebanon, New Hampshire, in 2003. Dr. Carter joined the Pediatric Hospitalist Division at Phoenix Children’s Hospital in 2007 and worked at Phoenix Children’s Hospital from 2007 – 2021. While at Phoenix Children’s, she held many different administrative roles including: Medical Director of Utilization Review, Chief Medical Officer of the Phoenix Children’s Care Network, Chief Clinical Integration Officer, and Section Chief Community Based Ambulatory Pediatrics. Dr. Carter has been a member of the Arizona Chapter of the American Academy of Pediatrics (AzAAP) since moving back to Arizona in 2003. Dr. Carter looks forward to working with AzAAP to continue its mission to improve the health of all Arizona children while supporting the pediatric professionals who care for these children.
Jon McGreevy, MD, FAAP
Dr. McGreevy, like many Arizonans, is not native to the state but has considered it home since his family moved to the Phoenix area in 1989. After attending the University of Arizona, he attended Creighton University School of Medicine, Omaha, Nebraska. He went on to complete pediatric residency at Children’s Medical Center Dallas / University of Texas Southwestern. He spent the next two years as a pediatric hospitalist working for Washington University in St. Louis School of Medicine/St. Louis Children’s Hospital and stayed there to complete his fellowship in pediatric emergency medicine. During fellowship, he was enrolled in an NIH training grant to develop physician scientists and additionally completed a Master’s in Science and Public Healthfrom St. Louis University School of Public Health. Upon completion of training, he moved to Phoenix and has been with Phoenix Children’s since 2013. He has spent most of his career in medical education leadership including time as the program director of the pediatric emergency medicine fellowship and program director of the pediatric residency at Phoenix Children’s. His interest in pediatric readiness and preparedness led to his engagement with AZ AAP and he now serves at the division chief of pediatric emergency medicine at Phoenix Children’s.
Sarah Bannister, DO, FAAP
Dr. Sarah Bannister is a near-native Arizonian who graduated from the University of Arizona (Go Wildcats!) then completed medical school at Touro University Nevada and her Pediatric Residency at St. Joseph's Hospital and Medical Center in Phoenix. She served as a Chief Resident after the pediatric residency program at St. Joseph's was combined with Phoenix Children's Hospital. Dr. Bannister is a Pediatric Hospitalist at Banner Children's at Banner Desert Medical Center. She served as the Lead Physician for the Pediatric Hospitalists at Banner Children's at Desert, Department Chair of Pediatric Medicine, and multiple committees within Banner hospitals and at the Banner system from 2012-2020. Dr. Bannister transitioned to an administrative role with utilization management and now serves as the Chief Medical Officer at Banner Casa Grande Medical Center. She is passionate about professional excellence, quality, safety, and high-quality evidence-based care for pediatric patients. Dr. Bannister continues to advocate for quality improvement, professional development, and healthcare access for all children in Arizona through AzAAP. During her spare time, Dr. Bannister enjoys baking and spending time with her active family.
Christopher Brown, CPA
Chris is the Vice President of Finance at GPS Insight. Previously, he served as Controller for several private and public companies. He began his career in public accounting, spending seven years in audit and assurance, including as an Assurance Manager at PricewaterhouseCoopers and as an Associate at Vicenti, Lloyd & Stutzman, LLP. Chris holds a bachelor’s degree in Accounting from Azusa Pacific University and is a licensed CPA in Arizona.
Rachel Cramton, MD, FAAP
Dr. Rachel Cramton is the Program Director for the Pediatric Residency Program at the University of
Arizona College of Medicine in Tucson.
She attended Temple University School of Medicine in North Philadelphia before completing her
pediatric residency at Hasbro Children's Hospital/Brown University in Providence, Rhode Island. She completed a Chief year at Dartmouth Hitchcock Medical Center in Hanover, New Hampshire before moving to Tucson in 2009 with her family.
At Banner University Medical Center - Tucson, she has multiple clinical roles including pediatric hospital medicine, palliative care and child abuse pediatrics. Academically, Dr. Cramton is involved in the training of medical students, residents and fellows.
Dr. Cramton has been involved nationally with the AAP PediaLink Editorial Board and PediaLink Medical Student Working Group. She is also on the National Advisory Board of the Gold Humanism Honor Society and the Arnold P. Gold Foundation. Locally she is active with the AzAAP Public Health Action Team, Make-A-Wish Foundation, Pima Country Child Fatality Review and Southern Arizona Children’s Advocacy Center. Dr. Cramton believes food is a love language and likes to share that with her husband James and their young adult children (and anyone else nearby!).
AMELIA DECKER, MD, FAAP
Dr. Amelia Decker is an Arizona native, completing both medical school and residency at the University of Arizona after earning her BS in neuroscience at Tulane University in New Orleans, LA. She is a general pediatrician in private practice in Tucson, AZ. Dr Decker holds an appointment as a Clinical Assistant Professor in the University of Arizona Department of Pediatrics and as the Medical Director for the Tanque Verde Unified School District. She currently serves on the AzAAP CME Committee and is a co-founder of both Rare Disease Day Tucson and The MECP2 Duplication Foundation.
CHRISTINE HOLMES, MD, FAAP
Christie P. Holmes, MD, FAAP, is a board-certified pediatrician and a fellow of the American Academy of Pediatrics. Dr. Holmes graduated from the University of Oklahoma on the Dean’s and President’s Honor Roll with a degree in Zoology. She received her medical degree from the University of Oklahoma College of Medicine in June 1994, where she was honored as an Honors Research Scholar. In 1997, she completed her postgraduate Pediatric Medical Residency at Phoenix Children’s Hospital. Post residency Dr. Holmes practiced in Tempe, AZ from 1997-2006. Dr. Holmes then founded Desert Shores Pediatrics in 2006 and the practice has grown to 20 providers and two locations in Gilbert and Chandler. She serves as the President and Medical Director. She is the immediate past Chair of the Board of Managers for Phoenix Children's Care Network and is passionate about vaccines and pediatric practice management. Dr. Holmes has been a Fellow of the American Academy of Pediatrics since 1998 and has served on the AZ AAP Board of Directors since 2024.Dr. Holmes is a resident of Gilbert and outside of work, she enjoys spending time with her family and friends and loves to travel.
Jane A Oski, MD, MPH, FAAP
Why do I want to become a member of the Arizona Chapter of the AAP Board of Directors and what might I bring to the Board? I am on the cusp of my retirement from full-time clinical work serving the children and teens of the Navajo Nation and Hopi Tribe. In my 31 years of work in Kayenta, Tuba City and Flagstaff, one of my greatest joys in pediatrics and public health has derived from advocacy work, whether quiet or loud. I am not ready to leave these years of experience behind me.
I have had the privilege of serving a 6-year term on the Executive Committee of the AAP Committee on Native American Child Health (CONACH) and another 4 years as the Chair of CONACH’s Indigenous Health Special Interest Group. This decade of association with some of the wisest and most dedicated clinicians serving Indigenous children in the U.S. has taught me the importance and power of slow steady pressure for achieving desired ends. As we all know, children’s voices are not directly heard at the ballot box. Those of us with grave concerns for their future need to be their voices. Whether the issue is access to care, the impact of climate change, the threats imposed by vaccine hesitancy and refusal, pediatric workforce, LGBTQ2S+ care or the impact of social media on the mental health of children and teens, it is our job to educate the public and our legislators.
Finally, it is important that the Board of Directors of the Arizona Chapter of the AAP reflects the children of the entire state. Although the majority of our state’s population resides in Maricopa County, children live in many rural and suburban areas of Arizona and they deserve representation. It would be a great honor to be able to speak on behalf of the children and teens from Northern Arizona.
Nathan Price, MD
Nathan Price was born and raised in Tucson, Arizona. He graduated from the University of Arizona College of Medicine-Tucson in 2007 and stayed to complete a Pediatrics residency. He completed a fellowship in Pediatric Infectious Diseases at the University of Alabama at Birmingham. Following fellowship he practiced Pediatric Infectious Diseases at the University of Iowa in Iowa City, IA. When the opportunity came to return to Arizona in 2018 he jumped on it and has never looked back.
Dr. Price loves working at an academic institution. He is passionate about providing good clinical care and teaching others. He dedicates time to students, residents and assisting the community providers. With Dr. Scott Olson he is the AzAAP Infectious Disease and Immunization Co Medical Director and has a monthly podcast answering questions from AzAAP members about pediatric infectious diseases. Dr. Price is particularly interested in congenital syphilis, pediatric coccidioidomycosis and antimicrobial stewardship. He is passionate about dispelling the misinformation about pediatric vaccines.
RONALD SERBIN, MD, FAAP
Dr. Serbin's interest in serving on the Board of Directors of the Arizona Academy of Pediatrics is to advocate for the healthcare of children in Arizona. He has been in the same community group pediatric practice in Phoenix since completing his pediatric residency in 1997. His experience has taught him that the responsibility of a pediatrician involves more than treating patients in the clinic.
His personal pediatric practice has evolved into caring for children with complex and special health care needs. This type of care requires collaboration with providers in the community who care for these children. These providers include the hospital team, subspeciality care, rehabilitation providers, school personnel, and home healthcare. This experience has allowed him to develop relationships and participate in organizations which advocate for children’s health care in the Phoenix community.
The opportunity to serve on the Arizona Academy of Pediatrics Board of Directors allows Dr. Serbin to advocate for pediatric providers, children’s healthcare, and ultimately enhance the needs of the pediatric population in the state of Arizona.
Dawn Sorenson MD, MPH, FAAP
Dr. Dawn Sorenson MD, MPH, FAAP is a pediatrician in practice with Banner Health since 2012. She earned her Bachelor of Science in Health Sciences and Master of Public Health Degrees from the University of Arizona. She completed both medical school and pediatric residency at The University of Arizona College of Medicine-Tucson. After conclusion of her pediatric residency program, she served as Co-Chief Resident for the University of Arizona College of Medicine-Tucson Department of Pediatrics.
Dr. Sorenson has held numerous leadership roles during her career with Banner Health, most recently as physician lead of the Banner Health Center in Maricopa. She serves on multiple committees within Banner Medical Group. She holds an appointment as a Clinical Instructor for the University of Arizona College of Medicine-Phoenix. Additionally, she serves on the AzAAP Developmental Screening Committee.
Dr. Sorenson enjoys spending time with her husband, a public-school teacher and coach, and two children (one of whom is a current UofA Wildcat!). Family activities include watching sports, hiking, and traveling. She and her family volunteer as a foster family for the Arizona Boston Terrier Rescue. She looks forward to advocating for the children of Arizona through service on the AzAAP Board.
ANDREW TERRANELLA, MD, MPH, FAAP
Dr. Terranella is a medical epidemiologist in the Division of Overdose Prevention at the CDC’s National Center for Injury Prevention and Control. His area of research focuses on improving access to treatment for substance use disorders and harm reduction programs in young adults and adolescents as well as serving as subject matter expert for the Division on tribal health. He is also a board-certified pediatrician, is on faculty in the Department of Pediatrics at the University of Arizona-Tucson, and practices general pediatrics and adolescent medicine at El Rio Health in Tucson, Arizona. His clinical practice is centered around addiction medicine and transgender care.
Dr. Terranella received his BA in Biology from Kalamazoo College in Michigan, attended Medical School at the University of Virginia, and received an MPH from Emory University. He trained in Pediatrics at Albert Einstein College of Medicine/Jacobi Hospital in the Bronx, NY in 2007 and completed an Epidemic Intelligence Service Fellowship at the CDC in 2012. Prior to coming to CDC, he served 14 years with Indian Health Service as a pediatrician and health care administrator on the Navajo and Tohono O’odham Nations and most recently as the Chief Medical Officer for the Portland Area Indian Health Service. He currently lives in Tucson, AZ with his wife Julia, son Luciano, and dog Valentino.
JILLIAN WALL, MD, FAAP
Dr. Jillian Wall is a Pediatric Hospitalist at Phoenix Children’s Hospital. She completed her pediatric residency training at the University of California, San Diego, and subsequently pursued fellowship training in Pediatric Hospital Medicine at Dell Children’s Medical Center through The University of Texas at Austin. During fellowship, she earned a Master of Public Health with a concentration in Tobacco Control, reflecting her longstanding commitment to child health advocacy, prevention, and population-level approaches to improving pediatric outcomes.
Since joining Phoenix Children’s Hospital, Dr. Wall has led and contributed to initiatives focused on reducing secondhand smoke exposure in children, advancing family-centered care, and enhancing resident education in the care of children with medical complexity. She previously served as the Arizona AAP E-Cigarette Champion and is currently the Chair of the Child Injury and Fatality Prevention Committee, focused on reducing preventable injury and improving child safety.
Dr. Wall is actively engaged in medical education and leadership as the Pediatric Clerkship Director for the Mayo Clinic Alix School of Medicine and as the Site Director for The University of Arizona College of Medicine. She lives in Phoenix and enjoys exploring Arizona with her husband and two sons.
Marisa Werner, MD, FAAP
Originally from Maryland, Dr. Werner attended the University of Maryland for undergraduate studies, medical school, and pediatric residency. Following a pediatric chief resident year at University of Maryland / Maryland’s Hospital for Children, Dr. Werner moved to Arizona to fill a pediatric position in San Carlos Apache Nation. Since 1994, Dr. Werner has worked in Native American health care systems, both in clinical outpatient and inpatient settings and in various administrative capacities, including periods of time as Clinical Director and as acting Chief Medical Officer. Dr. Werner is currently employed by Tohono O’odham Nation Health Care (TONHC). In that context, Dr. Werner convened the interagency Early Intervention Collaborative Group that re-shaped early intervention services for the Nation's children in ways that improve quality of care and increase congruence with principles of tribal sovereignty. Also in the context of TONHC employment, Dr. Werner chairs the Maternal Child Health Committee, serves actively on the Medical Executive Committee, provides physician leadership for partnerships with Vaccines For Children and Reach Out And Read programs, represents TONHC Pediatrics on the Arizona Department of Health Services Childhood Lead Poisoning Prevention Coalition and the Pima County Child Fatality Review Board, represents the Tucson Area IHS/Tribal/Urban Native American healthcare entities on the RPMS Immunization Advisory Team, and provides pediatric program development support to the Tucson Indian Center Health Services Division. Dr. Werner volunteers as a member of the First Things First Tohono O’odham Nation Regional Partnership Council, filling the health services provider representative position. Marisa has an adult daughter, lives in Tucson, and enjoys outdoor recreation.
Lara Yoblonski, MD
Dr. Yoblonski has worked at Phoenix Childrens Hospital in the Homeless Youth Outreach program and the Center for Resiliency and Wellbeing for the past eleven years. Prior to this she has worked in private practice and in the Maricopa Integrated Health System in the inpatient and outpatient settings. She currently works with homeless youth and families, foster children and youth, and survivors of sex trafficking. Trauma informed care and how to efficiently deliver care to high-risk patients have become areas of interest in the past few years. She has been working with the AzAAP Emotional and Behavioral Health Committee for the past year.
Lauren Valdiviezo
Lauren is a nonprofit executive and Certified Nonprofit Professional with more than 20 years of experience in healthcare, nonprofit, and professional membership associations. She has dedicated her personal and professional career to improving the health, education, and well-being of children and families. Since joining the Arizona Chapter of the American Academy of Pediatrics (AzAAP) in 2011, Lauren has played a key role in strengthening the organization’s impact by advancing advocacy initiatives, expanding high-quality continuing medical education, enhancing member value, and supporting the long-term financial and organizational health of the chapter. Her leadership has contributed to statewide and national recognition, including AzAAP being named Outstanding Chapter of the Year. In December 2025, Lauren was appointed Chief Executive Officer of AzAAP, where she remains deeply committed to supporting pediatric professionals across Arizona and improving care for all children.