Her career has included work in public health, pediatrics, academic work and public outreach.
North Carolina Department of Health and Human Services
Mattson joined NC DHHS in 2005 as the State Pediatric Medical Consultant within the Division of Public Health.
In 2021, she served as the Interim NC Title V CYSHCN State Director.
In 2022, she was promoted to Senior Medical Director in the Division of Child and Family Well-Being. Her responsibilities expanded to include oversight of multidisciplinary programs such as the Early Intervention Program (Part C) and DCFW disaster preparedness with and response with NCDHS and increased collaboration with the Special Supplemental Nutrition Program for Women, Infants and Children, and the Supplemental Nutrition Assistance Program (SNAP).
In 2025, she became the Early Intervention Medical Director and part of the NC Infant Toddler Program. She is in the process of creating a state medical team to support Children’s Developmental Services Agencies across the state.
Mattson is ABMS certified by the American Board of Pediatrics and has been licensed to practice in multiple states. She volunteers to provide pediatric care at a child health clinic operated by Wake County’s Health and Human Services. Over her career, she has practiced in a variety of settings, including the Indian Health Service in New Mexico, private practices, military bases, and other county health departments in North Carolina.
Media and public outreach
Mattson has appeared in news articles, educational content, and been interviewed on the radio.
Leadership and advisory roles
American Academy of Pediatrics, Council on Community Pediatrics (COCP): Executive Committee Member (2020–present) and current Chair-Elect; contributor to national policies and reports
North Carolina Medical Society Foundation Board of Trustees, President (2018-2021)
American Academy of Pediatrics Committee on Psychosocial Aspects of Child and Family Health: Appointed Member (2012–2018); contributor to national policies and reports
Mattson has an H-index of 21 with over 7300 citations. She has also written chapters in several books.
A few of her authored texts include:
Mattson GL, Kuo DZ; Committee on Psychosocial Aspects of Child and Family Health; Council on Children with Disabilities. “Psychosocial risk and protective factors in children and youth with special health care needs and their families.” Pediatrics. 2019;143(1):e20183171. doi:10.1542/peds.2018‑3171
Earls M, Yogman M, Mattson G, Rafferty J; Committee on Psychosocial Aspects of Child and Family Health. Policy statement: “Incorporating recognition and management of perinatal depression and postpartum depression into pediatric practice.” Pediatrics. 2019;143(1):e20183259. doi:10.1542/peds.2018‑3259
Bruener C, Mattson G; Committee on Psychosocial Aspects of Child and Family Health; Committee on Adolescent Medicine. “Sexuality education for children and adolescents.” Pediatrics. 2016;138(2):e20161348. doi:10.1542/peds.2016‑1348
Mattson GL. “How Does the Affordable Care Act Support Children at Risk For or With Diabetes?” North Carolina Medical Journal. 2011;72(5):379–382.
Mattson G. “Sidebar: A Rare Indication: Immunization Exemptions in North Carolina.” North Carolina Medical Journal. 2021;82(2):135–136.
Remley R, Mattson G. “Shaping the next generation of providers.” In: Michener JL, Castrucci BC, Bradley DW, Hunter EL, Thomas CW, Patterson C, Corcoran E, editors. The Practical Playbook II: Building Multisector Partnerships That Work. New York: Oxford University Press; 2019. pp.457–464.