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Dr. Mary Callahan completed her undergraduate degree in Biology at The George Washington University in Washington, DC. She went on to attend The George Washington University School of Medicine and graduated in 2004 with her medical degree. She moved to Richmond, VA where she completed her Pediatric Residency, and shortly thereafter, relocated to Fredericksburg, VA to practice outpatient pediatrics. She feels blessed to have had the privilege to accompany many children and families in the community on their health journeys over the last 12 years.

Dr. Callahan has a passion for helping families raise strong, confident, health-conscious children who can be supported to live up to their God-given potential. She also believes that every child needs structure and encouragement from parents who feel supported by their pediatrician. She strives to work with parents and children as a team to build and maintain that support.

Licensed States

Virginia, Kansas (Telehealth Only), Illinois, Florida (Telehealth)

In Network Carriers

Aetna, Tricare Select, UnitedHealthcare


NOTE: This provider does not bill Medicare, Medicare advantage nor Medicaid.

United Healthcare Networks Include: Choice (Plus POS, EPO, HMO, HMO Plus), Navigate & Navigate Plus), Core (EPO, HMO, Choice Plus POS), Charter (HMO, PPO, EPO), NexusACO (RB, NRP, OA, OAP, RP, R, NR, NRB), Select (HMO, HMO Plus), Veteran Affairs, Doctors Plan (EPO, Plus POS, HMO), Select (EPO, Plus POS, Plus HMO), PPO

Services Offered

  • Pediatric health and wellness
  • Convenient care for minor illnesses
  • Vaccination consultation
  • Pediatric behavioral help including depression, anxiety, ADHD
  • Adolescent medicine from a Catholic perspective
  • All general pediatric and adolescent needs


Dr. Callahan sees patients from birth through young adulthood.
*Languages: English