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College of
Health Sciences

Thomas Challman

Medical Director, Geisinger Autism & Developmental Medicine Institute 
Fellow, American Academy of Pediatrics 


Autism & Developmental Medicine Institute
Geisinger-Bucknell Center
120 Hamm Drive, Suite 2A
Lewisburg, PA 17837
Autism & Developmental Medicine - Forty Fort
190 Welles St Suite 128
Forty Fort, PA 18704
Autism & Developmental Medicine - Grays Woods
132 Abigail Lane
Port Matilda, PA 16870
Autism & Developmental Medicine - Pottsville
529 Terry Reiley Way
Pottsville, PA 17901
Autism & Developmental Medicine - Silver Creek Center Mechanicsburg
335 Lambs Gap Rd
Mechanicsburg, PA 17050

Thomas D Challman, MD

Research Interests

Areas of research interest include etiologic factors in autism spectrum disorders and intellectual disability, including specific genetic subgroups; psychopharmacology; autism screening, assessment, and treatment; repetitive behaviors in neurodevelopmental disorders; functional neuroimaging and neurophysiologic measurements in developmental disabilities. 

Recent Publications

  • Moreno-De-Luca A, Evans DW, Hanson E, Bernier R, Goin-Kochel RP, Myers SM, Challman TD, Moreno-De-Luca D, Slane MM, Hare AE, Chung WK, Spiro JE, Faucett WA, Martin CL, and Ledbetter DH. (2014, Dec.). The Role of Parental Cognitive, Behavioral, and Motor Profiles in Clinical Variability in Individuals With Chromosome 16p11.2 Deletions. JAMA Psychiatry , Epub ahead of print. Full Text
  • Moreno-De-Luca A, Myers SM, Challman TD, Moreno-De-Luca D, Evans DW, Ledbetter DH. (2013, April). Developmental brain dysfunction: revival and expansion of old concepts based on new genetic evidence. Lancet Neurology , 12(4):406-14. Full Text
  • Myers SM, Challman TD, Bock GH . (2007, Aug). End-stage renal failure in Smith-Magenis syndrome. American Journal of Medical Genetics , Part A 143A:1922-1924. Full Text
  • Johnson CP, Myers SM, and the Council on Children with Disabilities (Challman TD, contributor). (2007, Nov). Identification and evaluation of children with autism spectrum disorders. Pediatrics , 120(5), 1183-1215. Full Text
  • Myers SM, Johnson CP, and the Council on Children with Disabilities (Challman TD, contributor). (2007, Nov). Management of children with autism spectrum disorders. Pediatrics , 120:1162-1182. Full Text


MD, Georgetown University School of Medicine
Residency:  Mayo Clinic
Fellowship:  Kennedy Krieger Institute/Johns Hopkins School of Medicine
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