Thomas D. Challman
Distinguished in Autism Spectrum Disorder

Dr. Thomas D. Challman

Pediatrics
Geisinger Health System
Geisinger Lewisburg - Pediatric Neurodevelopment
120 Hamm Drive, 
Lewisburg, PA 
Accepting New Patients

Distinguished in Autism Spectrum Disorder
Geisinger Health System
Geisinger Lewisburg - Pediatric Neurodevelopment
120 Hamm Drive, 
Lewisburg, PA 
OverviewInsuranceLocationsClinical ResearchSimilar Doctors

Overview

Dr. Challman is a board-certified and fellowship-trained specialist in neurodevelopmental pediatrics. His clinical interests include developmental disorders, including intellectual disability and autism. His research interests include genetic etiologies of developmental disorders and developmental screening. Dr. Challman earned his medical degree from Georgetown University. He completed his residency at Mayo Clinic, Rochester, then completed a fellowship in neurodevelopmental disabilities at Kennedy Krieger Institute. Dr. Challman is certified by the American Board of Pediatrics in developmental-behavioral pediatrics and neurodevelopmental disabilities.

Dr. Challman is rated as a Distinguished provider by MediFind in the treatment of Autism Spectrum Disorder. His top areas of expertise are Autism Spectrum Disorder, Increased Head Circumference, and Hypotonia.

His clinical research consists of co-authoring 18 peer reviewed articles. MediFind looks at clinical research from the past 15 years. In particular, he has co-authored 9 articles in the study of Autism Spectrum Disorder.

Graduate Institution
Georgetown University Medical School, 1991 - Doctor Of Medicine
Residency
Mayo Clinic - Rochester, MN, 1999
Specialties
Pediatrics
Licenses
Pediatrics in PA
Board Certifications
The American Board Of Pediatrics In Developmental-Behavioral Pediatrics And Neurodevelopmental Disabilities
Fellowships
Kennedy Krieger Institute, 2002
Languages Spoken
English
Gender
Male

Insurance

Accepted insurance can change. Please verify directly with the provider.

Find your insurance
Find your insuranceClose

Accepted insurance plans:

Aetna
  • EPO
  • HMO
  • POS
  • PPO
Anthem
  • EPO
  • HMO
  • POS
  • PPO
Blue Cross Blue Shield
  • EPO
  • HMO
  • POS
  • PPO
Capital Blue Cross
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • OTHER MEDICARE PART D
  • PPO
Cigna
  • EPO
  • HMO
  • PPO
EmblemHealth
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • OTHER COMMERCIAL
  • OTHER MEDICARE PART D
Gateway Health Plan
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE SNP
  • OTHER MEDICARE PART D
Geisinger
  • HMO
  • POS
  • PPO
Health Care Services Corporation
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE SNP
  • OTHER COMMERCIAL
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
  • PPO
Health Partners Plans
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE SNP
Highmark
  • EPO
  • HMO
  • PPO
Independent Health
  • EPO
  • POS
  • PPO
Managed Medicaid
  • OTHER MANAGED MEDICAID
Medicaid
  • OTHER MEDICAID
  • STATE MEDICAID
Moda Health
  • EPO
  • PPO
PA Health and Wellness
  • HMO
  • MANAGED MEDICAID PLAN
Sunshine Health
  • EPO
  • HMO
UnitedHealthcare
  • EPO
  • HMO
  • POS
  • PPO
UPMC
  • EPO
  • PPO
View 14 Less Insurance Carriers -

Locations

Geisinger Lewisburg - Pediatric Neurodevelopment
120 Hamm Drive, Lewisburg, PA 17837
Call: 800-275-6401
Other Locations
Geisinger Pottsville - Pediatric Neurodevelopment
529 Terry Reiley Way, Pottsville, PA 17901
Call: 800-275-6401
Geisinger Healthplex State College - Pediatric Neurodevelopment
132 Abigail Lane, Port Matilda, PA 16870
Call: 800-230-4565
Geisinger Forty Fort - Pediatric Neurodevelopment
190 Welles Street, Suite 128, Forty Fort, PA 18704
Call: 800-275-6401

Clinical Research

Clinical research consists of overseeing clinical studies of patients undergoing new treatments and therapies, and publishing articles in peer reviewed medical journals. Providers who actively participate in clinical research are generally at the forefront of the fields and aware of the most up-to-date advances in treatments for their patients.


18 Total Publications

Etiologic Evaluation of Children with Autism Spectrum Disorder.
Etiologic Evaluation of Children with Autism Spectrum Disorder.
Journal: Pediatric clinics of North America
Published: February 29, 2024
View All 18 Publications
Similar Doctors
Advanced in Autism Spectrum Disorder
Dr. Scott M. Myers
Pediatrics
Advanced in Autism Spectrum Disorder
Dr. Scott M. Myers
Pediatrics

Geisinger Lewisburg - Pediatric Neurodevelopment

120 Hamm Drive, 
Lewisburg, PA 
 (14.7 miles away)
800-275-6401
Languages Spoken:
English
See accepted insurances
Accepting New Patients

Dr. Myers is a fellowship-trained specialist in neurodevelopmental pediatrics. His clinical and research interests include autism spectrum disorder, intellectual disability, language disorders, cerebral palsy and other motor disorders, genetics of neurodevelopmental disorders, and psychopharmacology. His research interests also include origins of variable expressivity of pathogenic genetic variants, within-task variability in language and other aspects of development, and epidemiology and natural history of neurodevelopmental disorders. Dr. Myers earned his medical degree from Thomas Jefferson University. He completed his residency at Geisinger Medical Center, and completed a fellowship in neurodevelopmental disabilities at Kennedy Krieger Institute/Johns Hopkins University School of Medicine. Dr. Myers is certified in neurodevelopmental disabilities, developmental-behavioral pediatrics and general pediatrics by the American Board of Pediatrics. Dr. Myers is rated as an Advanced provider by MediFind in the treatment of Autism Spectrum Disorder. His top areas of expertise are Autism Spectrum Disorder, Micrognathia, Hypotonia, and Infantile Pneumothorax.

Advanced in Autism Spectrum Disorder
Dr. Kaylee H. Keiper
Pediatrics
Advanced in Autism Spectrum Disorder
Dr. Kaylee H. Keiper
Pediatrics
500 University Dr, 
Hershey, PA 
 (48.8 miles away)
717-531-5606
Languages Spoken:
English
See accepted insurances

Kaylee Keiper is a Pediatrics provider in Hershey, Pennsylvania. Dr. Keiper is rated as an Advanced provider by MediFind in the treatment of Autism Spectrum Disorder. Her top areas of expertise are Respiratory Syncytial Virus (RSV) Infection, Oppositional Defiant Disorder (ODD), Autism Spectrum Disorder, and Obesity in Children.

Advanced in Autism Spectrum Disorder
Dr. Qasim Mahmood
Pediatrics | Hospital Medicine
Advanced in Autism Spectrum Disorder
Dr. Qasim Mahmood
Pediatrics | Hospital Medicine
700 High St, 
Williamsport, PA 
 (28.7 miles away)
570-321-2810
Languages Spoken:
English, Hindi, Punjabi, Spanish, Urdu
See accepted insurances
Accepting New Patients
Offers Telehealth

Qasim Mahmood is a Pediatrics specialist and a Hospital Medicine provider in Williamsport, Pennsylvania. Dr. Mahmood is rated as an Advanced provider by MediFind in the treatment of Autism Spectrum Disorder. His top areas of expertise are Obesity in Children, Developmental Dysphasia Familial, Umbilical Hernia, and Croup. Dr. Mahmood is currently accepting new patients.

VIEW MORE AUTISM SPECTRUM DISORDER DOCTORS

Areas of Expertise

MediFind evaluates expertise by pulling from factors such as number of articles a doctor has published in medical journals, participation in clinical trials, speaking at industry conferences, prescribing and referral patterns, and strength of connections with other experts in their field.

Learn more about MediFind’s expert tiers

Find Dr. Challman's expertise for a condition
ConditionClose
    • Distinguished
    • Autism Spectrum Disorder
      Dr. Challman is
      Distinguished
      . Learn about Autism Spectrum Disorder.
      See more Autism Spectrum Disorder experts
    • Advanced
    • Increased Head Circumference
      Dr. Challman is
      Advanced
      . Learn about Increased Head Circumference.
      See more Increased Head Circumference experts
    • Experienced
    • Hypotonia
      Dr. Challman is
      Experienced
      . Learn about Hypotonia.
      See more Hypotonia experts
    Want to save this doctor for later?
    Sign Up
    Is this your doctor?
    Find A Second Opinion
    Not sure about your diagnosis?
    Check Your Symptoms
     
     
     
     
    Learn about our expert tiers
    Learn More
    Are you the provider on this profile?
    Claim Profile
    For Patients
    • Our Story
    • How MediFind Works
    • Conditions A-Z
    • Doctor Directory
    • Symptoms Directory
    • Procedures Directory
    • Treatment Directory
    • Drug Directory
    • Infusion Center Finder
    • FAQ
    • Contact Us
    For Providers and Practices
    • Claim Your Profile
    • Newsroom
    Business Solutions
    • Provider
    • Network Solutions
    Additional Resources
    • Consumer Health Data Privacy Policy
    • Privacy Policy
    • Terms of Use
    • Advertising Policy
    • Content Policy
    Subscribe to our newsletter

    Sign up to stay informed about MediFind and get wellness sent your way.

    Close

      By subscribing, I agree to MediFind's Terms of Use, Privacy Policy and Consumer Health Data Privacy Policy, as applicable.

      Bullet PinMediFind
      Follow us on
      This information is not intended as a substitute for informed medical advice. You should work with a licensed professional to diagnose and treat health conditions. We let the data speak for itself, MediFind does not endorse any healthcare providers.
      © 2026 All Rights Reserved

      Request an Appointment

      If you are experiencing a medical emergency, call 9-1-1.

      MediFind will contact the provider for your appointment request. You’ll receive status updates by email. Your provider or MediFind will reach out to you directly by phone or email to schedule your appointment or request additional information.

      Patient Details

      This information is for the patient who will be seen at the appointment.

        Close

        Returning patient? Use your address on file with the provider.

        Insurance Details

        Please provide information of the primary insurance holder as the practice may require this information to schedule.

        Insurance Provider *
        Insurance ProviderClose

        Appointments Details

        Let’s get more information about your appointment.

                0 / 1000
                0 / 1000
                By pressing the Submit button you are agreeing to MediFind’s Terms of Use, Privacy Policy and Consumer Health Data Privacy Policy, as applicable.