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Pediatrician, Pulmonologist (lungs), Pediatric Specialist
27 years of experience
License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

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Specialties & Research

Dr. Charles Callahan, DO is board certified in Pediatrics and Pediatric Pulmonology.

  • He has special expertise in 3 areas:
  • Acid Reflux Disease (Gastroesophageal Reflux / GERD)
  • Asthma
  • Bronchiectasis

Education & Awards

Dr. Callahan graduated from UMDNJ at Stratford.


Dr. Callahan has 1 hospital affiliations:

  • Walter Reed Army Medical Center 

> > > > Dr. Charles Callahan, DO

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Additional Information
Dr. Charles Willis Callahan DO is a male Pediatrician, has 27 years of experience and practices in Pediatrics and Pediatric Pulmonology.
Where does Dr. Charles W. Callahan practice?
Dr. Charles Callahan has 1 office location.
Dr. Charles Callahan practices Pediatrics and Pediatric Pulmonology near Silver Spring, MD.
See Silver Spring Pediatricians and Silver Spring Pulmonologists.