Patrick J. McMahon, MD

Patrick J. McMahon, MD, is a pediatric dermatologist in the Dermatology Section at The Children's Hospital of Philadelphia.

Locations: Main Campus; Specialty Care, Virtua
Appointments and Referrals: 1-800-TRY-CHOP (1-800-879-2467)

  • Education and Training

    Medical School

    MD - Stony Brook School of Medicine, Stony Brook, NY


    Pediatrics - The Children's Hospital of Philadelphia, Philadelphia, PA


    Pediatrics - The Children's Hospital of Philadelphia, Philadelphia, PA
    Dermatology - University of California-San Francisco, San Francisco, CA (Chief Resident)


    Pediatric Dermatology - The Children's Hospital of Philadelphia, Philadelphia, PA

    Board Certification


  • Titles and Academic Titles

    Attending Physician

  • Departments and Services
  • Publications


    2004, Alpha Omega Alpha
    2004, Gold Foundation Humanism Honor Society
    2001, Phi Beta Kappa National Honor Society
    2001, Alpha Sigma Nu Jesuit Honor Society



    Boos MD, McMahon P, Castelo-Soccio L. Acute onset of a hemorrhagic rash in an otherwise well-appearing infant. J Pediatr. 2012 Jul 18. Cited in PubMed; PMID 22817909. No abstract available.

    McMahon P, Oza V, Frieden IJ. Topical timolol for infantile hemangiomas: putting a note of caution in "cautiously optimistic". Pediatr Dermatol. 2012 Jan-Feb;29(1):127-30. doi: 10.1111/j.1525-1470.2011.01685.x. Cited in PubMed; PMID 22256996. No abstract available.

    Posters and Presentations


    McMahon P. Topical beta-blocker therapy for hemangiomas: eye opening findings [presentation]. Pediatric Dermatology for the Practitioner; 2011 Apr; Philadelphia, PA.

  • Editorial and Academic Positions

    Editorial positions


    2011-present, Pediatric Dermatology Journal
    2011-present, Archives of Dermatology
    2011-present, Journal of the American Academy of Dermatology