Clinical interests for Dr. Mariotti include hay fever (allergic rhinitis), sinus problems, and sinus surgery. Dr. Mariotti's professional affiliations include Hospital of the University of Pennsylvania (HUP) and Chester County Hospital. He is an in-network provider for several insurance carriers, including United Healthcare Platinum, United Healthcare Compass, and United Healthcare Navigate. After attending Thomas Jefferson University, Jefferson Medical College for medical school, he completed his residency training at a hospital affiliated with Loyola University.