His clinical service is with the Infectious Diseases Consult team at TUH where he also serves on committees related to antibiotic use and guideline preparation. He lectures on the pharmacotherapy of infectious diseases and the practice of clinical pharmacy at Temple and also teaches antibiotic pharmacology at Drexel University School of Medicine, where he has an adjunct appointment. Dr. Gallagher’s research interests focus on the treatment of resistant Gram-negative and Gram-positive infections and on antifungal pharmacotherapy. He is a past-president of the Mid-Atlantic College of Clinical Pharmacy.