Background: Given the often atypical and diverse presentations of immune-related adverse events, the utilization of an institutional multidisciplinary irAE tumor board is an effective strategy to deliver comprehensive, collaborative, and efficient care to patients experiencing these effects. We report the clinical impact of a multidisciplinary tumor board dedicated towards management of irAEs in patients receiving checkpoint inhibitor therapy. Methods: We completed a retrospective review of patients discussed during our multidisciplinary irAE tumor board at Cleveland Clinic Taussig Cancer Center. Pertinent data collection regarding malignancies, therapies, and reported irAEs was completed through the electronic medical system. Results: Between September 2017-January 2021, 96 patients were discussed in our institutional irAE tumor board. 48 males and 48 females were discussed with the most common primary malignancies being melanoma (53%, 51/96), lung neoplasms (25%, 24/96), and renal cell carcinoma (15%, 14/96). Of the therapies used by these patients, the most frequently associated checkpoint inhibitors were Nivolumab (41%, 39/96), Pembrolizumab (30%, 26/96), and Ipilumumab (17%, 16/96). irAEs affecting the gastrointestinal system such as colitis, hepatitis, and gastritis were most common among discussed patients (40%, 38/96), however several patients also exhibited irAEs targeting the neurological (12.5%, 12/96), rheumatologic (11%, 11/96), dermatologic (8%, 8/96), respiratory (8%, 8/96), and cardiac systems (4%, 4/96). The utilization of tumor board was documented in 41 patients’ notes (43%), with increased documentation over the past year (71%, 24/34), and 70 patients (73%) received a pertinent consult for management of their irAE post tumor board recommendations. Conclusions: Clinical utilization of irAE TB recommendations was high as evidenced by clinical documentation and consequent referrals. Increasing institutional awareness of tumor board over the past year was reflected in a proportionate rise in official documentation. irAE tumor board has the capacity to promote more effective cross-specialty collaboration during treatment of irAEs by both streamlining patient care discussions and encouraging cross-fertilization of therapeutic concepts between multiple subspecialties, and may ultimately increase quality of care for patients experiencing these toxicities.