Background: In 2016 ASCO updated its guideline for early integration of palliative care (PC) into standard oncologic care for all “inpatients and outpatients with advanced cancer.” PC has been shown to improve quality of life, align care at the end of life with patient preferences, and reduce health-care utilization. In preparation for the expansion of our palliative care service into ambulatory disease-based practices at Smilow Cancer Hospital at Yale-New Haven, we sought to create a decision support tool (DST) in the EPIC Electronic Health Record (EHR) that would identify patients for PC referral. Methods: This DST identifies patients with a GI or thoracic malignancy who have had an ICD-10 diagnosis of metastatic or stage IV disease, have not had a palliative care visit in the last 6 months, and are not enrolled in hospice. If the patient meets criteria, the DST will remind providers that “this patient meets ASCO and IOM criteria for concurrent palliative care with oncologic care ” and offers a one-click option to place the referral. To understand the volume of patients this DST would refer, we ran it silently in the EHR background from 7/15/16 through 9/1/16. We tracked how many patients were seen in the clinics, how many were eligible, and how many were referred to PC. Results: See table. Conclusions: Our silent BPA indicated that only 5% of patients eligible for a palliative care consult received it at baseline; this matches national data, which suggests that most patients who would benefit from PC do not receive it. This DST has the potential to dramatically improve PC referral rates and increase adherence with ASCO and IOM guidelines. We plan to move the DST into the live clinical EHR in 2017 after the integrated PC clinics are open. We anticipate that once our BPA is activated, we will see a dramatic increase in the number of eligible patients referred to palliative care.