304 Background: Acute care visits for oncology patients may be preventable, especially for high-risk patients with a recent hospitalization. During our 2023 Fiscal Year, we observed an approximate 22% rate for 30 day readmissions for oncology patients, with our gastrointestinal (GI) oncology patients having the most readmissions, at Stanford Cancer Center. Readmission review through clinician surveys suggested that about 28% of unplanned admissions may have been preventable, with root cause analysis identifying timely access to ambulatory symptom management as a major driver. Methods: We established a cancer transitional care (CTC) clinic to provide consistent and timely post-discharge follow-up for oncology patients. We initiated a pilot program for GI oncology patients (chosen due to high acuity and readmission rate) who had an unplanned admission to Stanford Hospital. We aimed to schedule a visit with an advanced practice provider (APPs) within 7 days of discharge. The A3 problem solving process was implemented weekly by a multidisciplinary team. We created a referral in our electronic medical record. Inpatient oncology teams were instructed to place this referral within 3 days before discharge, allowing for adequate patient and family education regarding the goals of CTC visits and ample time for the post-discharge CTC visit to be scheduled prior to patient discharge. Prior to CTC visits, pharmacists performed outreach to reconcile medications to reduce medication errors. Eight oncology APPs were trained regarding the focused nature of a CTC visit, including symptom management, medication reconciliation, and goals of care discussions. Results: At baseline, from June 1 and November 30th, 2023, 61% of patients had follow-up within 7 days of discharge and 12% of patients with none. Between December 13, 2023 and April 19, 2024, CTC implementation resulted in a total of 220 referrals for GI oncology discharges, yielding 144 CTC clinic visits. Resulting in 66.1% of patients having follow up within 7 days of discharge and 9% of patients had no follow up scheduled. 79% of visits were within 7 days of discharge, representing a 29% increase in our goal scheduling timeline. The average time between discharge date and CTC visit was 6.2 days. Sixty six patients also received detailed pharmacy reviews with medication reconciliation and addressing medication access issues. Conclusions: Through our CTC clinic, we standardized post-discharge follow-up access for GI oncology patients, reducing variability in follow up. We plan to disseminate this model across medical oncology subspecialty clinics. Barriers included standardization of follow up with clinical team and expectations for the visit for both patients and clinicians. Future directions include integrating same day symptom management and urgent care access.