Background: Integrating Geriatric Assessment (GA) in the management of older adults with cancer is recommended, yet rarely practiced in routine oncologic care. Our objective was to assess the feasibility of integrating routine GA in the management of older adults with gastrointestinal (GI) malignancies and characterize impairments in this population. Methods: Patients ≥60yo referred for consultation to the GI Oncology clinic were asked to complete the Cancer and Aging Resilience Evaluation (CARE) on their first visit. CARE was adapted from the Cancer and Aging Research Group GA with modifications to create a completely patient-reported version of the GA. Feasibility was defined as completion of CARE by ≥80% of eligible patients during the initial consultation. Results: Of the eligible 354 new patients seen in the GI Oncology Clinic, 323 (91.2%) completed the CARE survey. Most patients (83.1%) felt the length of time to complete was appropriate (median time of 10 min [IQR 10–15.7 min]). GA impairments were prevalent: 54.7% reported dependence in Instrumental Activities of Daily Living, 15.5% reported dependence in Activities of Daily Living, 20.9% reported ≥1 fall, 35.9% reported a performance status ≥2, 55.7% were limited in walking one block, 74.0% reported polypharmacy (≥4 medications), and 36.4% had ≥3 comorbidities. Conclusions: Performing a GA in the routine care of older adults with GI malignancies is feasible, and GA impairments are common among this population. A fully patient-reported GA such as the CARE may facilitate broader incorporation of GA in the routine clinic work flow.