Evaluating the Implementation of a Comprehensive Multilevel Virtual Oncology Program Among Veterans Diagnosed With Lung, Colorectal, Prostate, and Breast Cancers in the US Department of Veterans Affairs

Patients Inclusion Criteria: 1. A Veteran 2. Aged 18 years or older 3. Newly diagnosed with lung, prostate, breast, or colon cancer within 3 months of telemedicine visit 4. Engaged in an oncology visit during the 36-month analysis period at a Veterans Affairs Medical Center (VAMC) location. VAMC Providers and Staff Inclusion Criteria: 1. Provider or staff member at one of the VAMC locations including physicians, nurse practitioners, physicians' assistants, and nurses caring for Veterans 2. Providers or staff members having helped provide care for at least 5 Veterans with cancer in the previous 6 months at a VAMC location Patients Exclusion Criteria: 1. Veterans who have not seen any providers in the VA within the past year 2. Patients previously diagnosed with lung, prostate, breast, or colon cancer 3. Pregnant patients VAMC Providers and Staff Exclusion Criteria: 1\. Providers or staff members who do not help treat Veterans with specified cancers in oncology at the VA