Ventura County Hematology Oncology Specialists

Ventura County Hematology Oncology Specialists is a physician-owned community hematology and oncology medical group serving patients in Ventura County, California. Founded in 1971, the practice provides coordinated care for cancer and blood disorders across clinics in Oxnard, Ventura, and Camarillo. Its services include medical oncology and hematology consultations, infusion and oral drug therapy, in-house laboratory support, bone marrow biopsies, care coordination, financial advocacy, and access to clinical trials. The group also participates in multidisciplinary tumor boards and works with local cancer centers and hospitals to deliver community-based specialty care. In December 2025, VCHOS entered a strategic arrangement with OneOncology while remaining independently owned and physician governed.