Program Information AHCS Specialty Care pharmacy is a subsidiary of Advantage HealthCare Services. We are a technology-driven health care services organization that is dedicated to mitigating risk and optimizing client outcomes. Our approach encompasses both the medical and the emotional support that can take a patient on the journey from medical application to improved lifestyle and wellness. Each of our locations works together to offer mainstream, holistic and integrative solutions for broad-spectrum access to both walk-in patients and those that we serve throughout Southern California.