Anesthesiologists play a pivotal role in modern perioperative care, contributing significantly to patient safety, surgical efficiency, and cost reduction. Through preoperative optimization and targeted testing in dedicated perioperative clinics, anesthesiologists minimize unnecessary procedures, enhance surgical outcomes, and streamline healthcare costs. Their expertise in risk stratification, the use of evidence-based guidelines, and collaboration with multidisciplinary teams ensures tailored care for patients with comorbidities. Advanced technologies like electronic health records (EHR) and pharmacogenomics further enhance decision-making and patient safety. Additionally, anesthesiologists reduce hospital readmissions and post-surgical complications by managing postoperative pain and recovery effectively. The integration of personalized medicine and efficient surgical pathways, such as Enhanced Recovery After Surgery (ERAS) and the Perioperative Surgical Home (PSH) model, continues to reduce healthcare costs and improve patient care.