Cloud powerhouses (in “power” order) Amazon, Microsoft, and Google are focusing their artificially intelligent (AI ) services on the multi-trillion-dollar health care industry. AI systems can potentially act like doctors as well as automating data entry, patient management, referrals, and diagnoses. Amazon Web Services currently processes and stores genomics data for biotech companies and clinical labs. Microsoft is planning to store DNA records. Microsoft’s Healthcare Next System automates data entry and makes some cancer treatment recommendaions to doctors based on visible symptoms. Google is placing the largest bets on the industry to enhance its third-place cloud offerings. Their ambition is to prepare for a cloud-based service that can make diagnoses and eventually even replace doctors. Major steps ahead include refining its genomics data analysis, reworking its augmented-reality Google Glass headgear into a product more useful to doctors, and using AI to pair patients with drug therapies. In November 2016, Google researchers demonstrated an AI system that scanned images of eyes to spot signs of diabetic retinopathy, which causes vision loss among people with high sugar levels. Advances in 2017 include software to scan lymph nodes, diagnoses of breast cancer from a set of 400 images with 89 percent accuracy, and the migration of research data to Google’s cloud to support varous studies by universities. The data migration will help Google’s AI systems learn and learn faster. Notwithstanding, replicating the skills and judgment of doctors is an ambitious, long-term vision.