1. Telehealth Platform: Health informatics professionals can build an efficient telehealth platform to facilitate remote medical services. This could include the implementation of medical video conferencing, secure messaging platforms, and electronic medical records.

2. Medical Analytics Service: Health informatics professionals can develop data-driven analytics services to help health care organizations gain insight into their patient care activities and outcomes. These services could include data visualization, predictive analytics, and Machine Learning (ML) models.

3. Clinical Decision Support: Health informatics professionals can create clinical decision support systems to assist physicians in making better decisions about patient care. These systems could include decision trees, algorithms, and ML models to help predict outcomes and generate recommendations.

4. Patient Care Portal: Health informatics professionals can build a patient care portal to provide easy-to-use, secure access for patients to access their medical records and communicate with their providers. This could include features such as appointment scheduling, prescription management, and payments.

5. Wearable Technology: Health informatics professionals can develop wearable technology to enable ongoing patient monitoring in real-time. This could include sensors to monitor vital signs, mobile health applications, and data integration with medical records.