An electronic medical records system (EMR) is a necessity in medical practice today. There are many commercial systems out there, some tailored to the needs of particular specialties, and some more general. Choosing a system is not easy, because the comparison is hard to make truly "apples to apples". Here is a review of the best systems of 2020, recently published by an independent not connected to any EMR maker.
https://www.businessnewsdaily.com/10914-best-electronic-health-records-systems.html
Most EMRs now live either in the cloud, or are easily installed on a laptop, so you can see patients anywhere and have it with you. The better systems also offer patient scheduling, coding, and billing options.