Simple web interface for dicom on S3

Here's a documented solution using AWS native services which I believe meets your needs.

https://aws.amazon.com/solutions/guidance/receiving-digital-imaging-and-communications-in-medicine-dicom-images-in-amazon-s3/

Hello, have you seen AWS HealthImaging? HealthImaging is a dedicated AWS service for storing, sharing, and streaming DICOM data in the cloud. HealthImaging is intended to make managing imaging data easier and rendering that data faster (i.e., normalized JSON metadata, purpose-built DICOM metadata search API, and losslessly encoded image frames). You may need to use some sample projects to enable your use case, or build any UI components yourself, but HealthImaging will get you further, quicker.