Your application server comes with the mongo shell pre-installed.

Connecting with SSL:

Per HIPAA requirements, you should use a TLS (SSL) connection when connecting to your MongoDB server from your application server.

mongo --ssl --host <host-goes-here> \
  --authenticationDatabase <database-goes-here> \
  --sslCAFile /etc/ssl/hcb_ca.pem \
  -u <username-goes-here> -p