Pretty sure the Scout/SmartThings interface is via IFTTT.
I’m sure others who do a lot with cameras will have more to suggest for your set up.
Video integration is not SmartThings’ strong suit. For example, even with the Samsung model that has an official integration you cannot trigger SmartThings events off of the motion sensor in the camera. So you may end up wanting to have a separate system for the video with just partial integration to ST.
Plus, to be honest, I wouldn’t put anything that might involve medical emergencies solely on SmartThings at the present time. It’s just not reliable enough.
I have both a security system and a medical monitoring system. But I don’t run either through SmartThings.
Again though, others will be able to say more about specific camera models that might suit your needs. 
Medical Monitoring: Continuous or patterned?
I’m not sure if @jmay33 has done anything with cameras, but he works with the VA and has done a lot of medical monitoring. He might have some additional ideas.
One of the issues that I know people may run into with medical monitoring systems is unlike a typical home security system, you sometimes want the camera to run continuously. That’s going to eat batteries. So some of these depend on mains-powered cameras instead.
On the other hand, many medical monitoring systems, including mine, incorporate the idea of “wellness checks” where individual sensors pick up activity patterns over the course of the day and only report things that seem off the norm. For example if there’s a medication you should take every day at three, you can put it in a drawer And have the contact sensor for that drawer notify someone if the drawer is not opened by say 3:30. Or if there’s been no activity in the kitchen or bathroom for six hours, that probably means the person is still in bed and may need to be checked on. Or if a step counter has a very low count. Things like that. So maybe instead of running a Camera continuously, you only use the camera to check on someone from time to time. But again it all comes down to your specific needs.
@pstuart @smart @jody.albritton @Carinda
Also more on specific camera models in the following thread:
Video Monitoring - V2 Hub - Intergration with existing camera systems
Video Doorbells
For video doorbell, it depends on the exact use cases you’re trying to solve. For example, I am in a wheelchair and it can take me several minutes to transfer from the sofa to the chair to go answer the door. I can send my dog to open the door more quickly, but of course only if it’s someone that I want to open the door to. Also, some people have codes to come in but still wait to be told it’s OK.
So I wanted to be able to see someone at the door, to have two way audio communication, and to be able to do a check of the video at any time, not just when someone had pushed the button. I got this from the Kuna porch light that has a Wi-Fi camera in it. I’m really happy with that, but it does require power.
The ring doorbell can be operated just on batteries, but you can’t watch video on demand, it only works when motion is detected.
The Arlo cameras are very popular because they also run on batteries, but then you don’t have the two way audio.
None of these integrate directly with SmartThings. They still all good choices for somebody, just depends on your exact needs.
BTW, If you are renting in the US, you might be able to ask to run power to a device in the front door area as a “reasonable accommodation” but you will have to pay for the modifications yourself, and you might have to pay to remove them when you move out. And it has to be something specifically related to mitigating your disability. But it is an option for some cases, just like someone might need a wheelchair ramp or automatic door opener put in.