Welcome to Ask.digitalvidya.com , your query sounds very practical & glad to see the task you are doing for the Hospital. As per your query, I hope you must have created a strategy plan for the website, I would give you a few shortcuts & tricks to move with the pace.
Fist of all I would recommend you to rather then creating the website from the scratch you can purchase an theme for the Hospital website, there are many websites like Teamforest, Templatemonster etc where you can find ready to use Wordpress themes, specially designed for hospitals. This will save a lot of your time & money. They are designed & tested for the purpose. And they are fully customizable for logos, colors, text etc.
Another thing I would recommend you to visit the top website in this segment and look for their best as well as basics features, the simpler you keep things the better user experience it would give to users later.
Then comes Digital Marketing, where I would recommend to focus on SEO & Social Media. This is something could create Viral engagement as well as relavancy, at the same time once the website is ready, you can register your website to various directories as well portals like practo, justdial, sulekha etc which would give referral traffic to you. As well as go for Google local listing using that you would have local online presence.
I hope this would help, let me know in case of any further query, and keep sharing the progress.
All the Best,