Help with google ads

I am a doctor. I have a google ad running which has a decent impressions. I want help with improving the way the clients can reach me. Can I ensure that they directly contact me on whatsapp. I have a business whatsapp account. Can I ask them to fill up a form so that I can contact them back. How can I give them the option of physical consultation vs online consultation. Can I integrate a payment gateway to it. Finally rather than my website, can I decide a landing page in my website. I want these things to be done. I want this to be done via team viewer access