I'm afraid there isn't. Any interactivity or form fields disappear when placed in InDesign. I've never ever heard of a workaround except what you're doing.
Try to insert the pdf form page from Acrobat>Insert Pages>From File
Salah's suggestion should work if that form is on a page unconnected with the rest of the project.
My previous answer was based on your wanting to PLACE the form in InDesign, which loses the interactivity and form fields.
I inserted the form but the form I am using is an XML form and Acrobat will not let you insert an XML form. You can add it as an attachment.
The only problem with the attachment is, if you don't have something that info's you that there is an attachment present it could be missed.
I made a quick form from InDesign and exported it to an interactive PDF. Then went and inserted this PDF form into the PDF manual and it worked like I am needing. The only problem is when you click the email button it still emails the complete manual. I have to now figure out how to be able to email only the one page.
I thought I may have to add a link that takes you to this form on our website so it could be completed and sent from there.
Thank you both for the help!
AFAIK, you can't just pick and choose which part gets emailed.
That said, you're going to get way more expertise on that in the Acrobat
forum. I think you might want to pop over there.