Architecture: Replace 12 MS apps with a single ASP.NET application

Greetings

I wonder if you could give your opinion on something I am working on right now? We have 12 MS Access applications that look quite similar in terms of data and functionality: each app allows 12 practices to capture data for services they provide to patients. The practices cover physical therapy, orthotics, speech and language , social services , etc. 6 are for inpatients and 6 for outpatients.

I built a MS SQL database to replace the 12 apps and respective 12 databases. The model looks pretty good and I think it will scale well.

Now I am working on designing an asp.net web forms app to replace the above 12 apps. My dilemma is: how should I approach this challenge?

In the current version of the apps, each data entry screen looks almost the same amongst practices; there are a few cosmetic changes and fields may be laid out differently but the result is the same: allow the user to enter service codes for work performed on their patients.

So, say that for each app, we have a page called charges.aspx which will look almost the same per practice.

My question is: should i build 12 similar pages, one for each of the old apps, since the data entry is very similar? Or, maybe, generate the UI, previoulsy defined in sql using something like a template for each practice?

Any suggestions would be welcome!

Regards,

Huambo