There is great need for your Dad to be getting appropriate treatment by a qualified dr.
In the meantime...there is a good article below that may be able to answer many of the questions you have...
It explains causes, complications and treatments.
Hope your Dad feels better soon. You need to make sure the dr. is taking care of this soon. Dr and/or specialist will be able to read the reports and make the exams and recommendations for the best outcome for your Dad with his other conditions in mind.
Chronic pancreatitis can cause diabetes and pancreatic cancer.
You can read the above article and it may help you with things to talk to dr about.