Nurse Practitioner Salary in Indiana. The average Nurse Practitioner Salary in Indiana (IN) is $85,590 which is again below the average national salary for Nurse Practitioners (NP’s).The latest figures show that there are 2,650 Nurse Practitioners working in the state of Indiana across a range of industries.egistered Nurse Salary in Indiana. The average salary for a Registered Nurse in Indiana (IN) is $57,520 which is below the national average for RN’s viewed across all U.S. states. There are approximately 58,430 people employed as Registered Nurses in the state of Indiana – across a range of varied industries.