Here are the top rated EHR for connectivity based on the Medscape EHR Report 2016: Physicians Rate Top EHRs.
1. VA-CPRS
2. Epic
3. Cerner
4. athenahealth
5. AHLTA
6. MEDENT
7. eClinicalWorks
8. MEDITECH
9. Allscripts Enterprise
10. e-MDs
11. Centricity
12. Practice Fusion
13. Allscripts Professional
14. McKesson
15. NextGen
16. Practice Partner
17. Gateway
18. Amazing Charts