The Mass HIway is connected to the following HISPs:

HISP and Vendor Participants
1. Allscripts (MedAllies HISP) 14. MaxMD
2. Aprima 15. MatrixCare
3. ASP.MD 16. McKesson (RelayHealth)
4. Athenahealth 17. Medicity
5. CareAccord 18. MyHealthProvider (Mercy Hospital)
6. CareConnect (NetSmart HISP) 19. NextGen Share
7. Cerner 20. NHHIO
8. DataMotion 21. PCE Systems
9. eClinicalWorks 22. SES
10. eClinicalWorks Plus 23. Surescripts
11. eLINC 24. UpDox
12. EMR Direct 25. Wellport (Lumira HISP)
13. Inpriva  

The Mass HIway is currently connected to, or in the process of connecting to, the following vendors:

Advanced Data Systems Eaglesoft Clinician LMR Remarkable Health
Allscripts eClinicalWorks Lytec MD (McKesson) SEE
Amazing Charts eHana Matrix Siemens
AMS EMA Modernizing Medicine MatrixCare Sigmacare
Aprima E-MDs Mckesson SMART
ASPMD Encite Medflow Soarian (Cerner)
Athenahealth Epic Meditech Spring Charts
Axxess Flatiron MediTouch STC
BayCIS GE Mednet Medical (EMR4MD) Suncoast Solutions
Care At Hand gEHRiMed Netsmart Surescripts
Care360 (Quest) Greenway Nextech Unitcare
Carelogic HCHB NextGen Vista
Cerner HealthWyse Office Practicum WebOMR
ComChart HermesIQ Physician's Computer Company Zoll
Compulink HomeCare Point Click Care  
CPSI Homecare Homebase Point N Click  
Credible Homegrown Practice Fusion  
Delta (Encore product) icanotes Practice Partners  
Dentrix Impreva Practice Perfect