Mass HIway

In 2012, the State of Massachusetts launched the Mass HIway, one of the first statewide Health Information Exchanges (HIE) in the country. This publicly supported HIE enables the secure electronic transfer of clinical and other relevant patient health data among organizations, including hospitals, doctors offices, pharmacies, laboratories, skilled nursing facilities, and other healthcare entities. Connect to the Mass HIway to enable your healthcare information exchange process and to meet the HIE requirements for Meaningful Use.

The Mass HIway allows providers to send and receive health information to obtain the full medical history and coordinate the care of their patients. They can also query and retrieve secure medical records, for instance in emergencies.It can operate in all provider settings regardless of affiliations, location, or differences in EHR technology. 

A secure HIE provides a safer way of sharing patient information than faxing or mailing data. Nevertheless, to ensure patients are kept informed about their health data, Massachusetts law requires providers to obtain consent from patients to “opt-in” to sending their information over the HIway. Massachusetts Executive Office of Health and Human Services, EOHHS, provides guidance for patient consent requirements. 

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Connect to the Mass HIway

The Massachusetts HIway is open to all interested providers, hospitals, and other organizations within the healthcare community.

Healthcare participants can connect to the HIway in one of the following three ways:

  • Direct-enabled EHR systems;
  • Local Adaptor for Network Distribution (LAND);
  • Secure webmail portal.

The Mass HIway provides Direct Exchange and Query-based Exchange.

The HIway also enables electronic submission for Public Health Reporting as required for the Public Health Measures of Meaningful Use.

To learn more about the Mass HIway, visit

For more information

Call or send an email to the Mass HIway:

   1-855-MA-HIWAY (1.855.624.4929)

For HIE questions, call or email MeHI via:


Goals and Funding for the Mass HIway

The HIway project was financed with seed funding from MeHI and capital funding from the Center of Medicare & Medicaid Services (CMS). The HIway is operated by EOHHS, while MeHI encourages and supports adoption of the HIway across Massachusetts. 

Implementation of the Mass HIway is a critical component of enabling the Commonwealth’s healthcare community to: 

  • Positively influence care coordination and delivery due to improved access to information; 
  • Reduce administrative costs throughout the delivery system; 
  • Improve public health reporting and analytics; 
  • Enhance patient care communication among providers; 
  • Increase patient engagement with providers on care plans.

HIE Toolkit

The HIE Toolkit provides tools and use case examples for guiding an organization through the Health Information Exchange (HIE) process.

Mass HIway Directory

The Mass HIway Directory lists healthcare organizations enrolled in the Massachusetts Statewide Health Information Exchange (Mass HIway).