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Diameter Health



Eric Rosow






Diameter Health


City/Town where Organization Located

Farmington, CT


City/Town of Residence - this is for media placement

Avon, CT


Company/organization description (<500 characters)

Diameter Health enables clinical insight through the normalization, cleansing, deduplication and enrichment of clinical data from across the care continuum. This creates a single, unified source of longitudinal structured patient information for improved care and actionable analytics. The Diameter Health platform empowers organizations that depend on multi-source data streams, such as health plans, Health Information Exchanges (HIEs), and health systems to realize greater value from their data. Diameter Health is the first organization to earn eMeasure Certification from the National Committee for Quality Assurance (NCQA) and certification through the Office of the National Coordinator for Health Information Technology (ONC) Health IT Certification Program. For more information, visit the website http://www.diameterhealth.com or email us at info@diameterhealth.com.


Tell us about the entrepreneurial milestones you accomplished in 2019 (<500 characters) e.g., patents received, growth rate, and successful MVP, trial, or exit, etc…

Diameter Health continues to grow in multiple markets that require clean, normalized and summarized clinical data. These markets include Health Information Exchanges (HIEs), payers, the federal sector and healthcare IT vendors. In early 2019, Diameter Health completed a Series A-1 investment that was led by Optum Ventures (www.optumventures.com).


What type of entrepreneur are you? Scaling Company: regional, national, or global business focus and greater than $1,000,000 in revenue in 2019; Scalable Venture: regional, national, or global business focus and less than $1,000,000 in revenue in 2019; Main Street: local business focus;Social Good: social enterprise or nonprofit focus

We are a scaling company at the national level. Diameter Health was founded on the simple premise that healthcare needs better data and our team is dedicated to the mission of making semantic interoperability a reality across the nation.


Student entrepreneur: Are you a student and younger than 25 as of December 31, 2019? YES or NO


What CT entrepreneur ecosystem resources (spaces, programs, events, schools, etc.) have helped you succeed? (<500 characters)

Connecticut Innovations lead our Series A round and remains on Diameter Health's board of directors. Diameter Health was also a three-year participant in UConn's Technology Incubation Program (TIP). Being part of the TIP ecosystem enabled the company to scale in a capital efficient manner while also providing access to other entrepreneurs, advisors and investors throughout the state. Eric Rosow is also a member of TIP's advisor board.


What people are saying about Eric Rosow ...

 Eric is the CEO of Diameter Health in Farmington,Ct. Diameter “cleans” up medical health data and sells its SAAS software to health exchanges, Goernment agencies and health providers.In 2019, Eric led the company to several hundred percent revenue growth, and completed a major venture financing led by Optum Ventures, which is part of United Health.  

Alan mendelson

 Already a successful healthcare IT entrepreneur in Connecticut with Premise Corporation, Eric Rosow and his co-founder John D’Amore established Diameter Health in 2013. Headquartered in Farmington, CT, Diameter Health seeks to be the de facto technology platform for refining clinical data to fuel the healthcare ecosystem. The company has grown from two employees to over sixty team members in 2020. Over the past three years, company revenue has grown 70% annually and Diameter Health now has over twenty customers, including the Veterans Administration, Centene Corporation and Health Catalyst. Eric’s relentless focus on improving clinical data quality at scale is evident in how customers describe the company, such as this example from our customer, Jared Crapo, a Senior Vice President at Health Catalyst: https://media.slapfive.com/v876e40e0-4695-4059-bd5f-6c0b80ca9924Eric has been deeply involved with the Connecticut technology community including as a board member on the Connecticut Technology Council as well as a board member on several technology start-ups in the state.  

Tom Gaither





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