HLN Consulting – Public Health Informatics & Open Source Experts

“We thrive on new challenges. At HLN Consulting, we are driven to excellence through collaborative partnerships—large and small—to help our public health informatics clients successfully deploy innovative, open source solutions. Through our commitment to strategic planning and data modernization, we continue to strengthen and enhance public health systems to meet both current and future challenges.”
– Dr. Noam Arzt, President

Welcome

HLN Consulting is a leading health information technology consulting company. Our mission is to enhance and support the capabilities of public health organizations and healthcare providers by providing high-quality consulting services, strategic planning, and software development including open source.

Who We Are

What We Do

Develop and maintain new or existing systems for our clients

Manage a process to ensure successful roll out of new systems

Devise innovative strategies to solve organizational challenges

Featured Solutions

IIS on FHIR®!

Leveraging a proven methodology and tools to operationalize a new immunization information system (IIS)

Open Source immunization evaluation and forecasting

Replacing a decommissioned product with a well-supported system while adding a useful enhancement

Ensuring successful system migration

Leveraging a proven methodology and tools to operationalize a new immunization information system (IIS)

Recent Blog Posts

Leveraging the ICE Open Source Immunization Forecaster during COVID

Like many things in the age of COVID, the vaccine development landscape is
unlike anything we have seen in our lifetimes. There are over 100 SARS vaccines currently in development, many of which are utilizing new technologies not used in any currently licensed vaccine. The potential impact on immunization schedules (clinical guidelines for clinicians) and immunization clinical decision support is significant.

CMS Immunization Measures Updates to the 2026 Child and Adult Core Sets

Recent changes by the Centers for Medicare & Medicaid Services (CMS) in immunization quality measures in the Child and Adult Core Sets fundamentally jeopardize the outlook for vaccine equity and mark a pivotal moment for public health. Read why a jurisdiction’s Immunization Information System (IIS) is now a more vital asset in data-driven vaccine decision making.

HLN Attends the 2026 ASTP Annual Meeting

The 2026 ASTP (Assistant Secretary for Technology Policy) Annual Meeting highlighted strong federal momentum around interoperability, patient access, and AI—alongside infrastructure gaps and limited public health representation.

The Sequoia Project’s Public Health Interoperability Roadmap

This post summarizes HLN Consulting’s comments on the Sequoia Project’s draft Public Health Interoperability Policy Roadmap, highlighting governance, standards, and implementation considerations.

Affiliations

Standards Development Membership