HLN Consulting – Public Health Informatics and 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.

HLN Updates the Immunization Calculation Engine and Launches CDS Insight, a New Testing Tool

HLN released ICE v2.55.1 with updated clinical logic for Hepatitis A, Hepatitis B, Polio, and COVID-19 vaccines, plus faster performance and improved deployment flexibility. HLN is also excited to announce CDS Insight, a new interactive platform for testing ICE logic in real time. Register for a free account today.

HLN Submits comments to Health Data, Technology and Interoperability: ASTP/ONC Deregulatory Actions to Unleash Prosperity (HTI-5 Proposed rule)

In December 2025, the Assistant Secretary for Technology Policy (ASTP) released the draft HTI-5 proposed rule. HLN conducted a detailed review with particular attention to its implications for public health and submitted formal comments outlining key considerations for the public health community.

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.

Affiliations

Standards Development Membership