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

Timeline graphic outlining HLN’s IIS migration phases, from planning and stakeholder engagement to system go-live.

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 Releases a New Version of the Immunization Calculation Engine with New Clinical Logic, Technical Features, and FHIR API Changes

HLN has released ICE v2.61.1, featuring key clinical logical updates for Hepatitis B, MMR, Meningococcal ACWY, and Pneumococcal vaccines. The release also includes technical enhancements, such as separate configuration settings and updates to the experimental FHIR API. Users can review the full release notes, download the latest version, and explore simulated patient scenarios using CDS Insight.

Radical, Purposeful, and Very Much Alive: Reflections from the 2026 NE Epi Conference

Recapping the 2026 Northeast Epidemiology Conference, HLN explores the intersection of modern technology and frontline field work. Discover our key takeaways on using AI to visualize siloed system integrations, why the human element remains vital to analytical accuracy, and how clean, deduplicated data underpins local readiness across public health.

HLN Consulting Names Lilly Kan First Chief Executive Officer

Big news at HLN Consulting: Lilly Kan is our first Chief Executive Officer and will start full-time on January 1, 2027. Read more about Lilly and the leadership transition.