Nicholas Diaz-Appolonia
CEO @ Apolon Investment & Development Group I Founder, CTO @ HIT GROUP | Cross Functional Clinical Informatics IMIT SME l HIMSS Central Texas Advisory Board Member | TEDx South Congress Board Member
- Role
- Ambassador at SXSW
- Location
- Austin, TX, US
- LinkedIn followers
- 500 followers
About Nicholas Diaz-Appolonia
Nicholas Diaz‑Appolonia is a healthcare technology executive, clinical informaticist, and service‑disabled veteran with 20+ years of experience spanning healthcare delivery, government health IT, health policy, and advanced systems architecture. He specializes in building secure, interoperable, mission‑critical systems that strengthen clinical readiness, operational efficiency, and population health outcomes.As Founder & Chief Technology Officer of HIT Group, Nick leads healthcare innovation as a senior architect, CTO, and subject matter expert. His work includes major initiatives across the Military Health System, Veterans Health Administration, CMS, and state and commercial healthcare organizations—supporting some of the most complex federal EHR, integration, and interoperability programs.Nick began his career as a clinician in the U.S. Army, serving as an Operating Room Nursing Specialist and later as an Official Command Trainer supporting combat medic and convoy medical operations. This clinical foundation, paired with deep expertise in software architecture, secure data integration, emergency management, and operational planning, enables him to bridge clinical, technical, and executive domains.Previously, Nick served as Chief Medical Information Officer and Principal of Healthcare Informatics at SAIC Health Solutions, advising senior leaders at the Department of Defense and Department of Veterans Affairs on enterprise health IT strategy, interagency interoperability, and modernization of mission‑critical clinical systems.Nick is also the Founder & CEO of Apolon Investment & Development Group (AIDG), an emerging development and investment organization focused on commercial and government infrastructure projects. Through AIDG, he brings strategic, operational, and risk‑aware leadership to initiatives that support long‑term community and mission‑driven needs.His professional mission centers on designing advanced concepts and integrated technology solutions that enhance workflow, security, and decision‑making—driving sustainable impact across healthcare, government, and commercial sectors.
Experience
Ambassador
Jan 2026 — Present · Austin, TX, US
Education
US Academy of Health Sciences/AMEDD Center & School
Operating Room Spec/Surgical Nursing
Yale School of Medicine
Perioperative Surgical Medicine
Georgetown University
Physiology, Pathology and Related Sciences
US ARMY 1st Armor Training Brigade Academy
Infantry
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