About AEGIS ISD
We exist to make healthcare program integrity faster, fairer, and more defensible.
AEGIS ISD, LLC is a healthcare program integrity company that builds technology for fraud detection, SIU case management, medical review, and recovery tracking. We help health plans and state agencies protect programs from fraud, waste, and abuse while supporting fair, transparent provider relationships.
Our mission
Deliver clear, defensible outcomes for healthcare program integrity teams through a unified platform that combines fraud detection, case management, medical review, recovery tracking, and AI-powered investigation tools in one configurable, audit-ready workspace.
Our Story
Built by people who know program integrity from the inside.
AEGIS ISD was founded by healthcare program integrity professionals who spent years working with the disconnected tools, manual processes, and fragmented workflows that most SIU and compliance teams still rely on today.
We saw investigators toggling between five different systems to manage a single case. We saw medical reviewers emailing clinical attachments because the case management system could not store documents. We saw program directors building performance reports in spreadsheets because their platforms lacked analytics. We built AEGIS ISD to solve these problems — a single, unified platform where fraud detection, case management, medical review, recovery tracking, and analytics all share one case record.
Unlike legacy FWA platform vendors that have grown through acquisition and stitched together incompatible modules, AEGIS ISD was designed from day one as a unified system. Every feature shares the same data model, the same permissions framework, and the same audit trail.
The problem we solve
- Investigators waste time switching between disconnected tools
- Medical reviewers lack structured clinical documentation workflows
- Program leaders cannot see investigation performance in real time
- Legacy platforms require vendor professional services for every workflow change
- AI is bolted on as a separate layer, not embedded in investigation workflows
Founders
Meet the founders
AEGIS ISD was founded to bring healthcare program integrity domain expertise and modern technology together, delivering evidence-first fraud investigation outcomes for health plans and state agencies.
CEO & Co-founder
William Stewart
William Stewart, CEO of AEGIS ISD, has more than 20 years in the public and private sector fraud, waste, and abuse (FWA) space. He served as Deputy Chief of Staff for the Attorney General of Florida, overseeing the Medicaid Fraud Control Unit, and as Chairman of the Department of Homeland Security's seven Florida Intelligence Fusion Centers.
In the private sector he has served as Deputy Director of the Northrop Grumman Fraud Fusion Center, Executive Vice President at Pondera, Director of Fraud, Waste, and Abuse at TISTA, FWA Product Manager at Peraton, and most recently Vice President for FWA product services at Deloitte. He brings extensive experience in program management, FWA product design, and AI integration, along with an understanding of the links between public benefit program theft in the US and the funding of crime and terrorism domestically and around the world.
CTO & Co-founder
Muruganantham Mani
Muruganantham Mani, Co-founder and CTO of AEGIS ISD, brings more than 25 years of technology experience, over 20 of them in healthcare. He architected the modernization of the CMS Unified Case Management system used by Medicare and Medicaid program integrity contractors, and re-engineered the CMS Advanced Provider Screening platform.
Earlier, he designed and led Medicaid and Medicare claims adjudication systems at CNSI, including the State of Washington's ProviderOne Medicaid system (about 33 million claims a year) and the CMS Encounter Data Processing System (about 330 million encounters a year). He was also principal architect of DrFirst's Rcopia ePrescribing platform.
Our Values
Principles that guide how we build and deliver.
Evidence-First Decisions
Every investigation decision in AEGIS ISD is tied to structured evidence, documented clinical criteria, and auditable case history. We believe defensible outcomes start with evidence, not assumptions.
Operational Transparency
Program integrity teams deserve clear visibility into investigation performance, team workload, and program outcomes. AEGIS ISD provides real-time analytics because leadership decisions should not depend on spreadsheet reports.
Security Without Compromise
Healthcare fraud investigation involves protected health information, legal determinations, and regulatory obligations. AEGIS ISD embeds role-based access control, tenant-isolated data, and a complete audit trail into every feature by design — not as an afterthought.
Who We Serve
Healthcare organizations that investigate fraud, waste, and abuse.
AEGIS ISD serves the teams responsible for protecting healthcare program dollars across Medicaid, Medicare, and commercial health plans.
Medicaid Managed Care Plans
Program integrity and SIU teams at Medicaid managed care organizations investigating provider fraud, member eligibility issues, and medical necessity concerns.
Medicare Advantage Plans
SIU and compliance teams at Medicare Advantage plans managing fraud alerts, provider investigations, and CMS program integrity requirements.
Commercial Health Insurers
Fraud investigation and medical review teams at commercial health plans addressing provider billing fraud, pharmacy fraud, and behavioral health concerns.
State Medicaid Agencies
State program integrity divisions and Medicaid Fraud Control Units managing statewide fraud detection, provider surveillance, and recovery programs.
Special Investigations Units
SIU investigators and supervisors who manage healthcare fraud cases from initial alert through investigation, determination, and recovery.
Medical Review Teams
Clinical reviewers and medical directors who conduct medical necessity reviews, peer consultations, and clinical documentation assessments.
Why AEGIS ISD
Why healthcare organizations switch from legacy FWA platforms.
Organizations choose AEGIS ISD when they have outgrown the limitations of legacy fraud detection platforms or need to replace disconnected point solutions with a unified investigation workspace.
Four reasons teams switch
- Unified workspace — Replace five disconnected tools with one platform where detection, case management, medical review, recovery, and analytics share a single case record
- Embedded AI — AEGIS AI Assistant is built into every investigation screen with a 5-level graduated trust model, not bolted on as a separate analytics layer
- No-code configuration — Business users configure workflows, risk rules, queues, and approval paths without vendor professional services or custom development
- Tenant-isolated security — Schema-per-tenant database architecture provides stronger data isolation than shared-schema platforms used by most legacy vendors
Where we are
Based in Orlando, Florida.
AEGIS ISD, LLC operates its platform from the United States and serves Medicaid, Medicare, and commercial healthcare programs.
Office
AEGIS ISD, LLC5401 S. Kirkman Rd., Suite 310 PMB 3012
Orlando, FL 32819
United States
Phone: (321) 999-2389
Reach the right team
- Legal and contracts: legal@aegisisd.com
- Privacy: privacy@aegisisd.com
- Security: security@aegisisd.com
Connect
Ready to modernize your healthcare fraud detection program?
We will align your team on investigation workflows, data integration, and measurable program integrity outcomes.