Hay Hill Advisors grew out of nearly three decades of experience navigating federal research billing investigations for hospitals and medical schools. Along the way, our team built the Coverage Analysis — the methodology that became the industry standard for research-billing compliance. That frontline experience also revealed a critical gap: clinical research teams and revenue-cycle teams rarely speak the same language. We bridge that gap by turning regulatory insight into actionable strategies that protect against overpayments, ensure compliant billing, and recover the research revenue your institution has earned.
Discipline, independence, and a payment-first lens that sets us apart.
Disciplined revenue-cycle support that strengthens your bottom line during clinical research — with compliance built into every step. We give research hospitals and academic medical centers a single partner for both.
We work exclusively for research sites. That single-sided commitment eliminates conflicts of interest and ensures every recommendation serves your institution's compliance posture and financial health.
Our approach is built on an insight most overlook: insurance coverage does not guarantee payment. With deep expertise in claims processing, we pinpoint where payment falls short — and help you close those gaps.
An integrated suite designed to work independently or as a seamless engagement.
Translates payer rules into a budgeting tool that maximizes revenue.
Audit-ready billing guides for airtight compliance.
Uses real payment data to secure stronger sponsor funding.
Catches billing errors and compliance exposure before they become denials.
Streamlines invoicing and collections to capture every dollar owed.
Accelerates cash flow by proactively managing outstanding sponsor balances.
Compliance, revenue, and operations — connected from the start.
See Full Service DetailsWe apply the regulatory expertise and payment methodology we pioneered to empower research sites — mitigating risk, leveling the playing field with commercial sponsors, and aligning operations to ensure every dollar is captured.