Medical Director - Fractional

RDI
Los Angeles, CA

Why RDI

RDI operates a high complexity CLIA / CAP laboratory supporting clinical trials across the United States. Our reputation is built on medical credibility, regulatory integrity, and trust. As we continue to scale, experienced medical leadership is essential to ensure our work meets the highest clinical and regulatory standards.

This role offers the opportunity to contribute to meaningful, high impact diagnostics research without the demands of a full time operational position. Your expertise matters here, and your judgment carries real weight.

What We Do

RDI helps diagnostic and medical device companies achieve FDA clearance faster by running clinical trials with speed, precision, and accountability. We focus exclusively on diagnostics and medical devices, areas that have long been underserved in clinical research.

Our work supports innovators bringing critical tools to market and ultimately improves patient care by reducing unnecessary delays and inefficiencies.

Our Story

RDI is an overnight success years in the making.

We grew four times last year, but the foundation has been built over more than a decade. Founded in 2008 and professionalized in 2017 through a search fund acquisition, RDI was not built on venture burn. We are backed by long term operators and growth investors who believe in execution, discipline, and durability.

Over the past several years, we have expanded by doing the hard things right. We built real infrastructure, earned trust from enterprise customers, and delivered consistent results in a space dominated by large, slow incumbents.

No one has successfully built and scaled a modern CRO focused on diagnostics and medical devices in over fifteen years. The industry has been optimized for pharma, not speed, not precision, and not accountability.

RDI is the exception.

About the Role

As Medical Director, you provide medical and regulatory oversight for RDI’s CLIA laboratory and clinical trial activities. You are the medical authority behind the work, ensuring compliance with CLIA, CAP, and all applicable regulatory requirements.

You will partner closely with the Head of Science and the Operations team, offering guidance, review, and sign off where medical judgment is required. This is a focused, respected role designed for an experienced physician or scientist who values impact, integrity, and thoughtful collaboration.

What You Will Do

  • Serve as Medical Director for RDI’s high complexity CLIA laboratory
  • Ensure ongoing compliance with CLIA, CAP, and applicable state and federal regulations
  • Support audits, inspections, and regulatory interactions
  • Review and sign off on clinical protocols, reports, and laboratory documentation
  • Provide medical guidance on test utilization, quality, and clinical validity
  • Act as a trusted medical advisor to the scientific and operations teams

Requirements

Who You Are

  • You hold an MD or PhD and have served in a Medical Director or equivalent leadership role
  • You have direct experience overseeing CLIA and CAP accredited laboratories
  • You are eligible for California CAP certification and able to serve as Medical Director under California regulations
  • You are confident engaging with regulators, inspectors, and auditors
  • You communicate clearly, thoughtfully, and with credibility
Posted 2026-01-30

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