4140 Parker Ave, St. Louis, MO 63116


Clinical Integrity. Technological Precision. Proven Results.

Nexus is a national leader in clinical and specialty review services, combining medical expertise with advanced technology to deliver accurate, defensible, and timely decisions that support better outcomes for all stakeholders. With decades of industry experience, our team brings together board-certified physicians, legal experts, and healthcare professionals to ensure the highest standards of quality and compliance.

We specialize in services that span the healthcare, workers’ compensation, disability, auto liability, and government sectors—supporting insurers, TPAs, employers, and managed care organizations. Our clinical-first approach is grounded in evidence-based guidelines, transparent workflows, and seamless technology integration, empowering clients to make confident decisions that are both cost-effective and patient-centered.

Clinical Integrity. Technological Precision. Proven Results.

Our Mission

To improve the quality of life for everyone we serve. We deliver unbiased, clinically sound, and defensible medical review services through innovation, collaboration, and an unwavering commitment to quality.

What Sets Us Apart

Clinical Excellence

Clinical
Excellence

Every Nexus review is backed by experienced, board-certified professionals who adhere to nationally recognized guidelines and evidence-based standards.

Technology-Driven Workflows

Technology-Driven
Workflows

Our proprietary platform streamlines the review process with efficiency, accuracy, and full transparency—delivering results faster without compromising quality.

Client-Centric Service

Client-Centric
Service

We prioritize responsiveness, communication, and customization to align with each client’s unique needs, regulatory requirements, and operational goals.

National Reach, Local Understanding

National Reach,
Local Understanding

With a network of licensed physicians and legal experts across all 50 states, Nexus provides regionally informed insights with national consistency.

Leadership Committed to Innovation

Our leadership team brings deep domain knowledge in healthcare, insurance, compliance, and operations. With decades of experience at the intersection of medicine and claims management, the team is focused on delivering innovation and integrity across all aspects of service. Their commitment to continuous improvement and collaboration drives Nexus’ success in an evolving regulatory and medical landscape.

Leadership Committed to Innovation

Meet Our Leadership Team

Nexus is still led by its founders, with the same vision and culture that have powered success for our clients and growth for our company and our team members.

Ed Bolton

Ed Bolton

CEO

Aubrey Longacre

Aubrey Longacre

COO

Courtney Atkinson

Courtney Atkinson

CPO

Martin Vela Jr.

Martin Vela Jr.

CFO

Rich Leonardo

Rich Leonardo

CRO

Cris Ewell

Cris Ewell

CTSO

Rachel Beavers

Rachel Beavers

SVP Compliance

Elizabeth Mills

Elizabeth Mills

VP Operations

Shannon Crowe

Shannon Crowe

VP Medical Management

Join Us

We’re passionate about building a smarter, more effective medical management industry—where clinical expertise and technology work hand-in-hand. Follow us on LinkedIn, Facebook, or explore our careers page to learn more about joining our growing team of experts.