Clinical AI Engine
AI-powered clinical validation.
Every inference logged. Every prompt configurable.
Every inference logged. Every prompt configurable. Every decision auditable. 5 clinical AI capabilities in production — designed by clinicians, governed by your team.
The NexusLedge AI Stack
5 clinical AI capabilities. All configurable.
Every AI feature is gated by an Op Control. PBMs enable AI on their timeline, at their comfort level.
3-Tier Clinical Assessment
Mirrors how pharmacists actually review a PA: scan documents first, evaluate each clinical question against criteria, then make a holistic judgment. Three layers of analysis run simultaneously for speed.
Clinical Decision Support
Clinical AI Chat
Conversational assistant that helps clinicians during review, grounded in the PA request context and clinical documents. Ask questions, explore clinical rationale, validate findings.
Clinician Workflow
Protocol Reference Analyzer
Automatically analyzes clinical protocol documents when activated, structuring criteria and requirements so downstream assessments are faster and more consistent.
Clinical Intelligence
Configurable Prompt Registry
Every AI prompt is stored as an operational control. PBMs customize assessment behavior at runtime without engineering tickets or redeployment.
PBM Control
AI Operations Dashboard
Monitor AI performance across your organization: usage, accuracy, cost, and response times per capability. Full transparency into how AI supports your clinical team.
Visibility & Governance
Configurable Intelligence
Your clinicians tune the AI. Ours designed it.
5
Clinician-Tunable Prompts
Your clinical team modifies assessment behavior via the admin panel. No engineering tickets. No waiting for releases.
3
Assessment Tiers
Document review, clinical question evaluation, and holistic judgment — the same layers a pharmacist uses, running simultaneously.
100%
Auditable
Every AI action logged with full context. Complete audit trail for compliance and clinical accountability.
Clinical Authority
Clinician-Designed AI Prompts
The 5 AI prompts powering NexusLedge's clinical assessment were authored by clinicians with deep PA review experience — grounded in clinical reasoning patterns from years of hands-on practice. Each prompt reflects how an experienced pharmacist evaluates prior authorization requests. PBMs can modify these prompts via Op Controls, but the defaults already work because they encode the clinical reasoning patterns of pharmacists who have done the review thousands of times.
"We built the 3-tier assessment to mirror how pharmacists actually review a PA: scan the documents first, evaluate each clinical question against criteria, then step back and make a holistic judgment. That's how pharmacists think. The AI follows the same pattern."
The Core Distinction
Attestation vs. Validation
The gap between these two words is where clinical errors, audit findings, and inappropriate approvals live.
How most PA systems work
Attestation
A prescriber fills out a form. The system records their answers. “Has the patient failed first-line therapy?” Check yes. Move on. The determination is based on what the prescriber said happened.
The result:
No verification. No cross-reference. If the prescriber’s answer doesn’t match reality, nobody catches it until an audit.
How NexusLedge works
Validation
The AI checks the prescriber’s answers against the patient’s actual data — claims history, diagnosis codes, fill records, step therapy completion. The determination is based on what the evidence shows.
The result:
Every clinical criterion verified before the pharmacist reviews. Discrepancies flagged with confidence scores. Audit-ready from the start.
Why it matters
A prescriber requests a GLP-1 like Ozempic and attests the patient failed metformin. The claims data shows no metformin fill in the last 12 months. An attestation-based system records the answer and moves on. A validation-based system flags the discrepancy before the pharmacist even opens the case. That’s the difference between processing a PA and getting the clinical decision right.
Responsible AI
Human-in-the-loop. Always.
- 01 AI assessments are advisory. Clinicians make every determination decision.
- 02 No autonomous approvals or denials. AI scores inform, never decide.
- 03 Full audit trail: every AI input, output, and clinician action is recorded.
- 04 PBMs control which AI features are active via Op Controls. Enable on your timeline.
- 05 Enterprise-grade AI infrastructure — built for safety-critical healthcare applications.
Related
Automation powered by AI
The AI capabilities on this page power NexusLedge's 12-stage automation pipeline. Document intelligence, inbound processing, and OCR run as automated stages — no human intervention required.
Explore the Automation PipelineSee AI-powered clinical validation in action
Request a demo to see how the 3-tier assessment pipeline works with your clinical protocols.
See the Platform