Apex Health Systems

Organizational Overview & Mandate

Multi-hospital clinical health network enforcing client-side de-identification across clinician AI summarization tools, eliminating PHI exposure under HIPAA Safe Harbor.

As part of the ZTDS verified ecosystem, Apex Health Systems enforces hardware-isolated and in-memory reversible tokenization to eliminate external cloud intermediary leaks before outgoing prompts reach foundation models.

Certified Compliance Scope

Mandatory zero-trust RAM de-identification of 18 HIPAA Safe Harbor identifiers on all clinical workstations.

• Invariant 1 (Zero WAN Egress): High-risk corporate identifiers and domain entities are masked in local RAM prior to WAN transmission.
• Invariant 2 (Deterministic Tokenization): Syntactic surrogate tokens maintain prompt context for LLMs while private mapping tables remain strictly in volatile memory.
• Invariant 4 (Zero Subprocessor Chain): Eliminates third-party cloud proxy servers and excludes vendor sub-processor liability under GDPR Article 28.

$180,000 Annual Savings in Cloud BAA Fees with Zero PHI Exposure

import { ZTDSEngine } from '@privacyscrubber/sdk';

// HIPAA Safe Harbor 45 CFR § 164.514(b) de-identification
const ztds = new ZTDSEngine({
  profile: 'hipaa_safe_harbor_18',
  maskDates: true,
  maskZipCodes: true
});

// Clinician discharge summary masked before API dispatch
const { sanitizedPrompt, sessionMap } = ztds.sanitize(rawClinicalNotes);
const aiSummary = await llm.complete({ prompt: sanitizedPrompt });

// Rehydrate in clinician browser view only
const clinicianReport = ztds.rehydrate(aiSummary, sessionMap);