Patient Voice Agents
H

Hippocratic AI

Safety focused patient facing voice agents for non diagnostic clinical work: post discharge follow up, medication adherence, preoperative instructions, chronic care check ins, and screening outreach, conducted by voice and text in more than 20 languages. Built on the Polaris constellation architecture, in which specialist support agents for privacy, checklists, and medication safety back the primary conversation agent and can end a non compliant conversation. Agents are barred from diagnosis and prescribing, escalate to humans when clinical judgment is required, and pass a certification pipeline that includes simulated call testing by thousands of nurses and physicians. More than 300 prebuilt agents across 25 specialties; the company reports over 115 million clinical patient interactions and 50 plus health system, payer, and pharma partners.

Last VerifiedJuly 6, 2026
Founded
2023
Headquarters
Palo Alto, California
Categories
patient-facing-voice-agents
Assessment

Capability Axes

AI Capability
AI Centrality
A
Vendor Published

The product is the AI agent; customers buy agent conversations by the hour.

Autonomy and Oversight Model
A
Vendor Published

Agents barred from diagnosis and prescribing; escalation to humans when clinical judgment is required; constellation support agents can end non compliant conversations; certification pipeline includes simulated call testing by thousands of nurses and physicians plus customer sign off.

Model and Technology Transparency
A
Vendor Published

Polaris constellation architecture publicly documented, including design rationale and published safety research.

Clinical and Operational Evidence
B
Vendor Published

Published safety research with stated methodology on the Polaris constellation architecture, which is genuine technical evidence and rare in this lane. Operational scale is substantial and consistently reported (2.5 million patient calls rising to a reported 10 million, 8.95 out of 10 patient satisfaction, a reported 99.9 percent safety score). Held back from A because the clinical outcome claims published across use cases (30 percent readmission reduction, 360 percent chronic care capacity increase) are vendor reported without methodology, cohort sizes, or comparison groups, and have not been independently validated.

AI Safety and PHI Stewardship
A
Vendor Published

Safety is the product thesis, not a disclosure afterthought. The Polaris constellation architecture deploys more than 25 task specific models with a dedicated safety focus, agents are restricted to non diagnostic patient facing tasks by design, every clinician authored script is safety tested before release, and the company publishes a safety score across its call volume. Combined with HITRUST e1 covering PHI controls, the stewardship posture is evidenced rather than asserted.

Regulatory and Compliance
HIPAA and BAA Posture
B
Vendor Published

HITRUST e1 certification covers the 44 most critical security controls and is the healthcare specific framework built to evidence HIPAA safeguards, which is materially stronger than an unevidenced HIPAA alignment claim. Held back from A because BAA availability and execution terms are not published on the vendor's own site; a buyer must confirm BAA specifics in procurement.

Security Certifications and Trust Center
A
Vendor Published

The strongest certification posture in the index. SOC 2 Type II examination completed and issued by an independent AICPA accredited auditor over a multi month observation period (announced August 2025), on top of HITRUST e1 Certification covering the full agentic platform (announced July 2025), which the HITRUST Alliance publicly confirmed. Two independent third party validations, both named and dated, and the company employs a named Chief Information Security Officer. This is what an A looks like on this axis.

FDA and Regulatory Status
Not rated
AI Governance and Bias Disclosure
B
Vendor Published

Substantive governance structure: a stated Do No Harm principle enforced through a rule that agents are only built where the company believes generative AI can operate safely, clinician validated script review, and a published safety score. Held back from A because no bias or fairness evaluation with stated methodology and no third party AI audit were retrieved, which is the specific evidence this axis is looking for.

Integration and Deployment
EHR and Interoperability Depth
Not rated
Deployment Model and Data Residency
Not rated
Commercial
Commercial Transparency
A
Vendor Published

Headline rate of $9 per agent hour published, with usage based billing terms described.

Setting and Specialty Coverage
A
Vendor Published

More than 300 prebuilt agents across 25 specialties, use cases explicitly enumerated.

Commercial

Pricing

Vendor-published figures are labeled as such. Figures labeled “Estimated” are derived from third-party sources and have not been confirmed by the vendor.

Entry Price Pricing Basis BAA Tier Implementation Source
$9 per agent hour
$9 baseline
Usage based, per active agent hour Vendor Published

Vendor published headline rate, marketed against a US registered nurse median near $39 per hour. Billed for active agent time only; a full time agent runs about $6,480 per month, and usage based billing scales with call volume. Enterprise deployments are structured around agent hours or covered patients under custom contracts.

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Index Status
Last index update
July 19, 2026
The AI Health Index is an editorial reference, not a regulatory body. Vendor data is verified against published sources and public regulatory filings. Figures labeled “Estimated” have not been confirmed by the vendor. See the Methodology page for evaluation standards and limitations.
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