Palo Alto Health Labs
Service · Diligence

Technical Due Diligence for Digital Health

An independent, senior read of a digital health product for investors, acquirers, and enterprise partners: architecture, code quality, security and HIPAA posture, regulatory position, data assets, and team, in a report you can act on.

In short: Palo Alto Health Labs, led by Mike Hittle, PhD, provides digital health technical due diligence. An independent, senior read of a digital health product for investors, acquirers, and enterprise partners: architecture, code quality, security and HIPAA posture, regulatory position, data assets, and team, in a report you can act on. For this service, the format is fixed-scope review, typically 2–3 weeks, delivered as risk-rated report and a call.

Format
Fixed-scope review
Typical length
2–3 weeks
Delivered as
Risk-rated report and a call
Best for
Investors, acquirers, partners

Who is digital health technical due diligence for?

Seed-to-Series-B investors, acquirers, and health systems or pharma groups evaluating a vendor. We also run sell-side diligence for founders who want to find the issues before their investors do. The reviewer has built and shipped regulated clinical software, so the findings are grounded in what it takes to fix them.

What does digital health technical due diligence include?

How does a digital health technical due diligence engagement run?

  1. ScopeConfirm the questions the deal needs answered and the access available.
  2. ReviewDocumentation, repository and infrastructure access, and interviews with the technical team.
  3. ReportRisk-rated findings with evidence and remediation estimates.
  4. CallA readout with the investment or deal team, and follow-up questions for two weeks.

Digital health technical diligence scorecard

We score each target across seven areas. Each one has evidence we request up front and clear red and green flags, so investment committees get a consistent read across deals. (Founders preparing for diligence should start with our digital health readiness checklist.)

AreaWhat we checkEvidence we requestRed flagGreen flag
Architecture and scalabilityService boundaries, data model, hosting, load and cost curve, single points of failureArchitecture diagram, cloud bill, incident log, load-test resultsA demo stack that has never carried production loadDocumented architecture that already runs at several times current volume
Security and HIPAA postureRisk analysis, BAAs, access control, encryption, logging, breach historyHIPAA risk analysis, BAA list, pen-test report, SOC 2 or HITRUST report if anyNo written risk analysis, or PHI with vendors that have no BAAA current risk analysis, a clean pen test with fixes closed, and BAAs in place
Regulatory and FDA statusWhether the product is a device, which features are cleared, whether marketing matches the clearanceRegulatory strategy memo, 510(k) or De Novo numbers, FDA correspondence, claims in sales materialDiagnostic or treatment claims with no clearance or wellness rationaleClaims that match a listed clearance or a documented wellness or CDS position
Data rights and interoperabilityWho owns the data, what consents allow, EHR integrations, export formatsData-use agreements, consent forms, integration list, API docsTraining data the company has no clear right to useConsents and contracts that cover the planned uses, with standard FHIR or HL7 integrations
Clinical evidenceWhether the evidence supports the claims buyers are paying forValidation studies, publications, real-world performance dataAccuracy numbers from internal data only, with no external validationProspective or external validation in the intended population
AI/ML validationTraining and test separation, reference standards, subgroup performance, monitoring and change controlModel cards, evaluation reports, data lineage, retraining planTest sets drawn from the training data, or no monitoring after launchIndependent test sets, subgroup results and a written plan for model changes
Team and deliveryWho holds the critical knowledge, release process, technical debtOrg chart, release history, backlog, key-person listOne engineer who alone can deploy or understands the core systemDocumented processes, code review and more than one owner per critical system

Top 10 red flags in digital health technical diligence

  1. Marketing claims that outrun the FDA status. Check every diagnostic or treatment claim against FDA's 510(k) and De Novo databases and the company's establishment registration and device listing.
  2. No written HIPAA risk analysis, or one that predates the current architecture.
  3. PHI flowing to vendors without a BAA, including analytics, logging and AI model providers.
  4. A breach history not disclosed in the data room. Large breaches are public on HHS's breach portal.
  5. Claimed EHR certification that does not appear in ONC's Certified Health IT Product List, or integrations that are one-off scripts.
  6. Data practices that may raise information blocking questions for a company that is a certified health IT developer or health information network.
  7. No software bill of materials or cybersecurity documentation for a connected device. FDA's premarket cybersecurity guidance expects them for cyber devices.
  8. AI accuracy reported only on data the model was trained on, with no independent test set or subgroup results.
  9. Unclear rights to the training data, such as clinical data licensed for care but not for product development.
  10. Key-person risk: one engineer or contractor who alone can deploy, or who owns the code and infrastructure accounts.

Data-room request list

What we ask for in the first week. Having it ready shortens diligence and signals maturity.

Frequently asked questions about digital health technical due diligence

Do you do sell-side diligence?

Yes. Founders often engage us before a raise to find and fix issues on their own terms. The deliverable is the same report, addressed to you.

How much access do you need?

Read-only access to repositories and cloud consoles, existing documentation, and two to four interviews. We never need production patient data and work under NDA.

How is this different from your Initial Audit?

The Initial Audit is for the company itself and ends in a remediation roadmap the team executes. Due diligence is for a third party and ends in a risk-rated opinion for a decision. The review is similar; the audience and the deliverable differ.

What do you look at in technical due diligence for a digital health company?

We score seven areas: architecture and scalability, security and HIPAA posture, regulatory and FDA status, data rights and interoperability, clinical evidence, AI/ML validation, and team and delivery. Each has evidence we request and defined red and green flags.

How do you verify a target's FDA status?

We check every product claim against FDA's public 510(k), De Novo and establishment registration and listing databases, then compare the cleared indications with what the company actually markets. Mismatches between claims and clearances are one of the most common findings.

What should a digital health company put in its data room for tech diligence?

An architecture and PHI data-flow diagram, HIPAA risk analysis and BAA list, recent penetration test, any SOC 2 or HITRUST report, FDA submission numbers and correspondence, data-use agreements and consents, validation and AI evaluation reports, an incident log, and read-only code access.

Related services

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