How should healthcare organisations modernize identity governance when homegrown access systems can no longer keep pace with growth and regulation?

Why This Matters for Security Teams

Homegrown access systems often work until they meet the realities of healthcare scale: mergers, new clinics, SaaS adoption, contractor access, and audit demands that do not tolerate inconsistent approvals. The core problem is not just administration overhead. It is that access governance becomes fragmented across applications, teams, and exceptions, which makes it harder to prove least privilege, trace who approved what, and revoke access quickly when roles change.

That fragility is especially risky where secrets, service accounts, and API keys support clinical workflows and integrations. NHI Management Group has found that only 5.7% of organisations have full visibility into their service accounts in its Ultimate Guide to NHIs, which helps explain why manual processes fail as environments grow. The question is no longer whether access can be approved. It is whether it can be governed consistently enough to satisfy NIST Cybersecurity Framework 2.0 and healthcare audit expectations.

In practice, many security teams encounter entitlement sprawl only after an audit finding, a merger integration, or a delayed deprovisioning event has already created exposure.

How It Works in Practice

Modernizing identity governance usually means moving from application-by-application exception handling to a centralized model that can orchestrate joiner, mover, and leaver workflows across the estate. For healthcare organisations, that should include role-based access where it makes sense, but also tighter control over non-human identities, because automation accounts and integrations often outlive the human roles that created them. The most effective programs treat governance as an operational control plane, not a periodic review exercise.

A practical approach is to define authoritative sources for identity, map entitlements to business roles, and automate approvals, recertification, and revocation. This reduces reliance on spreadsheets and ticket queues. It also aligns better with guidance in the OWASP Non-Human Identity Top 10, which emphasizes the risks of over-privileged and poorly managed machine identities. For regulated healthcare, that governance should include:

• centralised entitlement catalogues for applications and platforms
• automated provisioning and deprovisioning tied to HR and vendor events
• periodic access recertification with evidence capture for auditors
• separate controls for service accounts, API keys, and delegated access
• rotation and revocation workflows for secrets used by integrations

NHI Management Group’s Lifecycle Processes for Managing NHIs is useful here because it frames identity as a lifecycle problem, not a one-time access grant. In healthcare, that lifecycle view matters when applications span EHRs, billing, labs, third-party telehealth tools, and outsourced operations. These controls tend to break down when organisations still depend on custom workflows for every app because exceptions accumulate faster than governance teams can review them.

Common Variations and Edge Cases

Tighter governance often increases implementation overhead, requiring organisations to balance auditability against integration cost and change-management friction. That tradeoff is real in healthcare, especially where legacy clinical systems cannot support modern provisioning APIs or where patient-care uptime limits maintenance windows. In those environments, current guidance suggests starting with the highest-risk entitlements first, rather than trying to replace every local workflow at once.

Some organisations also need a hybrid model. Core workforce identities may be governed centrally, while certain departmental or acquired applications remain on temporary controls until they can be onboarded. Best practice is evolving for these cases, but the standard should still be the same: every exception needs an owner, a reason, a review date, and a path to retirement. The same applies to machine access, where long-lived credentials should be replaced with shorter-lived secrets and clear rotation responsibility.

For organisations mapping controls to formal programs, Ultimate Guide to NHIs — Regulatory and Audit Perspectives helps connect governance design to evidence and accountability. The main edge case is acquired environments with incompatible identity stacks, because duplicated directories and inherited entitlements can make even a well-designed central model appear inconsistent until rationalisation is complete.

Related resources from NHI Mgmt Group

• Why do organisations move identity governance from on premises systems to cloud platforms?
• How should organisations scope an identity and access governance programme before they start implementation?
• How should organisations implement identity and access governance in cloud and remote work environments?
• Why does identity governance matter when workers and access needs keep changing?