Delegated access is a design problem
Caregivers are not patients with someone else's login. Designing for them means designing identity, consent and audit as first-class features.
A growing share of healthcare is navigated by someone other than the patient: an adult child managing a parent's dementia care, a spouse coordinating cancer treatment, a neighbor driving to appointments. The technology they are offered is almost always the patient's own portal with the password shared, which is bad for security, bad for privacy and useless for the clinician who cannot tell who is on the other end.
The problem is that "caregiver access" is three different things, and systems that do not distinguish them get all three wrong. Delegating access lets a trusted person act within the patient's account under the patient's identity. Sharing lets the patient hand a specific record to a specific person for a specific purpose. Acting as a personal representative is a legal status with its own rules, where the representative's identity, not the patient's, is what matters. Each has a different identity requirement, a different consent model and a different audit trail.
The building blocks already exist
None of this requires invention. Identity assurance standards define how confidently a person has been proven to be who they claim, and commercial credential providers can deliver that proof at the levels federal programs now expect. Standard clinical data models can represent a caregiver, the relationship to the patient and the consent that governs it as structured data rather than a checkbox. Verifiable health summaries can be shared at the point of care in a form that is both readable and tamper-evident. And every disclosure can be logged as a standard audit record that privacy officers, auditors and families can all read.
What is missing in most organizations is the decision to treat delegation as its own use case, with its own requirements, rather than an afterthought bolted onto patient login. Once that decision is made, the architecture follows: proofing at enrollment, a consented relationship as data, scoped access that follows the relationship, and an audit trail that follows everything.
Why it matters now
Care-management programs for complex and aging populations increasingly expect caregiver participation and in some cases pay for it. Interoperability rules are extending patient data access to the applications patients and caregivers choose. Organizations that design delegated access well will find it is a differentiator with families and a relief for compliance teams. Organizations that do not will keep sharing passwords and hoping.