Web App Development
Healthcare Web App Development Built for Compliance and Clinical Use
We build HIPAA-conscious healthcare web apps — patient portals, provider dashboards, telehealth platforms, and clinical workflow tools — with security and usability treated as equals.
The Unique Challenges of Healthcare Web App Development
Healthcare web app development operates under a regulatory burden that no other vertical matches. HIPAA is not a checkbox — a breach is a $100,000–$1.9M fine, potential criminal liability, and irreversible damage to patient trust. Most development agencies treat HIPAA compliance as a documentation exercise. We treat it as an engineering constraint that shapes every architectural decision: where patient data is stored, how it is encrypted at rest and in transit, who can access it and when, and how the audit log captures every data access event.
Patient-facing healthcare apps must balance security with usability in a way that few product categories demand. Elderly patients cannot navigate 12-step authentication flows. Clinicians on a 30-second patient intake cannot wait for slow-loading dashboards. We build healthcare web apps that are genuinely secure without being genuinely painful to use — a balance that requires careful UX research into clinical workflows, not just technical compliance implementation and a permission structure that satisfies your legal counsel.
EHR integrations are where most healthcare web app development projects stall. HL7 FHIR, proprietary vendor APIs, and legacy systems that predate the internet turn 4-week projects into 4-month ones. We have integrated with Epic, Athenahealth, and generic FHIR R4 endpoints. We assess integration complexity before scoping — and we tell you honestly when a Business Associate Agreement and a dedicated integration sprint are necessary to build on a reliable foundation.
Our Approach to Healthcare web app development
Every project follows our 4-step vibe-coding process — AI handles the boilerplate, senior engineers handle the craft. From idea to live product in 3–7 days for MVPs.
Discovery
We map clinical workflows before touching a keyboard. Who uses this system — patients, providers, administrators, billing staff? What data does each role see and modify? What are the HIPAA-relevant data points? These answers define the role-based access model and the audit logging requirements before we discuss any features.
Design
Healthcare UX is a specialized discipline. We design patient-facing flows with accessibility in mind — large text options, simple language, minimal friction for appointment booking and form completion. Provider dashboards are designed for information density and keyboard-navigable workflows. We validate clinical flows with real user feedback before coding.
Build
Supabase PostgreSQL with encrypted PHI columns and Row Level Security for access control, HTTPS everywhere with HSTS headers, audit log tables for every data access event, and role-based API authorization at the middleware layer. Our engineers review every data access pattern for HIPAA-relevant risks before features ship.
Launch
Pre-launch security review: penetration testing on critical endpoints, dependency audit for known CVEs, data at rest encryption verified, audit log completeness tested. We do not launch healthcare web apps without a documented security review. The Business Associate Agreement between Greta and your organization is signed before any PHI enters the development environment.
What You Get
Every healthcare web app development engagement includes these deliverables — scoped before we start, delivered before we invoice.
- Patient portal with appointment booking, medical history viewing, and secure messaging
- Provider dashboard with patient list, clinical notes editor, and schedule management
- Role-based access control: patient, provider, administrator, and billing staff roles
- Audit logging for every PHI access event — readable by compliance officers
- Encrypted data storage for Protected Health Information fields in PostgreSQL
- HIPAA-conscious authentication: MFA required, session timeout configurable per role
- Secure patient-provider messaging with end-to-end encryption
- Appointment reminder system via email and SMS with opt-out compliance
- Integration with FHIR R4 endpoints for EHR data reads (Epic, Athenahealth scope dependent)
- Vercel deployment with environment isolation and access logs retained for audit purposes
Tech Stack We Use
Healthcare web app development at Greta uses the same core stack — Next.js 15, Supabase PostgreSQL, TypeScript, Vercel — with healthcare-specific security configuration layered throughout. Supabase's built-in Row Level Security enforces access control at the database level, not just the application layer. We enable encrypted columns for PHI fields using Supabase Vault, configure HSTS and CSP headers in Next.js middleware, and implement audit logging via PostgreSQL triggers that write to a tamper-evident log table. For telehealth features, we integrate with HIPAA-eligible video infrastructure. Every third-party service we use in healthcare projects must execute a Business Associate Agreement before receiving any PHI.
Case Study
SEO Pilot — Rapid Delivery Under Tight Requirements
While SEO Pilot is not a healthcare product, it demonstrates our ability to deliver production-quality software rapidly under strict requirements — a capability that directly applies to healthcare web app development. We shipped a fully functional SaaS with user authentication, multi-step workflows, data persistence, and Stripe subscription billing in 4 days. Healthcare clients value this delivery speed because slow development cycles in regulated industries mean longer periods of manual, error-prone workflows. Our sprint cadence and code quality standards — documented codebase, review-gated merges, staged deployment — apply equally to healthcare as to SaaS.
Read full case studyPricing Transparency
Healthcare web app development starts at $8,000 for patient or provider-facing portals — higher than our standard floor due to the security review, HIPAA-conscious architecture, and BAA overhead. Full clinical workflow systems with EHR integration, complex role hierarchies, and telehealth features run $20,000–$60,000. All healthcare projects include an architecture security review, HIPAA-conscious data handling documentation, and BAA signature from Greta before any PHI is processed. Code ownership transfers fully at project completion.
MVP
From $5,000
3–7 business days
Full Build
From $15,000
2–4 weeks
All projects include full code ownership, two revision rounds, Vercel deployment, and one week of post-launch support. No hidden fees.
Frequently Asked Questions
Is Greta Agency HIPAA compliant?
We sign Business Associate Agreements before any Protected Health Information enters our development environment. We implement HIPAA-conscious technical safeguards in every healthcare web app: encryption at rest, encryption in transit, audit logging, and access control. We are not a covered entity — we are a business associate, and we take that responsibility seriously.
Can you integrate with Epic or Athenahealth?
Yes, with scope caveats. Epic's FHIR R4 API is publicly accessible for patient-facing apps through their App Orchard program. Athenahealth has its own API program. Both require separate agreements with the EHR vendor. We assess API availability, data scope, and rate limits during discovery and price the integration separately from core development.
How do you handle patient data during development?
We use synthetic test data during development — never real PHI. When production data is needed for testing, we work in an isolated environment that is covered under the BAA and use the minimum necessary PHI for the specific test case. Real patient data never enters our laptops or local development environments.
Do you offer ongoing HIPAA-compliant hosting?
We configure Vercel, which is a HIPAA-eligible platform when used with appropriate data handling practices. We do not provide ongoing hosting management, but we document the hosting configuration in detail so your team or a managed hosting provider can maintain it. We can also scope ongoing infrastructure support as a retainer.
Can you build telehealth video features?
Yes, using HIPAA-eligible video infrastructure such as Daily.co or Twilio Video, both of which offer BAAs. We do not build custom video encoding — we integrate with established HIPAA-eligible platforms and build the scheduling, waiting room, and clinical notes features around them.
How long does healthcare web app development take?
Patient portals and simple provider dashboards take 2–3 weeks due to the additional security review steps. Systems with EHR integration, complex role hierarchies, or telehealth features take 4–8 weeks. Healthcare timelines are longer than standard web apps because we do not cut corners on security review.
Can patients use the app on mobile?
Yes. We build healthcare web apps as responsive, mobile-first experiences. Patients can access portals from any device without downloading an app. For features that benefit from native capabilities (camera for telehealth, biometric auth), we can scope a progressive web app wrapper that installs to the home screen.
What happens if there is a security incident after launch?
We include one week of post-launch support with priority response on security-related issues. After that period, security incidents require a support engagement. We also document an incident response runbook as part of the project deliverables — so your team knows exactly what to do if a breach is suspected, whether or not Greta is available.
Ready to ship?
Ready to build your healthcare web app?
Start Your ProjectOr reach us directly at hello@greta.agency
Written by the Greta Agency team · Last updated April 2025