# quadevs > Independent dev studio, est. 2016. Production software for healthcare integration (FHIR R4, TEFCA, USCDI, HEDIS), LLM agents that run in production, clinical document pipelines, and the operational platforms that hold a business together. Direct contracts, work under your BAA. The engineer you talk to is the engineer who ships it. ## Services - [GEO and AI search](https://quadevs.com/geo/): crawler access, source clarity, business information, citation checks and AI referral measurement - [SEO services](https://quadevs.com/seo/): technical audits and implementation, indexing, performance, structured data, content structure and search reporting - [Healthcare integration](https://quadevs.com/healthcare/): HEDIS pipelines, FHIR/TEFCA/USCDI integrations, clinical document processing, HIPAA-aware engineering - [AI agents](https://quadevs.com/ai-agents/): production-grade LLM agents, tool use, vendor-agnostic - [Web development](https://quadevs.com/web-development/): platforms, storefronts, internal tools - [Shopify development](https://quadevs.com/shopify-development/): storefronts and custom apps - [WordPress development](https://quadevs.com/wordpress-development/): builds and fleet maintenance - [Social media marketing](https://quadevs.com/social-media-marketing/): content production systems - [Paid advertising](https://quadevs.com/paid-advertising/): performance campaigns ## Insights - [TEFCA vs FHIR](https://quadevs.com/insights/tefca-vs-fhir/): the trust framework vs the API standard, and what you build for each - [USCDI and FHIR](https://quadevs.com/insights/uscdi-and-fhir/): data classes, US Core profiles, and where builds go wrong - [FHIR AuditEvent](https://quadevs.com/insights/fhir-auditevent/): an audit trail that survives info-blocking review - [Clinical data aggregation](https://quadevs.com/insights/clinical-data-aggregation/): the hub pattern and its failure modes - [Clinical data warehouse](https://quadevs.com/insights/clinical-data-warehouse/): history, idempotent ETL, forward-only migrations - [Medical document OCR pipeline](https://quadevs.com/insights/medical-document-ocr-pipeline/): capture to clinical record, stage by stage - [OCR fallback and barcodes](https://quadevs.com/insights/ocr-fallback-and-barcodes/): confidence routing for unreadable documents - [HEDIS automation](https://quadevs.com/insights/hedis-data-pipeline/): a measurement pipeline auditors can reproduce - [Healthcare schema markup](https://quadevs.com/insights/healthcare-schema-markup/): structured data that earns rich results ## Cases - [All case studies](https://quadevs.com/cases/): the portfolio, with 33 case studies and 3 studio startups - [FHIR R4 · TEFCA · USCDI platform](https://quadevs.com/case/fhir-tefca-uscdi/): 42 resources, SMART v2.1, passed info-blocking review without remediation - [HEDIS measurement pipeline](https://quadevs.com/case/hedis-pipeline/): reproducible measures from raw inputs - [Clinical data warehouse](https://quadevs.com/case/clinical-data-warehouse/): millions of records with full history - [Image classification and OCR](https://quadevs.com/case/image-classify-ocr/): GPU-aware pipeline for medical documents - [Clinical data aggregation hub](https://quadevs.com/case/clinical-data-hub/): one typed SDK over many clinical sources - [Multi-clinic web platform](https://quadevs.com/case/multi-clinic-web/): ADA-compliant multi-tenant clinic sites ## Trust - [Process](https://quadevs.com/process/): how an engagement runs - [Security and HIPAA](https://quadevs.com/security/): posture, controls, audit chain - [Principles](https://quadevs.com/principles/): how we choose and run engagements - [Privacy](https://quadevs.com/privacy/): data handling on this site ## Contact - Email: hello@quadevs.com - Brief form: https://quadevs.com/#contact - [Contact QuaDevs](https://quadevs.com/contact/): project enquiry form and hello@quadevs.com - [About QuaDevs](https://quadevs.com/about/): services, project information and contact route - [Public MCP server card](https://quadevs.com/.well-known/mcp/server-card.json): read-only public site tools