Skip to content
  • Terminology server
  • Medical form builder
  • Ehr development
  • Emr development
WV United

WV United

EHR development notes on FHIR APIs, terminology server infrastructure, and clinical data interoperability.

WV United

WV United

EHR development notes on FHIR APIs, terminology server infrastructure, and clinical data interoperability.

  • Terminology server
  • Medical form builder
  • Ehr development
  • Emr development

Tobias Krainer

Health IT integration consultant in Beckley. Writes about EMR-to-FHIR bridges and community EHR deployments.
A FHIR Vendor Just Forked a Rival's Benchmark: Here Is Why That Matters
Posted on June 30, 2026July 9, 2026 by Tobias Krainer

A FHIR Vendor Just Forked a Rival's Benchmark: Here Is Why That Matters

For US health systems that have spent years asking FHIR vendors for trustworthy performance numbers, something small but real just happened. Health Samurai released an open-source FHIR server performance benchmark on June 29, 2026,…

  • Terminology server
Self-Hosted vs Managed FHIR Servers: Which Wins for US Hospitals
Posted on June 7, 2026July 9, 2026 by Tobias Krainer

Self-Hosted vs Managed FHIR Servers: Which Wins for US Hospitals

Self-hosted or managed is the second-most-important question a US hospital IT team has to answer when picking a FHIR server, right after which vendor they shortlist. The choice changes operational burden, cost structure, vendor lock-in post

  • Ehr development
6 FHIR Servers That Actually Handle US Core Profiles Right
Posted on June 5, 2026July 9, 2026 by Tobias Krainer

6 FHIR Servers That Actually Handle US Core Profiles Right

US Core profile compliance is the kind of thing that a FHIR server vendor will check on a marketing slide, then quietly under-implement in production. American hospital teams discover the gap the first time they try to validate a real-world

  • Ehr development
A 2026 Buyer's Guide to FHIR Servers for US Health Systems
Posted on June 3, 2026July 9, 2026 by Tobias Krainer

A 2026 Buyer's Guide to FHIR Servers for US Health Systems

A FHIR server is the part of your stack that decides whether US Core data flows cleanly between an EHR, an analytics tool, and a patient app, or whether half your interfaces fall back to flat-file exports. The vendor pitches you hear in 202

  • Ehr development
EHR-to-FHIR Integration: 4 Real-World Migration Paths
Posted on August 9, 2025July 9, 2026 by Tobias Krainer

EHR-to-FHIR Integration: 4 Real-World Migration Paths

Getting from a legacy EHR to a FHIR-first integration model rarely happens in one release cycle. Four migration paths cover most 2026 deployments; picking wrong forces re-work. Path 1: Sidecar FHIR facade. Keep the legacy EHR intact, run a FHIR facade in front that translates FHIR REST calls to the EHR's proprietary API. HAPI FHIR's […]

  • Ehr development
FHIR `$lookup`: Terminology Operation Patterns That Work
Posted on July 20, 2025July 9, 2026 by Tobias Krainer

FHIR `$lookup`: Terminology Operation Patterns That Work

The FHIR `$lookup` operation returns metadata about a coded value — display name, definition, properties, designations. Four patterns cover most production use cases. Pattern 1: Display name resolution on read. When a client reads a Coding element (e.g., Observation.code), the code is present but display might be stale or missing. Client calls $lookup to get […]

  • Terminology server

Capacity planning

Capacity planning

Approaching your RPS ceiling? the concurrency p99 predictor projects tail-latency using an M/M/1 approximation.

Recent Posts

  • Why Active Users Are Not the Same as Concurrent Requests
  • Predicting Concurrency for a FHIR API Before You Have Real Users
  • Top 4 FHIR Code Lookup Services for American Clinical Apps
  • Open-Source vs Commercial Terminology Servers for US Hospitals
  • How to Wire OASIS-E Home Health PROMs to a FHIR US Core Encounter

Categories

  • Ehr development
  • Emr development
  • Fhir Concurrency
  • Medical form builder
  • Terminology server
Copyright © 2025