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Reference corner

Reference corner

Whenever a colleague asks which fields a Practitioner resource actually needs, I point them at the R4 resource atlas I maintain here.

FHIR Server & API Solutions
  • Profiles and Slicing at a Glance
  • Reference vs Contained: When to Embed and When to Link
  • Top 5 MPI Engines for Payer-Driven Patient Reconciliation in 2026
  • The Ten FHIR Resources You Should Learn First
  • Navigating FHIR R4 Resources When You Know DomainResource But Not Much Else
Top 5 HL7 v2 to FHIR Conversion Engines for US Hospitals
Services

Top 5 HL7 v2 to FHIR Conversion Engines for US Hospitals

Jasmine Ward Jul 5, 2026 0

HL7 v2 messaging is still the backbone of intra-hospital clinical communication in 2026, and the path from v2 to FHIR…

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Where to Look in the New Open-Source FHIR Benchmark Repo
Services

Where to Look in the New Open-Source FHIR Benchmark Repo

Serena Alcott Jun 30, 2026 0

Health Samurai published an open-source FHIR server performance benchmark on June 29, 2026, with Aidbox, HAPI FHIR, Medplum, and the…

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Best FHIR Servers for Telehealth Platforms in 2026
Services

Best FHIR Servers for Telehealth Platforms in 2026

Fatima Choudhury Jun 25, 2026 0

Telehealth platforms place a particular set of demands on the FHIR server underneath them. The data shape is intake-heavy and…

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CMS-0057-F Prior Auth SLA Under Delegation: Where the Clock Starts and Stops in 2027
Services

CMS-0057-F Prior Auth SLA Under Delegation: Where the Clock Starts and Stops in 2027

Jasmine Ward Jun 18, 2026 0

The CMS Interoperability and Prior Authorization Final Rule, CMS-0057-F, is often reduced to two numbers: 72 hours for expedited decisions…

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5 FHIR Servers That Actually Handle SMART on FHIR Scopes Correctly
Services

5 FHIR Servers That Actually Handle SMART on FHIR Scopes Correctly

Jasmine Ward Jun 14, 2026 0

SMART on FHIR scope handling is one of those features that every server claims and a smaller number actually implements…

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Top 6 FHIR Servers for Population Health Analytics in 2026
Services

Top 6 FHIR Servers for Population Health Analytics in 2026

Serena Alcott Jun 8, 2026 0

Population health analytics workloads are the opposite shape of real-time clinical FHIR. They run on bulk exports, NDJSON streams, and…

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Top 7 FHIR API Tools for Real-Time Clinical Workflows
Services

Top 7 FHIR API Tools for Real-Time Clinical Workflows

Douglas Halloway Jun 6, 2026 0

Real-time clinical workflows are the sharper end of the FHIR API space. Order entry, results delivery, allergy reconciliation, and bedside…

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PUT vs PATCH vs Upsert: Which FHIR Write Strategy Is Right?
Services

PUT vs PATCH vs Upsert: Which FHIR Write Strategy Is Right?

Jasmine Ward Jun 5, 2026 0

FHIR servers expose three meaningful ways to write a changed resource, and integration teams that conflate them tend to discover…

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Top 5 FHIR Servers for Mid-Size US Hospitals in 2026
Services

Top 5 FHIR Servers for Mid-Size US Hospitals in 2026

Douglas Halloway Jun 5, 2026 0

Mid-size US hospitals occupy a narrow middle of the FHIR market: too large to run on the entry-level managed APIs…

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Choosing a FHIR Server for Healthcare IT: A Buyer's Guide
Services

Choosing a FHIR Server for Healthcare IT: A Buyer's Guide

Fatima Choudhury Jun 3, 2026 0

A FHIR server is the system of record for any modern healthcare IT stack that exposes patient, observation, or questionnaire…

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Medical Forms & FHIR SDC
Editorial illustration in cyberpunk-neon style depicting a cyberpunk-neon base Patient resource with US Core profile applied and sliced identifiers
R4 Resource Atlas
Profiles and Slicing at a Glance
Jasmine Ward Jul 13, 2026
Editorial illustration in cyberpunk-neon style depicting a cyberpunk-neon side-by-side of Reference between resources vs a contained child resource
R4 Resource Atlas
Reference vs Contained: When to Embed and When to Link
Jasmine Ward Jul 13, 2026
Top 5 MPI Engines for Payer-Driven Patient Reconciliation in 2026
Master patient index
Top 5 MPI Engines for Payer-Driven Patient Reconciliation in 2026
Jasmine Ward Jul 12, 2026
Editorial illustration in cyberpunk-neon style depicting a cyberpunk-neon ten-tile grid of the most common R4 resource types with cyan neon strokes
R4 Resource Atlas
The Ten FHIR Resources You Should Learn First
Jasmine Ward Jul 12, 2026