Benjamin Flessner
Member, Co-chair Structured Documents Workgroup, C-CDA Examples Task Force Member at Health Level Seven International
Cedar Falls, Iowa, United States
Summary
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SeniorBenjamin Flessner is a senior software engineer with 11+ years focused on healthcare interoperability, having built foundational systems at Epic, led FHIR and C-CDA engineering at Redox, and currently driving data standardization and modernization at Availity. He combines deep standards expertise (co-chair of HL7's Structured Documents Work Group and co-editor of C-CDA) with hands-on implementation experience—designing a scalable FHIR data warehouse, intelligent deduplication, and robust conversion tooling between HL7v2, C-CDA, and FHIR. Benjamin is known for turning fragile legacy code into well-documented, testable architectures and for creating practical developer tooling that reduces implementation friction. Based in Cedar Falls, Iowa, he pairs systems-level thinking with a knack for clear mapping between clinical semantics and engineering realities, and he regularly authors examples and guides that prevent real-world implementation headaches.
11 years of coding experience
Github Skills (38)
cda10
tla10
xml-schema10
specification10
schematron10
jira9
magicmirror9
abaqus9
perf9
tplink9
risk-assessment9
hl79
hl7-fhir9
simple-api8
artifacts8
Programming languages (7)
Github contributions (5)
HL7/CDA-core-sd
Oct 2023 - Nov 2024
FHIR Logical Model representation of CDA core specification
Contributions:5 PRs, 99 pushes, 13 branches in 1 year 2 months
HL7/CDA-ccda-2.1
May 2021 - Jul 2022
Schematron, samples, and other artifacts for C-CDA Release 2.1
Contributions:4 releases, 6 reviews, 28 commits in 1 year 1 month
schematronartifactscda
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