Guides
Healthcare data, explained plainly
No fluff, no fabricated numbers — real guidance on NPI numbers, the NPPES registry, ICD-10-CM codes and validation, written for billers, coders and the developers building on healthcare data.

Medical Billing APIs: Start With Reference Data
A medical billing API guide for separating public provider and coding reference data from patient, claims and eligibility data.
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Best Healthcare & Medical APIs for Developers in 2026
Not every healthcare API does the same job. A category-by-category guide to provider identity, coding reference, FHIR/clinical, and claims APIs — and where PHI actually applies.

NPI Lookup Tools Compared: NPPES vs Commercial APIs
The free government registry, paid commercial NPI APIs, and credentialing platforms with lookup bolted on — a fair, criteria-based comparison of what each is actually good at.

Free vs Paid ICD-10 Lookup Tools: What You Actually Get
Free ICD-10 codes aren't a workaround — CDC/NCHS has always published the full set free. Here's what raw files, free lookups, and paid coding software each actually add.