Free Clinical Tools
Practice-management utilities built for outpatient providers. All tools run in your browser — nothing is sent to a server.
Insurance Denial Appeal Letter Generator
Letter GeneratorGenerate a professional, ready-to-send appeal letter from your denial details. No backend — everything stays in your browser. Supports all payer types.
Prior Authorization Letter Generator
Letter GeneratorFill in the clinical and insurance details and get a complete prior authorization request letter in seconds. Supports standard and urgent requests.
MDM Complexity Decision Tree
E/M CodingInteractive 2021 AMA E/M decision tree for Problems, Data, and Risk. Instantly outputs the MDM level and corresponding CPT code for new or established patients.
NPI Provider Lookup
Provider DataSearch the NPPES National Provider Identifier registry by name and state. Pulls NPI number, specialty, and practice address directly from the public CMS API.
CPT Modifier Reference
ReferenceSearchable reference for the 30 most commonly used CPT modifiers — with plain-language descriptions, typical use cases, and whether each modifier affects the RVU.
These tools solve one-off problems. Krasyn solves the whole workflow.
AI-native outpatient EMR — clinical documentation, coding, and billing in one place.
Try Krasyn in 90 seconds — krasyn.com/dpc