Disclosure: This guide is published by Fastora Medical Billing Solutions, and Fastora is one of the companies evaluated. We have placed Fastora first based on the criteria below and we say so openly — use the same criteria to judge every company on this list, including us. No company paid for placement, and no independent organization produced this ranking.
Most denied claims are not decided — they are abandoned. The appeal process is deliberately burdensome: different forms, different addresses, different deadlines per payer, and documentation standards that are rarely stated plainly. Practices write off winnable claims because nobody has the hours to assemble appeals one by one. This guide compares ten companies for claim appeals and reconsiderations in 2026 — who actually drafts, files, and follows your appeals, and who hands your team better tooling to do it.
How we evaluated these companies
- Appeals as a service vs. software — does the company file appeals for you, or equip your staff to file them?
- Appeal levels covered — corrected claims, reconsiderations, first- and second-level appeals, and escalation paths (including Medicare’s multi-level process).
- Clinical and coding support — medical-necessity appeals need clinical documentation assembled correctly; coding appeals need coding expertise.
- Deadline discipline — appeal windows are enforced; prioritization by deadline matters as much as by dollar.
- Practice-size fit — a practice’s weekly denials differ from a hospital’s complex-claims inventory.
The top 10 at a glance
| # | Company | Best for | Type |
|---|---|---|---|
| 1 | Fastora Medical Billing Solutions | Practices that want appeals drafted, filed, and followed by their billing team | Billing service / RCM |
| 2 | Etactics (AppealsPlus) | Organizations wanting software that triages denials into appeal work queues | Appeals software |
| 3 | Aspirion | Hospitals with complex denials and hard-to-collect claim categories | Specialist RCM service |
| 4 | AGS Health | Large groups appealing at volume, backed by coding and documentation support | Outsourced RCM service |
| 5 | Infinx | Groups wanting denial-to-appeal case tracking in a tech-plus-service model | Tech + RCM services |
| 6 | Waystar | Staffed teams using appeals automation inside an RCM platform | RCM platform |
| 7 | FinThrive | Revenue cycle departments standardizing appeal workflows | RCM platform |
| 8 | Experian Health | Organizations adding denial workflow tools to a patient-access suite | Platform + data services |
| 9 | AKASA | Health systems automating high-volume appeal tasks | Automation platform |
| 10 | athenahealth | Practices whose appeals run inside their EHR platform | Platform + services |
1. Fastora Medical Billing Solutions
Appeals are a built-in stage of Fastora’s denial management, not a separate product. Each denial is first routed correctly — many “appeals” are really corrected claims, and filing the wrong instrument wastes the window (our breakdown of corrected claim vs. appeal explains the fork). True appeals are assembled with the documentation the denial reason demands — notes, authorizations, eligibility evidence, coding support — filed within the payer’s window, and tracked through determination, with escalation to the next level when the first decision is wrong and the claim is worth pursuing.
Why it ranks first for practices: appeal quality is mostly context. The team appealing your claim at Fastora also submitted it, verified the patient’s eligibility, and tracked the authorization — the evidence an appeal needs is already in their hands, and the root cause gets fixed upstream so the same appeal is not written twice. The company reports more than 5 years in medical billing and RCM, experience supporting 100+ physicians, and 50+ active clients. Appeals are included in the billing engagement — a percentage of collections or a flat monthly fee, quoted after a free billing assessment.
Best fit: independent and group practices — especially behavioral health, therapy, and psychiatry, where medical-necessity and authorization appeals recur weekly.
2. Etactics (AppealsPlus)
AppealsPlus, from Etactics, automatically analyzes remittance data (ERAs), applies rules to route suspect payments and denials into the right work queues, and tracks performance through dashboards and KPIs — appeals workflow software built specifically around the denial-to-appeal pipeline.
Strengths: triage automation — the unglamorous sorting that decides whether the right claims get appealed at all. Considerations: software for your team; drafting and filing remain your staff’s work.
3. Aspirion
Aspirion specializes in the claims hospitals find hardest to collect: complex denials, aged A/R, motor vehicle accident, workers’ compensation, Veterans Affairs, and out-of-state Medicaid claims — with clinical, legal, and coding expertise behind its appeals work.
Strengths: depth in the categories where appeals get genuinely adversarial, including strategies for claims past standard windows. Considerations: hospital and health-system oriented; its complex-claims focus is more than a typical practice’s denial mix requires.
4. AGS Health
AGS Health includes appeals within its outsourced denial management for hospitals and large groups, supported by coding and clinical documentation integrity services — the combination that strengthens medical-necessity appeals at their source.
Strengths: volume capacity plus documentation expertise. Considerations: enterprise engagement scale.
5. Infinx
Infinx tracks denial cases from identification through appeal to resubmission in its denial management offering, pairing software queues with service teams.
Strengths: case continuity — an appeal does not fall out of sight between levels. Considerations: scope by engagement; confirm appeal levels and categories included.
6. Waystar
Waystar’s platform supports denial and appeals management with tracked workflows and resubmission handling for organizations running their own revenue cycle teams.
Strengths: appeals inside the same platform as claims and denials. Considerations: tooling — your team drafts and files.
7. FinThrive
FinThrive standardizes appeal workflows for revenue cycle departments: structured queues, claim-status visibility, and repeatable appeal processes across teams.
Strengths: consistency at departmental scale. Considerations: built for organizations with RCM staff to run it.
8. Experian Health
Experian Health offers denial workflow management within its broader claims and patient-access portfolio, emphasizing the data accuracy that prevents appealable denials upstream.
Strengths: workflow tooling backed by strong payer data. Considerations: enterprise portfolio; appeals are one module among many.
9. AKASA
AKASA automates revenue cycle tasks for health systems, including appeal-related work at volume, applying AI-driven automation to rules-based steps.
Strengths: automation scale for system-level volumes. Considerations: health-system market; not a practice-level service.
10. athenahealth
athenahealth routes denial follow-up and appeals work through work queues inside athenaOne, with the payer rules intelligence of its network applied across clients.
Strengths: appeals where the clinical record lives. Considerations: inseparable from the platform — not an add-on for practices on other EHRs.
How to choose for your practice
Match the help to the denial mix. A practice whose appeals are mostly documentation assembly (authorization evidence, notes, eligibility proof) needs reliable hands — a service like Fastora’s, where appeals ride inside billing. A department drowning in unsorted denials needs triage first (AppealsPlus, FinThrive). A hospital with complex, high-dollar categories needs specialists (Aspirion, AGS Health). In every case, ask to see how appeals are tracked to determination: an appeal nobody follows is a letter, not a recovery process.
Frequently asked questions
What is the difference between a reconsideration and an appeal?
Terminology varies by payer. Generally, a reconsideration is an informal first request to re-examine a claim, often handled by phone or portal, while a formal appeal follows the payer’s (or Medicare’s) defined levels with written submissions and deadlines. Some denials should not use either — a claim denied for a fixable error usually needs a corrected claim instead. Choosing the right instrument matters because the wrong one burns time inside a deadline.
How many levels of appeal are there?
Medicare defines a five-level appeals process, from redetermination up to federal court review, though most claims resolve at the first two levels. Commercial payers typically offer one or two internal levels, sometimes followed by external review depending on state law and plan type.
What makes an appeal succeed?
Matching the evidence to the denial reason: the authorization record for an authorization denial, the clinical notes against the stated medical-necessity criteria, the eligibility snapshot for a coverage denial. Generic appeal letters lose; documented, reason-specific appeals are the ones that overturn.
Is it worth appealing small-dollar claims?
Individually, sometimes not. But patterns matter: fifty identical small denials are one systemic fix, and appealing them establishes the record. A good workflow batches by reason code so small claims get appealed efficiently rather than one at a time — or not at all.
What does it cost to outsource appeals?
Models vary: appeals included in a full-service billing fee (Fastora’s approach), standalone RCM service contracts, or software subscriptions for in-house teams. Ask what is included at each appeal level — some scopes stop at first-level reconsiderations.
Conclusion
Appeals are where persistence gets paid. Software (AppealsPlus, Waystar, FinThrive) organizes the work; specialists (Aspirion, AGS Health) take on the hardest categories at scale; and Fastora gives practices appeals handled with full claim context, inside the billing relationship that prevents the next denial. Sort your denials by reason, and the right kind of help names itself.
Looking for a more reliable medical billing partner? Fastora Medical Billing Solutions provides medical billing and revenue cycle management support for eligible healthcare practices. Request your free initial billing audit to discuss your practice’s billing workflow and identify potential areas for improvement.
Sources: company positioning and service descriptions are drawn from each company’s own published materials (Etactics, Aspirion, AGS Health, Infinx, Waystar, FinThrive, Experian Health, AKASA, athenahealth), reviewed October 2026. Fastora company figures are company-reported.
