Free Engine Audit — Denial-Intelligence Analysis
The engine runs on your own claims and surfaces what's recoverable. $0, no contract, no obligation — a technology demo that produces your numbers.
Denial-intelligence technology — not a billing company
We built the engine that finds the revenue your billing can't reach.
Apex Flow is a forensic denial-intelligence technology firm. Our engine analyzes your
claims across 284 denial codes, maps how each payer denies, and surfaces recoverable
revenue a busy billing team never gets to. Your denied claims aren't dead — they're unworked.
Free to find: we run your own claims through the engine and show you what's
recoverable. Paid to fix: we recover it on contingency — you pay only on what we
collect. $0 setup.
No contract. No obligation. The findings are yours to keep.
If we don't recover, you don't pay. That simple.
The engine
Every claim. Every code.
- Every denial — diagnosed by code, not guessed
- Every underpayment vs. the fee schedule
- Every aging claim — mapped to the payer's own policy
Built for independent specialty practices nationwide
What the engine does
Most billers review claims. We diagnose them.
Apex Flow is not a billing company — we built a forensic denial-intelligence engine. Most billing reviews eyeball a handful of claims and call it an audit. Our engine examines your entire claim population, diagnoses every denial by its specific X12 reason code, and maps each finding to the payer's own published policy. Experian Health reports roughly 12% of claims are denied on first submission — the engine exists to find exactly where your numbers land and why:
284 CARC denial pathways
Every denial diagnosed by code and payer pattern — not guessed.
Payer-policy cross-reference
LCD, NCD, and published coverage criteria matched to each denial — appeals cite the payer's own rules.
Contract-variance analysis
The engine surfaces underpayments versus your contracted fee schedule — money most billing misses entirely.
Evidence-backed appeal generation
Every appeal is grounded in the specific policy, not a template guess.
Denial Resolution & Appeals
Root-cause diagnosis across all 284 CARC families, plus evidence-backed appeals tied to the payer's own published policy.
Aged A/R Recovery
The engine works the claims others stopped pursuing. Recovery on contingency — you pay only on what we collect.
Underpayment Recovery
Contract-variance math that finds the dollars you were quietly shorted versus your fee schedule.
Full Billing Management
End-to-end billing powered by the same engine — a percentage of collections, no setup fee.
Prompt-Pay & Compliance Reporting
Clean, transparent reporting against the standards that matter.
We benchmark against the revenue-cycle standards published by HFMA — denial rates of 5–10%, days in A/R of 30–40, and A/R over 90 days held under 10%.
How it works
From audit to recovered revenue in four steps.
-
1
Book your free audit
Grab a time that works. We scope your denials and aging A/R — no cost, no contract.
-
2
We go forensic
Our engine reviews every claim, diagnoses each denial, and finds underpayments others miss.
-
3
You get the findings
A clear, evidence-backed report of what's recoverable. Yours to keep, with no obligation.
-
4
We recover — on contingency
Give the word and we work the appeals. You pay only on what we actually collect.
See it in motion
Watch how a claim flows — and how we recover what leaks.
Animation
The claim lifecycle
Follow a claim from the front desk through payer review to recovered revenue — and see where the money usually dies.
Watch ▶ AnimationHow we recover your A/R
We find the leak where it hides, seal it, recover what you're owed, and patch the patterns so you stay in the green.
Watch ▶Pricing
Free to find. Paid to fix. $0 to start.
Free engine audit
$0
The engine runs on your own claims and shows you what's recoverable. No contract, no obligation — the findings are yours to keep.
Recovery — contingency
$0 setup
You pay only on what we actually collect. Rate is tiered by claim age — reviewed together at the audit.
Full billing management
% of collections
End-to-end billing powered by the engine. Rate discussed at the audit — no setup fee.
| Claim age | How it's priced |
|---|---|
| 0–90 days | Contingency — reviewed at audit |
| 91–180 days | Contingency — reviewed at audit |
| 181–365 days | Contingency — reviewed at audit |
| 365+ days | Contingency — reviewed at audit |
Federal plans (Medicare/Medicaid) are billed at a flat per-claim rate, not a percentage — reviewed at the audit. You pay nothing until we recover.
Run the engine on your claims — freeSecurity & compliance
Your data is handled the way patient data should be.
HIPAA-aligned handling
Protected health information is handled under HIPAA at every step of the review.
BAA before identifiable data
We sign a Business Associate Agreement before touching any identifiable claim data.
De-identified by default
Data is de-identified before anything leaves your environment.
Human-accountable
Every recommendation is evidence-backed; a person makes the final call. Nothing auto-executes.
Save your headshot as founder.jpg in this folder
About
Neals Maxilin — Founder & Managing Owner
Neals Maxilin founded Apex Flow to build what independent specialty practices actually need: a denial-intelligence engine that diagnoses every claim at the code level — not a billing service that samples a few and calls it a review. The engine is the product. Recovery is what it enables.
His career spans more than a decade across the full revenue cycle — from large health-system settings to high-volume specialty coding to multi-practice billing leadership. As a medical coder, he worked high-value, high-complexity DME and pain management claims in fast-paced, high-volume environments — the exact denial-prone, payer-scrutinized claim types where recoverable revenue most often slips away. That pattern-level exposure is what the engine is built around.
As a billing team lead overseeing a multi-location specialty practice group, he managed revenue cycle operations across several practice locations, working accounts receivable totaling more than $15 million and maintaining clean-claim performance around 95%.
These figures reflect cumulative prior professional experience across multiple organizations — not Apex Flow client results.
FAQ
Straight answers before you book.
How does the free forensic A/R audit work?
We review your entire claim population — every denial, underpayment, and aging claim — with a purpose-built forensic engine, then hand you the findings. There's no cost, no contract, and no obligation. The findings are yours to keep whether or not you work with us.
What does it cost?
The audit is $0. If you engage us to recover, you pay a contingency fee only on what we actually collect — 18% to 35% depending on claim age. Full billing management is 5% of collections.
Is there a contract to start?
No. The audit has no contract and no obligation. You only enter an agreement if you decide to have us recover the dollars we identify.
Is my patient data secure and HIPAA-compliant?
We handle protected health information in line with HIPAA: data is de-identified before anything leaves your environment, and we sign a Business Associate Agreement before handling identifiable claim data.
Which practices do you work with?
Independent specialty practices nationwide — with particular depth in denial-prone, payer-scrutinized specialties: pain management, orthopedics, neurology, chiropractic, physical therapy, podiatry, cardiology, and gastroenterology.
How is this different from my current biller?
Most reviews sample a handful of claims. We examine your entire claim population and tie every denial to the specific payer policy behind it, so appeals go out backed by evidence rather than guesswork.
Get your audit
See where your revenue is leaking — free.
Tell us a little about your practice and we'll prepare your forensic denial & A/R audit — a private dashboard of your own numbers showing what's recoverable and how we'd recover it. No cost, no obligation, and the findings are yours to keep. Prefer to talk first? Book a time instead.
Ready to see what's recoverable?
Book your free forensic A/R audit
Pick a time online, or email us — the findings are yours to keep either way.