Denial reduction · Multi-specialty group
Denial reduction · Multi-specialty groupCath-lab denial rate from 11.2% to 3.4% in 90 days.
A 12-provider cardiology group in Houston was bleeding revenue on cath-lab denials and modifier 25 / 59 errors. Inside one quarter on Medonix, denial rate dropped to 3.4% and the appeal-overturn queue cleared an aged backlog worth roughly $480,000.
- Multi-specialty group · Cardiology
- Client: 12-provider cardiology group
- State: TX
- Denial reduction
Outcome at a glance
Before and after, on the metrics that mattered.
Denial rate
Aged backlog
Days in A/R
The situation
Where the practice was when Medonix engaged.
A 12-provider cardiology group in Houston had been operating with a denial rate above 10% for the better part of two years. Cath-lab procedures (CPT 92920 series and 93000 series) were denying inconsistently across BCBS of Texas and UnitedHealthcare commercial plans, and the practice could not pin down whether the issue was coding, modifier sequencing, or payer-policy drift.
The internal billing team of three was working at capacity submitting new claims, which meant aged A/R was getting almost no attention. By the time the group brought Medonix in, the >60-day A/R bucket had grown to roughly $480,000, with another $1.1M in 30-to-60-day claims at risk.
The practice CFO had received two prior vendor proposals that quoted higher rates than the in-house cost without committing to a measurable denial-reduction outcome. They wanted the work done with skin in the game.
The work
What Medonix actually did.
Discovery and audit ran for 14 days. A senior strategist pulled six months of remits and categorized every denial by CARC code, payer, CPT family, and root cause. The output was a heat map showing that 62% of denials concentrated in three patterns: modifier 25 with E/M on a procedure day (CO-97), missing prior auth on diagnostic catheterizations (CO-197), and incorrect modifier 59 unbundling on dual-vessel interventions.
Parallel-run onboarding ran days 14 through 44. Medonix integrated to the practice EHR, built payer-specific scrub rules for the three top denial reasons, and shipped test claims behind the scenes while the internal team continued production submission. By day 30, the scrub rules were catching the same denial patterns at the clearinghouse layer with measured accuracy.
Cutover happened on day 45. From day 45 forward, every claim flowed through Medonix with the new scrub-rule engine and the AI denial-categorization workflow. AAPC-credentialed cardiology coders worked the existing aged backlog with payer-specific appeal templates pre-built per denial reason.
The outcome
Where the practice landed.
By day 90, the practice denial rate had dropped from 11.2% to 3.4% measured first-pass. The aged backlog of $480,000 had been worked with an appeal-overturn rate of 71%, recovering approximately $341,000 in cash that had been tracking toward write-off.
Days in A/R compressed from 52 to 17 over the same window, primarily by clearing the aged claims that had been dragging the average. The internal billing team transitioned from production submission to oversight of the Medonix relationship, with two of three positions kept and refocused on payer-contracting and patient financial services.
The CFO's quarterly board update for Q2 reported a $341,000 recovery, a normalized 3.4% denial rate, and an annualized run-rate revenue lift of approximately $620,000 from prevented denials going forward.
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