Why use a 30-day daily-charges denominator?

Standardization. MGMA cost survey defines days in A/R as total A/R ÷ (average daily charges, calculated as monthly charges ÷ 30). Using actual business-day counts gives a slightly different number that is not benchmark-comparable.

How quickly can A/R days be reduced?

A 30-day reduction within 90 days is the typical Medonix onboarding outcome on practices starting above 50 days. The first-pass wins are eligibility, claim scrubbing, and aged-bucket worklists; sustaining the reduction requires KPI cadence with leadership.

Does this work for hospital A/R?

The formula is identical, but the targets are different. Hospital A/R days run higher (median ~45–55 due to inpatient claim complexity and payer adjudication windows). Use the calculator with that context. Best-quartile targets vary by setting.

Free tool

A/R Days Calculator

Name: Medonix MSO
Address: 300 Delaware Ave Suite 210, Wilmington, DE, 19801, US
Telephone: +1-302-520-5413
Price range: $$

Calculate your A/R days and see optimization paths. This calculator is free, requires no signup, and runs entirely in your browser. Medonix never receives your inputs unless you opt in to receive a personalized report by email.

Result

Days in A/R

38.7

Best-quartile (MGMA): ≤35 days. Median: ~40.

Daily charges

$15.0k

Monthly charges ÷ 30.

Cash trapped above target

$100.0k

Reaching the 32-day target releases this much A/R as cash.

Target A/R balance

$480.0k

At 32 days × your daily charges.

Acceptable but improvable. Median MGMA A/R days is ~40.

Methodology

Days in A/R: total A/R ÷ (average monthly charges ÷ 30). The standard MGMA cost-survey formula.

Targets: 32 days reflects the average A/R days achieved by Medonix client practices after a 90-day onboarding program. The MGMA best-quartile cutoff is ≤35 days.

Frequently asked

About the A/R Days Calculator.

MGMA best-quartile is ≤35 days. The published median is around 40 days. Above 50 sustained suggests posting lag, eligibility issues, or weak follow-up cadence on aging buckets.

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A/R Days Calculator

About the A/R Days Calculator.

01What is a good days-in-A/R number?

02Why use a 30-day daily-charges denominator?

03How quickly can A/R days be reduced?

04Does this work for hospital A/R?

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