How Remote Billing Specialists Reduce Days in Accounts Receivable

What Days in AR Measures and Why It Matters

The average healthy medical practice maintains days in accounts receivable between 30 and 40 days. Practices above 50 days are in the danger zone. Above 60, cash flow problems start compounding.

Days in AR is calculated by dividing total outstanding receivables by average daily charges. A practice with $450,000 in outstanding receivables and $15,000 in average daily charges sits at 30 days. That same practice with $750,000 outstanding is at 50 days. The difference between those two numbers is $300,000 in cash that should already be in the bank.

MGMA’s 2024 benchmarking data shows the median days in AR across all specialties is 35.2 days. The top-performing 25th percentile hits 26.8 days. The bottom quartile exceeds 49 days.

From what we see across our placements, practices that let AR creep above 45 days almost always share two characteristics: they lack a dedicated person working aged claims, and they have no systematic follow-up process for claims older than 30 days. Both problems are solvable.

The 6 Factors That Push AR Days Higher

1. Slow Charge Entry

Every day between the date of service and the date the claim is submitted adds a day to your AR. MGMA data shows the median time from service to claim submission is 3 days for top performers and 7 days for the bottom quartile. A 4-day difference does not sound like much until you multiply it across 200 claims per week. That is 800 extra claim-days per week sitting in your pipeline before payers even see them.

Practices still using paper superbills or batching charge entry weekly instead of daily are the most common offenders here.

2. Clean Claim Rate Below 95%

A “clean claim” passes through the clearinghouse and into the payer’s adjudication system on the first submission without rejection or request for additional information. The industry benchmark for clean claim rate is 95% or higher. Practices below 90% see AR days balloon because every rejected or denied claim adds 14 to 45 days of rework time before resubmission.

The Healthcare Financial Management Association (HFMA) estimates that each percentage point improvement in clean claim rate reduces days in AR by 0.5 to 1.0 days. Moving from 88% to 95% clean claims could shave 3.5 to 7 days off your AR.

3. No Systematic Follow-Up on Aged Claims

Claims do not work themselves. A claim submitted to a payer has a half-life: the longer it sits without follow-up, the less likely it is to be paid. According to Optum’s revenue cycle benchmarks, claims not followed up within 30 days of submission have a 12% lower payment rate than claims followed up at the 21-day mark.

The most common pattern we see: a practice submits claims on time, then does not touch them again until the 60-day aging report flags them. By then, timely filing windows may be shrinking and payer processing delays have compounded.

4. High Denial Rate Without Rework Process

A 10% denial rate means 10% of your revenue enters a secondary workflow that takes 2 to 4 times longer to resolve than a clean claim. Practices with denial rates above 8% and no structured rework process see those denied claims age to 60, 90, or 120+ days before anyone addresses them. Some never get addressed at all.

HFMA reports that the average cost to rework a denied claim is $25 to $118. But the AR impact is worse than the rework cost. Each unworked denial sits on your books inflating your receivables while generating zero cash.

5. Patient Responsibility Collection Gaps

Patient balances are the slowest-collecting portion of AR for nearly every practice. The average collection rate on patient responsibility balances is 50% to 70%, according to Athenahealth’s revenue cycle data. And those balances that do get collected take an average of 50 to 60 days, compared to 18 to 25 days for payer payments.

High-deductible health plans have accelerated this problem. When a patient owes $2,500 of a $3,200 claim, the practice carries that receivable much longer than if the payer owed the full amount.

6. Credentialing and Enrollment Delays

New providers who are not yet credentialed with all payers generate claims that cannot be processed until enrollment is complete. Credentialing takes 60 to 120 days with most commercial payers and 90+ days with Medicare. Every claim submitted for a non-credentialed provider will be denied and must be resubmitted after enrollment is confirmed.

A single new-hire physician generating 150 claims per month during a 90-day credentialing period creates 450 claims that will sit in AR until the enrollment goes through and resubmission occurs. That is a measurable spike in days in AR that shows up in practice-wide metrics.

AR Benchmarks by Practice Size and Specialty

Not all practices should target the same AR number. Specialty, payer mix, and size create meaningful differences in what is achievable.

Category	Top Quartile (Days)	Median (Days)	Bottom Quartile (Days)
Primary Care	24	33	46
Orthopedics	28	38	52
Cardiology	26	35	48
OB/GYN	27	36	50
Dermatology	22	30	42
Psychiatry/Mental Health	30	40	55
Urgent Care	20	28	38
Multi-specialty Group (10+)	27	35	47
Solo Practice	26	37	54

Source: MGMA 2024 DataDive, Athenahealth Revenue Cycle Benchmarks 2024.

Psychiatry and mental health practices tend to run higher AR because of higher patient responsibility portions and more frequent prior authorization requirements. Urgent care runs lower because of simpler coding (fewer procedure combinations) and higher point-of-service collections. Dermatology benefits from relatively straightforward claim structures and fewer bundling issues.

If your practice sits in the bottom quartile for your specialty, a 10-day improvement in AR represents real money. For a practice with $15,000 in daily charges, each day of AR reduction frees up $15,000 in cash flow. A 10-day improvement puts $150,000 back in your operating account.

What a Remote Billing Specialist Does That In-House Staff Don’t

This is not about remote staff being inherently better than in-house staff. It is about what happens when you assign a dedicated person to AR management instead of splitting billing responsibilities across staff who also handle scheduling, check-in, phones, and patient questions.

In-house billing staff at practices with 3 to 10 providers split their time across five or six functions: charge entry, claim submission, payment posting, patient billing, phone calls, and (somewhere in there) follow-up on aged claims. MGMA’s staffing benchmarks show the median practice has 1.2 billing FTEs per provider. At that ratio, systematic AR follow-up is the first thing that falls off the daily task list when volume picks up.

A remote billing specialist dedicated to AR management spends 100% of their working hours on claims. No front desk coverage. No phone interruptions. No pulling double duty during lunch breaks.

Here is what that dedicated focus produces:

• Daily aging report review: Every claim older than 21 days gets checked for status. In-house teams review aging reports weekly at best, monthly at worst.
• Proactive payer follow-up: Calling or checking payer portals on claims before they hit the 30-day mark, when resolution rates are highest.
• Pattern identification: When a specialist works nothing but AR all day, they spot payer-specific delays, coding issues, and process breakdowns faster than someone who checks aging reports for 45 minutes between other tasks.
• Consistent denial rework: Denied claims get worked within 48 hours of receipt, not whenever someone has a free moment.

From what we see across our placements, practices that move from shared-responsibility billing to a dedicated remote AR specialist see their days in AR drop by 8 to 15 days within the first 90 days. The work was always there. The difference is that someone is now doing it consistently.

The Math: How a Dedicated Biller Reduces AR Days

Numbers tell the story better than claims about “improved efficiency.” Here is a real scenario based on composite data from practices in our network.

Practice profile: 6-provider orthopedic group, $90,000 in average daily charges, 4,200 claims per month, 9.5% denial rate, days in AR at 47.

Before adding a remote billing specialist:

• Total AR: $4,230,000 ($90,000 x 47 days)
• Claims over 60 days: 18% of total AR ($761,400)
• Claims over 90 days: 9% of total AR ($380,700)
• Monthly write-offs on aged claims: $38,000
• Appeal rate on denials: 22%
• Time from denial to appeal: 28 days average

After 90 days with a dedicated remote billing specialist:

• Days in AR: 34 (down from 47, a 13-day reduction)
• Total AR: $3,060,000 ($90,000 x 34 days)
• Claims over 60 days: 8% of total AR ($244,800)
• Claims over 90 days: 3% of total AR ($91,800)
• Monthly write-offs on aged claims: $14,000 (down 63%)
• Appeal rate on denials: 68%
• Time from denial to appeal: 9 days average

The financial impact:

• AR reduction: $1,170,000 in accelerated collections over the 90-day period
• Monthly write-off reduction: $24,000 per month ($288,000 annualized)
• Additional revenue from increased appeal rate: approximately $8,500 per month ($102,000 annualized)

That is a combined annual impact of $390,000 from a single dedicated billing specialist. The numbers vary by practice size and starting point, but the pattern holds: dedicated AR focus produces measurable, significant financial returns.

How to Measure the ROI of a Remote Billing Hire

ROI on a remote billing specialist is not theoretical. You can calculate it with numbers you already have.

Step 1: Establish your baseline. Record your current days in AR, total AR balance, monthly write-offs, denial rate, and appeal rate. Pull these from your practice management system’s standard reports. If you do not have clean data, start tracking now and measure again in 30 days.

Step 2: Calculate the cost of the hire. A remote billing specialist through a staffing partner costs $2,000 to $3,500 per month depending on experience level and hours. That is the full cost: no benefits, no payroll taxes, no equipment, no office space. Compare that to a full-time in-house billing specialist at $42,000 to $55,000 per year ($3,500 to $4,583 per month before benefits, payroll taxes, and overhead that add another 25% to 35%).

Step 3: Measure the impact at 30, 60, and 90 days. Track the same metrics you baselined. The key indicators:

• Days in AR (target: 5 to 15 day reduction in 90 days)
• Percentage of AR over 60 days (target: reduce by 40% to 60%)
• Monthly write-offs (target: reduce by 30% to 50%)
• Appeal rate (target: increase to 60%+ of eligible denials)

Step 4: Calculate net ROI.

Net monthly benefit = (monthly write-off reduction) + (additional appeal revenue) + (value of AR days freed up as monthly cash flow improvement)

Net monthly ROI = (Net monthly benefit – monthly cost of specialist) / monthly cost of specialist x 100

For the orthopedic practice example above: ($24,000 + $8,500 – $3,000) / $3,000 = 983% ROI. Even at conservative estimates (half those numbers), the ROI exceeds 400%.

But here is what the raw ROI calculation misses. Reducing days in AR improves your borrowing position if you have a line of credit. It reduces the need for short-term financing to cover payroll during slow collection months. And it gives you accurate financial data for making hiring, expansion, and equipment decisions. Those downstream benefits are harder to quantify but real.

What to Look for When Hiring a Remote AR Specialist

Not every billing specialist is equipped to manage AR effectively. The skill set for AR management overlaps with but is distinct from general billing. Specifically, you want someone with:

• Experience reading and interpreting aging reports in at least one major PM system (eClinicalWorks, Athenahealth, NextGen, AdvancedMD)
• Familiarity with payer portal navigation for claim status checks (UnitedHealthcare, Anthem, Aetna, Cigna, Medicare)
• Knowledge of appeal processes and documentation requirements by payer
• A track record of reducing days in AR at a previous position (ask for specific numbers)
• CPC or CCS certification is a plus but not required for AR-focused roles

During the interview, give candidates a sample aging report and ask them to prioritize the top 10 claims they would work first and explain why. Their answer tells you more about their AR management ability than any certification.

Frequently Asked Questions

What is a good target for days in AR?

For most specialties, 30 to 35 days is a strong target. Practices with high surgical volumes or complex authorization requirements (orthopedics, cardiology, oncology) may run 35 to 40 days even with excellent billing operations. Anything above 45 days signals a process problem that is costing real money. The goal is not to hit a single number but to trend downward consistently, quarter over quarter, until you reach the top quartile benchmark for your specialty.

How quickly can a remote billing specialist impact AR days?

Most practices see initial movement within 30 days as the specialist begins working the oldest, highest-value claims that have been sitting untouched. The largest drop occurs between days 45 and 90 as systematic follow-up catches claims before they age past 30 days. By 120 days, the specialist has usually worked through the backlog and shifted to a maintenance rhythm. Expect a 5 to 8 day AR reduction in the first 60 days and an additional 3 to 7 days by day 90, depending on how large the starting backlog is.

Should I hire a remote billing specialist or outsource to a billing company?

They solve different problems. A remote billing specialist works as a dedicated member of your team, uses your PM system, follows your workflows, and reports to your billing manager. A billing company takes over the entire function and uses their own systems and processes. If your billing infrastructure is solid and you need more hands on AR follow-up and denial management, a remote specialist is the better fit. If your entire billing operation is broken (no PM system, no trained staff, no processes), a billing company rebuild may be more appropriate. The cost difference matters too: a remote specialist runs $2,000 to $3,500 per month, while full-service billing companies charge 4% to 10% of collections, which for a $3 million annual collection practice is $10,000 to $25,000 per month.

What tools does a remote billing specialist need access to?

At minimum: VPN or secure remote access to your practice management system, login credentials for all payer portals (commercial and government), access to your clearinghouse dashboard for claim status and rejection reports, and a HIPAA-compliant communication channel (encrypted email or messaging platform) for discussing patient account details with your team. Most practices also provide access to their EHR for pulling clinical documentation needed for appeals. Setup takes 3 to 5 business days if IT support is available and payer portal credentials are ready.