Your AR aging report is the one document in your practice that never flatters anybody. If the 90-plus bucket has been growing for two quarters and nobody can explain exactly why, the cause usually isn’t your payer mix or your patients. It’s that no one in the building owns the follow-up work. Charge entry gets done because it has to. Denials sit, because working a denial takes forty minutes and nobody has forty minutes.
That’s the moment most practices start looking for a medical billing virtual assistant or an outsourced billing service. It’s also the moment a bad hire gets expensive — because a vendor who submits clean claims but never works denials can look perfectly competent on a monthly report while $30,000 quietly ages past timely filing.
This guide gives you 15 questions to ask before you hire any billing service, plus something page-one search results almost never provide: what a strong answer actually sounds like, and what a rehearsed deflection sounds like. You’ll also get a two-week vetting sequence you can run around a real clinic schedule.
At Care VMA, we place billing VMAs into independent practices — primary care, cardiology, behavioral health, multi-specialty groups. A meaningful share of them come to us after a first outsourcing attempt fell apart. The questions below come mostly from those conversations.
The Vendor Comparison That Costs Practices the Most Money
Here’s a scenario we see constantly. A three-provider internal medicine practice puts two quotes side by side.
Quote A: 6% of collections, full revenue cycle management. Quote B: $11 per hour for a dedicated billing assistant, 40 hours a week. The practice does quick math, sees roughly $1,900 a month versus roughly $5,500, and picks the cheaper one.
Six months later their clean-claim rate is fine and their AR is worse than when they started.
Nothing dishonest happened. The $11-an-hour assistant did precisely what was asked — charge entry, claim submission, payment posting. Nobody had ever specified who appeals a denied claim, so nobody did. The two quotes were never comparable, because they were never the same product.
That’s the real risk in this decision, and it isn’t price. It’s buying one thing while believing you bought another.
Three Different Products Are Sold Under One Label
Before any question list is useful, you need to know which of these three you’re talking to. All of them market themselves with nearly identical language.
The managed billing VMA service
The provider recruits, vets, HIPAA-trains, and employs the assistant. They handle EHR onboarding, monitor performance, cover absences, and replace the person if the placement fails. You get a dedicated biller plus an accountable company behind them. Pricing is typically hourly or a monthly subscription, so your cost doesn’t rise just because your collections did.
The VA marketplace
The platform matches you with an independent contractor and steps back. Vetting depth varies. HIPAA training, supervision, quality review, and continuity become your responsibility the moment the match is made. The hourly rate is usually the lowest of the three — that’s the whole proposition.
In our experience, this is the single most common source of failed billing outsourcing. Practices hire from a marketplace expecting a managed service, then discover in month three that “managed” was never part of it.
The percentage-of-collections billing company
A full RCM firm takes the revenue cycle end to end and charges a share of what it collects. Published 2026 pricing guides across the RCM industry consistently place these fees somewhere in the 4% to 10% range, with smaller practices generally quoted toward the higher end. The incentive alignment is real — they only get paid when you do. The trade-off is that your billing cost scales with your growth, and you typically hand over more control of your data and your payer relationships.
Why the quotes aren’t comparable
An hourly rate, a percentage, and a per-claim fee answer three different questions. Before you compare anything, convert every quote into projected annual dollars at your actual collection volume, then list what each one includes. A practice collecting $1.4 million pays roughly $84,000 a year at 6%. That’s the number to compare against a dedicated biller’s annual cost — not the monthly invoice.
We’ve written a fuller breakdown of that math in our comparison of what a billing VA costs against a full-time in-house biller, which is worth running before you take any sales call.
The 15 Questions to Ask Before Hiring a Medical Billing Virtual Assistant Service
Copy these. Send the first three by email before you agree to a single demo.
Compliance and patient data
1. Will you sign a Business Associate Agreement at the company level before anyone accesses our systems — and can we see a sample today?
2. How is your HIPAA training delivered, how long does it run, and how often is it renewed?
3. What is your breach response protocol, what’s the notification timeline, and who contacts us first?
Who actually does the work
4. Is the person assigned to us your employee, or a contractor you matched us with?
5. What billing or coding credentials does the assigned assistant hold, and can we verify them directly?
6. Who covers our account when that person is sick, on leave, or resigns — and how quickly?
Scope and ownership
7. Which parts of the revenue cycle do you own end to end, and which stay with our staff?
8. When a claim is denied, who corrects and resubmits it — you, or do you flag it back to us?
9. Do you work AR past 90 days, or only current claims?
Performance and reporting
10. What net collection rate, clean-claim rate, and days in AR do your current clients in our specialty actually run?
11. What will our monthly report contain, and can we see a de-identified sample from a live client?
12. Who is our named point of contact, and what’s the response time when something breaks?
Systems, pricing, and exit
13. Do you work inside our existing PM and EHR with named credentials, or do you require us to move to your platform?
14. What exactly is included at the quoted rate, and what gets billed separately?
15. Who owns the billing data, and what happens during the first 30 days after we terminate?
What the Answers Actually Tell You
A question set only helps if you can score the response. Four of these carry far more diagnostic weight than the rest.
The BAA answer — the fastest disqualifier
A managed service has a standard BAA and will email you a sample the same day. No hesitation, no “let’s get you on a call with our solutions team first.”
Hedging here is disqualifying on its own. If a company treats a routine compliance document as a late-stage negotiation item, that tells you where compliance sits in their operation. It also tells you what will happen the day something goes wrong.
Ask specifically whether the agreement is at the company level. A BAA signed by an individual contractor gives you very little if that contractor disappears.
The denial ownership answer — where most scope failures start
This is the question that would have saved the internal medicine practice from earlier.
A strong answer is boring and specific: we work denials under these categories, we resubmit within this window, anything requiring a clinical note or a provider signature comes back to you with the reason attached. Boundaries drawn in advance.
A weak answer sounds cooperative and means nothing: we work closely with your team on denials. That sentence has no owner in it. Six months later, both sides genuinely believe the other one had it.
A dermatology practice came to us after eighteen months with a vendor whose contract said “claim submission and payment posting.” Everything else was technically theirs to handle — they just hadn’t realized it until they pulled the aging report. Roughly $47,000 had aged past appeal windows.
The coverage answer — what happens when your biller gets the flu
Ask it plainly: your assistant is out for nine days, what happens to our claims?
A managed service names the mechanism — a cross-trained backup, a supervisor who picks up the queue, a documented handoff. A marketplace will tell you they’ll help you find a replacement. Those are not the same answer, and the difference shows up during the exact week you can least afford it.
Push once more on the replacement window. Thirty days is standard. Providers who are confident in their vetting will go longer.
The benchmark answer — numbers versus adjectives
Question 10 is a credibility test. Vendors who run a real reporting operation will give you numbers immediately, with caveats about specialty and payer mix. Vendors who don’t will give you adjectives — excellent, industry-leading, above average.
Benchmarks vary by specialty and payer mix, so treat any single number carefully. The figures most practice managers work against: net collection rate at or above 95%, first-pass resolution above 90%, clean-claim rate above 95%, days in AR as close to 30 as your specialty allows, and charge entry lag under 48 hours from date of service.
Don’t just collect the numbers — ask how they’re calculated. Net collection rate measured against gross charges instead of expected reimbursement produces a flattering figure that means nothing. If you want the full definitions before the call, our guide to the billing analytics and RCM KPIs worth tracking monthly sets out how each one should be measured.
A Two-Week Vetting Sequence You Can Actually Run
Nobody running a practice has time for a procurement process. This one fits into roughly two weeks of ordinary work.
Stage 1 (Days 1–3) — Write down what you’re handing off
Before you speak to anyone, list every task in your current billing workflow and mark each one keep or hand off. Eligibility verification. Charge entry. Coding review. Claim submission. Payment posting. Denial appeal. Patient statements. Collections calls. AR follow-up by aging bucket.
This takes about ninety minutes and it changes every conversation that follows. You stop asking vendors what they do and start telling them what you need — which is a completely different negotiation.
Most practices discover something uncomfortable during this exercise: three or four tasks that nobody currently owns at all.
Stage 2 (Days 4–7) — The email compliance gate
Send questions 1 through 3 by email to every vendor on your list, before scheduling anything. Give them 48 hours.
This one step will cut your list roughly in half, and it costs you no meeting time. Anyone who can’t produce a sample BAA and a straight description of their HIPAA training within two business days has told you what you need to know.
Stage 3 (Week 2) — The operator call, not the sales call
Run questions 4 through 12 live. One call, forty-five minutes, and one condition.
Who needs to be on that call
Ask for the person who would actually manage your account — the operations lead or account manager, not the business development rep. This request is itself a test. Companies with real operational depth will put that person on a call without much fuss. Companies without it will explain why the sales team can answer everything.
Bring your Stage 1 task list and walk it line by line. Every line needs an owner before the call ends.
For practices at this stage, this is where a fully managed model earns its difference: with Care VMA’s medical billing virtual assistant service, the BAA, the HIPAA training records, the coverage plan, and the named account contact all exist before a candidate is ever assigned — and where coding review is part of the scope, our remote medical coder support covers it under the same agreement rather than as a separate line item.
Stage 4 (Weeks 3–6) — The structured pilot
Never sign twelve months off a good call. Run a defined pilot first — one payer, one provider’s claims, or one aging bucket.
What to measure during a pilot
Pick three metrics and agree on them in writing before day one. Claims submitted within 48 hours of service. Denials worked within five business days. Weekly AR movement in the bucket you assigned them.
Four weeks is usually enough to see the pattern. Six is better if your payer mix is slow. Then either scale the scope or walk, and make sure the contract lets you do the second one.
Ramp time is real, and any vendor promising full productivity in week one is selling. In our placements, a billing VMA is typically handling meaningful independent volume somewhere in weeks three to five, depending on EHR complexity and how well documented your workflows were at Stage 1. Our guide to onboarding a medical billing VA covers what that ramp should look like week by week.
Five Mistakes Practices Make While Vetting
These come up often enough that they’re worth naming directly.
1. Comparing an hourly rate against a percentage. Convert everything to projected annual dollars at your real collection volume first. A 6% quote and a $12-an-hour quote can land within a few thousand dollars of each other, or $60,000 apart, entirely depending on your volume.
2. Interviewing the salesperson. A polished discovery call tells you about the company’s marketing budget. Insist on the operator.
3. Leaving denial ownership undefined. If your contract doesn’t name who appeals what, assume nobody does. That assumption is correct more often than it should be.
4. Skipping the specialty question. Behavioral health authorization rules, cardiology device coding, and urgent care modifier logic each fail in their own way. General billing competence doesn’t transfer automatically, and a vendor with no clients in your specialty is learning on your revenue.
5. Signing twelve months with no pilot and no exit. Long contracts aren’t inherently bad — they’re bad without a termination clause and a data-return commitment. Ask what happens to your unworked AR on the day you leave. The answer is rarely in the contract, and it should be.
Also worth naming honestly: a billing VA isn’t right for every practice. If you’re a solo provider with low claim volume and a clean payer mix, the coordination overhead can outweigh the benefit. And if your billing problems come from documentation quality rather than follow-up capacity, adding a biller downstream won’t fix what’s happening at the point of care.
For Groups Ready to Scale: SLAs and Hybrid Staffing
If you’re running five or more providers, the question set above is your floor, not your ceiling. At that size the relationship needs structure that a standard service agreement won’t give you.
Four SLA terms worth negotiating
Turnaround time from date of service to charge entry. Denial working window, expressed in business days rather than “promptly.” Reporting cadence with a defined report structure. Escalation path with a named human and a response window.
Four measurable terms will do more for the relationship than fourteen vague ones. Vendors who resist putting numbers into an SLA are telling you those numbers aren’t currently being hit.
The hybrid split that works for multi-provider groups
The strongest arrangement we see in groups isn’t full outsourcing. It’s a split by function.
Your billing VMAs take the volume work — charge entry, claim submission, payment posting, first-pass denial correction, AR follow-up by aging bucket. Your in-house biller or office manager keeps what depends on relationships and institutional knowledge: payer contract questions, complex appeals, provider-side documentation coaching, and the local escalations that need someone who knows the practice.
That structure scales cleanly. When you add a provider, you add VMA hours rather than reopening a payroll conversation — and the person who understands your payer contracts stays exactly where they’re most valuable.
What to Do With This List
The 15 questions aren’t really about finding the best vendor. They’re about finding out, before money and PHI change hands, which of the three products you’re actually being sold — and whether the answers you get are specific enough to hold someone to later.
Send the compliance questions by email this week. See who responds inside 48 hours. That single filter will tell you more than any comparison page, including this one.
If you’d like to run this question set against us, the Care VMA team is happy to take it in order — BAA sample first. Book a free consultation and bring your Stage 1 task list; that conversation is far more useful than a demo.
Frequently Asked Questions
What is the most important question to ask a medical billing virtual assistant service? Question 1 — will you sign a company-level BAA before system access, and can we see a sample today. It’s the fastest disqualifier available to you, it costs nothing to ask by email, and any hedging tells you how the company treats compliance internally.
How much does a medical billing virtual assistant cost compared with a percentage-based billing company? They’re priced on different logic. Billing VAs are typically hourly or a monthly subscription, so cost stays flat as collections grow. Percentage-of-collections firms generally quote somewhere in the 4% to 10% range according to 2026 industry pricing guides, meaning your billing cost rises with your revenue. Convert both to projected annual dollars at your real volume before comparing.
Can a medical billing VA work inside our existing EHR and practice management system? A managed service should, using named credentials your practice issues with role-based permissions and an access log you can audit. Be cautious with any vendor requiring you to migrate to their platform — that’s a switching-cost decision disguised as a billing decision.
How long before a billing VA is actually productive? Expect meaningful independent volume somewhere around weeks three to five, depending on EHR complexity and how well your workflows were documented before onboarding. Any vendor promising full productivity in week one is describing a sales timeline, not an operational one.
Should we hire a billing VA or a full RCM company? It depends on how much control you want to keep. A billing VA extends your team while you retain your payer relationships, your data, and your workflow decisions. A full RCM company takes the cycle end to end, which suits practices with no internal capacity to supervise billing at all. Groups above five providers most often land on a hybrid of the two.
