The typical way a practice trains a new biller is to sit them next to the experienced biller for two weeks and then give them the work queue. The experienced biller is busy, the new hire learns the clicks but not the reasons, and six months later the practice has a second person who does things the way the first person does them, including the parts that were wrong. Turnover in billing roles is high, and a lot of it is people who were never actually taught the job leaving before they got good at it.
We onboard billers regularly, both our own and for practices that ask us to train their staff, and over time we have settled on a 90-day structure. It is not complicated. It is organized around what the person should be able to do on their own at 30, 60 and 90 days, and it uses real claims from the practice (de-identified where they leave the building) because the only way to learn billing is to bill.
Key takeaways
- Teach the flow of money before the software. A biller who cannot draw the line from visit to payment cannot find the break in it.
- Month one is the claim, eligibility and rejections. Month two is remittances and denials. Month three is owning one payer or one denial category end to end.
- Check competencies at 30, 60 and 90 days against a written list, not a feeling. Compress the calendar for experienced hires, never the checkpoints.
- Protect the trainer's time. Onboarding fails when the only person who knows the work is also the only person doing it.
The competencies, by checkpoint
| By day 30 | By day 60 | By day 90 |
|---|---|---|
| Read a CMS-1500 and an 837P field by field and explain each | Work a clearinghouse rejection to resubmission without help | Own a payer or a denial category end to end |
| Run and read an eligibility response, including deductible and coinsurance | Post an ERA, identify the CARC and RARC on every adjusted line, and route each | Write a first-level appeal letter that a supervisor approves without edits |
| Explain the difference between a rejection, a denial and an underpayment | Correct and resubmit a claim for the five most common denial codes in the practice | Reconcile a day's deposits to posted payments |
| Look up a CPT, HCPCS and ICD-10-CM code and know which book or tool to use | Explain modifiers 25, 59, 24, 57, 26, TC, LT and RT with a real example of each | Run the AR aging by payer and explain the top three balances |
| Know the practice's top ten payers, their portals and their timely filing limits | Take a patient balance call using the script | Read a payer bulletin and identify what changes for the practice |
Print this table, put the new hire's name on it, and check each cell off with a date and the trainer's initials when it is demonstrated, not when it is explained. The difference between those two things is the whole reason for the plan.
Weeks one to four: how the money moves
Do not start with the software. Start with the flow: schedule, visit, documentation, coding, charge, claim, clearinghouse, payer, remittance, posting, patient statement. Draw it on a whiteboard and have the new biller draw it back the next day. Everything they will ever fix is a break somewhere on that line, and a biller who cannot picture the line cannot find the break.
Then the claim form. Take five real claims, print them, and go through every field: box 24 line items, the diagnosis pointers, the rendering and billing NPIs, the place of service, the prior authorization field. Then the same five claims as an 837 file, so they understand that the form is a picture of data, not the data itself.
Eligibility comes next, because it is the first thing that goes wrong. Run twenty eligibility checks together. Read the response: active or inactive, plan name, copay, deductible remaining, coinsurance, whether the plan is primary. Then have them run twenty alone and quiz them.
Finish the first month with rejections. The clearinghouse rejection report is the best teaching tool in the practice because every line has a stated reason and a fix. Work fifty of them together over two weeks. By the end of the month the new biller should be able to look at "subscriber ID invalid" or "rendering provider not found in payer file" and know which screen to open and who to ask.
Weeks five to eight: remittances and denials
The second month is about reading what the payer sent back. Take an ERA and go line by line: billed, allowed, paid, patient responsibility, adjustment codes. Teach the difference between CO (contractual, the practice absorbs it), PR (patient responsibility, bill the patient) and OA (other). Then teach the codes that matter most in your practice: CO-45 is contractual and fine; CO-97 is bundling and needs a look; CO-197 is a missing authorization and needs a process fix; CO-29 is timely filing and should never happen.
Denial correction is where the learning accelerates. Give the biller the five most common denial codes in the practice and twenty real denied claims for each. For each claim: what did the payer say, what actually went wrong, what is the fix, and what would have prevented it. That fourth question is what separates a biller from a claims clerk.
The patient balance script goes in this month too. Ten calls with the trainer listening, then ten alone. Most new billers are more nervous about the patient call than about anything on the payer side, and the fear goes away only with the tenth call.
A training week, hour by hour
Practices ask what the plan looks like on a Tuesday. Here is week six for a biller in a three-provider orthopedic practice, which is fairly typical of the middle of the program.
| Block | Activity | Who |
|---|---|---|
| Morning, first hour | Post the overnight ERAs with the trainer watching; trainee names the CARC on every adjusted line | Trainee, trainer observing |
| Morning, remaining | Work ten CO-197 denials from the practice's real queue: find the authorization, correct or appeal, write one sentence on prevention for each | Trainee alone; trainer reviews before submission |
| Midday | Two patient balance calls with the trainer listening, then two alone | Trainee |
| Afternoon, first hour | Modifier session: 25, 59 and RT/LT using five of the practice's own injection and E/M claims | Trainer teaches |
| Afternoon, remaining | Correct and resubmit five CO-4 denials; trainer checks each before it goes out | Trainee |
| Friday, last hour | Three-line report: what I worked, what I fixed, what I could not solve | Trainee to trainer |
About half the day is real work with a safety check, a quarter is teaching, and a quarter is the trainee alone. The trainer's time is roughly two hours a day, which is the number to plan around when the trainer also has a queue.
Weeks nine to twelve: ownership
By the third month the new biller takes ownership of something small and whole. In most practices that is one payer or one denial category. They work it every day, they report on it every Friday in three lines (how many, how much, what changed), and they bring the ones they cannot solve to the Friday review. Appeal writing is taught here using the payer's own denial reasons; the first three letters are edited heavily, the next three lightly, and by the sixth the trainer is just approving.
The final week includes reconciliation: deposits to postings, for one day, then one week. A biller who can reconcile understands the whole system. It is also the checkpoint where gaps show up, because a posting error made in week seven appears as an unreconciled dollar in week twelve.
Mistakes that tell you where to slow down
- Resubmitting a denied claim unchanged "to see if it goes through this time". They do not understand the denial reason. Go back to the ERA reading.
- Writing off a balance to make a queue shorter. They do not understand that adjustments are money. Go back to the CO/PR distinction and the practice's write-off policy.
- Calling the payer before reading the remittance. They are treating the phone as the first step instead of the last. Have them write down what they expect the payer to say before dialing.
- Changing a code to get a claim paid. Stop everything and explain why this is fraud, not a fix. Coding changes come from the coder with documentation support.
- Working the queue top to bottom by date. They have not learned that dollars and deadlines rank the work. Teach them to sort by timely filing date first and balance second.
Where practice charts help
Training on live claims is ideal but has limits: you cannot let a trainee send a real claim wrong, and you cannot always find an example of the exact scenario you want to teach. A training EHR with realistic but fictional patients, charges and remittances fills the gap. It is how we run our own live RCM courses, using the Revelrex EHR so that learners can post payments, work denials and build appeals against charts that look like the ones they will meet, without a real patient behind them. Practices can use the same environment for their own onboarding.
Questions we hear
Ninety days seems long. Can we compress it?
You can compress the calendar if the person has prior billing experience, but do not skip the checkpoints. An experienced biller from another specialty still needs the first month on your payers, your codes and your flow. Check the competencies; if they pass at day 15, move on.
Who does the training if the experienced biller is the only one who knows the work?
Then the experienced biller trains and their queue gets covered for a few hours a day, or an outside trainer does the first two months and the experienced biller does the third. Trying to train without protecting the trainer's time is how onboarding fails.
What about certification?
A billing certification from a recognized body is a reasonable goal for the end of the first year. It is not a substitute for the 90 days; certifications test knowledge, and the 90 days build habits.
What to do this week
- Print the competency table, name the trainer, and block two hours a day on the trainer's calendar for the first month.
- Pull five real claims, twenty eligibility responses and fifty clearinghouse rejections to use as the first month's material.
- Write the practice's top ten payers, their portals and their timely filing limits on one page for the new hire's desk.
- Pick the payer or denial category the new biller will own in month three, so the first two months build toward it.
- Set the Friday three-line report habit from the first week.
