Medical biller job description and interview questions

Copy the template, ask these questions, then hear every applicant explain a bill to a confused patient.

Job description

[Practice name] is hiring a medical biller to submit clean claims, follow up on unpaid ones and help patients understand what they owe and why.

Responsibilities

Prepare and submit claims to commercial payers, Medicare and Medicaid
Review denials and rejections, correct them and resubmit or appeal
Post payments and adjustments and reconcile them against remittance advice
Verify eligibility and benefits before scheduled visits
Answer patient billing calls and explain statements in plain language
Set up payment plans within office policy
Keep billing records accurate and protect patient information

Requirements

Two years of medical billing experience
Working knowledge of CPT, ICD-10 and HCPCS codes
Experience reading EOBs and working denials
Comfortable in a practice management or billing system and payer portals
Patient, clear phone manner

Nice to have

Billing certification such as CPB or CMRS
Experience in our specialty
Experience with prior authorisations

Interview questions to ask a medical biller

1
A patient was charged $50 after a wellness visit she expected to be free. How do you explain it?
Listen for: Explains that a problem addressed in the same visit is billed separately, without blaming her.
2
A payer you are in network with suddenly denies claims as 'not participating'. What could cause it?
Listen for: More than one cause: the provider is not linked to the group contract, a wrong NPI or tax ID on the claim, or the patient moved to a plan you are not in.
3
An office visit billed on the same day as a vaccine is denied, but the vaccine is paid. Why, and how do you fix it?
Listen for: Modifier 25 on the visit, with notes that show a separate problem was treated.
4
A procedure is denied as 'not covered under the LCD'. What is likely wrong?
Listen for: The diagnosis does not support medical necessity under the local coverage rule. Reads the policy before resubmitting.
5
What is the allowed amount on an EOB, and what does it include?
Listen for: The payer's payment plus the patient's share: copay, deductible and coinsurance.
6
What is the difference between a rejection and a denial?
Listen for: A rejection never entered the payer's system; a denial was processed and refused.
7
A patient says she cannot pay her balance. What are your next steps?
Listen for: Offers the options the policy allows and keeps the conversation respectful.
8
A caller asks about her husband's bill. What do you check before answering?
Listen for: Confirms she is authorised on the account before sharing anything.

Answers are rehearsed. A call is not.

GreetAI plays the patient. Every applicant takes the same 5 to 10 minute call, out loud, from a link, before you spend an hour interviewing them. You get a score, a summary and the full transcript.

A patient who was billed $50 after her annual wellness visit

“I was told this visit was covered. Why did I get a bill for fifty dollars?”

A strong medical biller

Finds the reason: the visit was billed with two codes
Explains it in everyday words, not billing terms
Tells her what happens next and what she can do

Flagged for you

Could not say why two codes were billed
Promised to remove the charge
Blamed the patient or the front desk

GreetAI can also run a spoken knowledge interview: it asks your hardest denial questions and asks for more when an answer is thin.

Try it on this role

$99 a month for 100 applicants, or book a demo

Common questions

What should a medical biller job description include?

A short summary of the role, the daily responsibilities, the requirements you will really screen for, and the shift. Keep it to what a new hire does in the first month.

How do you test a medical biller before hiring?

Give every applicant the same realistic situation and listen to how they handle it. With GreetAI, the AI plays a patient who was billed $50 after her annual wellness visit, and each applicant comes back with a score, a summary and the transcript.

How much does GreetAI cost?

$99 a month for 100 applicant sessions, or $200 a month for 500. Larger volumes get a custom plan.