How to Become a Certified Medical Biller: A Step-by-Step Guide

Medical billers keep healthcare practices paid. They turn patient visits into insurance claims, follow those claims through to payment, and fix the ones that get denied. If you are organized, detail-oriented and looking for a healthcare career that doesn't involve clinical work, medical billing is worth a close look.

This guide walks you through how to become a certified medical biller, from learning the basics to choosing a certification and passing the exam.

Certification details below were checked against each certifying organization's official website in October 2026. Requirements and fees change, so always confirm on the official site before you register.

The Short Answer

1. Understand what a medical biller actually does.
2. Meet the basic requirements, which usually start with a high school diploma or GED.
3. Learn the fundamentals: terminology, coding systems, insurance and the revenue cycle.
4. Choose the certification that fits your goals.
5. Prepare for the exam with the right materials.
6. Take the exam and earn your credential.
7. Keep your certification active and build real-world experience.

Step 1: Understand What a Medical Biller Does

A medical biller manages the money side of patient care. Day to day, that typically includes:

• Verifying patient insurance and eligibility before or at the visit
• Creating claims from the codes and charges for each visit
• Submitting claims to Medicare, Medicaid and commercial insurance companies
• Following up on unpaid claims and working denials and appeals
• Posting payments, reading Explanations of Benefits (EOBs) and sending patient statements

Billing is closely related to medical coding, but the two jobs are not the same. Coders translate a provider's documentation into standardized codes, and billers use those codes to get the claim paid. Read Medical Billing vs. Medical Coding: What's the Difference? for a full comparison.

Step 2: Meet the Basic Requirements

Most medical billing certifications start with a high school diploma or GED. For example, the NHA's Certified Billing & Coding Specialist (CBCS) exam requires a diploma or GED plus either a completed billing and coding training program or supervised work experience. The AMBA's Certified Medical Reimbursement Specialist (CMRS) exam also requires a high school diploma or equivalent.

You don't need a college degree to get started in many billing roles. According to the U.S. Bureau of Labor Statistics, the typical entry-level education for medical records specialists, the category that includes medical coders, is a postsecondary certificate, and some people qualify with a high school diploma.

Step 3: Learn the Fundamentals

Certification exams assume you already understand how billing works. AAPC, for example, recommends that candidates for its Certified Professional Biller (CPB) credential have a strong knowledge of medical terminology, anatomy and pathophysiology, plus payer policies, compliance rules and the main code sets. Before you choose an exam, make sure you're comfortable with:

• Medical terminology and basic anatomy, so you can read provider documentation
• ICD-10-CM, CPT and HCPCS Level II, the code sets used for diagnoses, procedures and supplies
• The revenue cycle, from patient registration to final payment
• Insurance basics, including Medicare, Medicaid and commercial plans
• Claims, denials and appeals, including clean claims on CMS-1500 and UB-04 forms
• HIPAA and compliance, so patient information is handled correctly

Step 4: Choose a Medical Billing Certification

Several organizations offer recognized billing credentials. The right one depends on your experience and the kind of work you want.

Certification	Offered by	Exam basics	Good fit for
CPB (Certified Professional Biller)	AAPC	135 multiple-choice questions, 4 hours, 70% to pass; approved code books allowed; online with a live proctor or at a testing center	Billing-focused roles in physician practices and billing companies
CBCS (Certified Billing & Coding Specialist)	NHA	Taken at your school, a PSI testing center or with live remote proctoring	Beginners finishing a training program who want both billing and coding
CMRS (Certified Medical Reimbursement Specialist)	AMBA	Online, open-book exam with 16 sections; 85% to pass; AMBA membership required	Billers who want a reimbursement-focused credential they can complete online
CRCR (Certified Revenue Cycle Representative)	HFMA	75 multiple-choice questions in 90 minutes, 70% to pass; online and self-paced	People already working in the revenue cycle (HFMA recommends 1+ year of experience)

Costs at the time of writing: AAPC lists the CPB exam voucher starting at $425. HFMA lists the CRCR as free for HFMA members and $399 for non-members. AMBA membership, required for the CMRS exam, is $99 per year. NHA does not list the CBCS exam fee on its certification page, so check its website or your training provider.

Which one should a beginner choose?

• Want a billing-only credential? The CPB is built specifically around the billing process.
• Want billing and coding together? The CBCS covers both, which can suit smaller practices where one person does both jobs.
• Already working in a hospital or revenue cycle team? The CRCR is designed around revenue cycle operations.
• Not sure yet? Look at job postings in your area, or for the remote roles you want, and note which credentials employers ask for.

Step 5: Prepare for the Exam

Once you've picked a certification, study for that specific exam:

• Get the official outline or test plan so you know exactly which topics are covered.
• Practice with the code books you'll use on exam day. For the CPB, AAPC allows the current year's AMA CPT Professional Edition, ICD-10-CM and HCPCS Level II.
• Take timed practice tests. The CPB gives you four hours for 135 questions, so pacing matters.
• Focus on denials, appeals and payer rules, which come up in real billing work every day.

Step 6: Take the Exam

Many billing exams can now be taken from home. The CPB offers at-home testing with a live remote proctor (an external webcam is required) or testing at a center. The CBCS can be taken at your school, at a PSI testing center or through live remote proctoring. The CMRS is completed online through AMBA's learning system.

Step 7: Keep Your Certification Active and Gain Experience

Earning the credential is not the end. Each certification has renewal rules:

• CPB: keep your AAPC membership active and earn 36 continuing education units (CEUs) every two years.
• CBCS: renew every two years with 10 continuing education credits.
• CMRS: maintain AMBA membership and earn 15 CEUs per year.

At the same time, look for entry-level roles where you can build experience, such as insurance verification, charge entry, payment posting or accounts receivable follow-up. Practical experience makes you stronger on the job and can open the door to more advanced billing and revenue cycle roles.

What Is the Job Outlook?

The Bureau of Labor Statistics reports that employment of medical records specialists, the category that includes medical coders, is projected to grow 8% from 2025 to 2035, much faster than the average for all occupations. The median pay for this group was $51,140 per year in May 2025. Pay for billers varies by location, employer, experience and certification.

Frequently Asked Questions

Do I need a certification to work as a medical biller?

Not always, but it helps. The BLS notes that certification may be required or preferred by employers. See Do You Need a Certification to Work as a Medical Biller? for the full answer.

Can I take a medical billing certification exam online?

Yes. The CPB, CBCS and CMRS all offer online or remotely proctored options, and the CRCR is completed online.

Is medical billing the same as medical coding?

No. Coders assign the codes, and billers turn those codes into claims and get them paid. Many people learn both, and some credentials, like the CBCS, cover both.