Are you a healthcare provider wondering how to start billing Medicaid and Medicare for your services? Getting credentialed can feel like an overwhelming process, filled with paperwork, strict CMS credentialing requirements, and long wait times. But don’t worry—this guide breaks down the Medicare and Medicaid credentialing process into simple, actionable steps, helping you avoid common mistakes and get approved faster.Â
Whether you’re a solo practitioner or part of a group, this guide will walk you through everything you need to know to start accepting Medicare and Medicaid patients with confidence.Â
Credentialing is the process of verifying a healthcare provider’s qualifications, licensure, and compliance with CMS standards. Both Medicare and Medicaid require this step to ensure that providers meet regulatory and quality-of-care standards before they can bill for services.
Each program has its own application process, timelines, and state-specific requirements that healthcare providers must navigate.
Before applying for Medicare credentialing, ensure you meet the CMS credentialing requirements:
Your NPI is a unique 10-digit number that identifies you as a healthcare provider. This number is mandatory for billing Medicare and Medicaid.
Tip: Ensure all details match across your NPI, tax records, and enrollment forms to avoid processing delays.Â
To apply for Medicare credentialing, providers must submit the CMS-855B application. You can do this in two ways:
Online via PECOS (Preferred Method)
Paper Application (Slower Process)
Using PECOS can significantly reduce processing time compared to mailing paper applications!
Once your application is submitted, it is reviewed by your region’s Medicare Administrative Contractor (MAC). The MAC ensures all CMS credentialing guidelines are met before granting approval.
How long does it take to get credentialed with Medicare?
The process typically takes 60-90 days, but it can be delayed if there are errors in your application.Â
Each state manages its own Medicaid credentialing process, so requirements and timelines may vary.
Since Medicaid programs differ by state, check your state Medicaid website to review specific requirements
General Medicaid credentialing requirements:
Providers must enroll in each state where they intend to see Medicaid patients.Â
Once you confirm eligibility, obtain and fill out your state’s Medicaid provider enrollment application.
Some states use CAQH ProView, while others require providers to submit applications directly through the Medicaid agency’s online portal.
Documents typically required:
How long does it take to get credentialed with Medicaid?
👉 Depending on the state, it can take 30-180 days for approval.
Most states require Medicaid providers to undergo:Â
✔ Criminal background checks
✔ Fingerprinting (in some cases)
This ensures that only qualified and ethical providers serve Medicaid patients.
Once your application is submitted, Medicaid may conduct a practice site inspection to verify compliance with CMS credentialing guidelines.
If approved, you’ll receive a Medicaid Provider Number (MPN), which allows you to:
✔ Criminal background checksÂ
✔ Criminal background checks
If your application is delayed, follow up with your state’s Medicaid office to check the status.
Getting credentialed with Medicaid and Medicare is only the first step. To ensure uninterrupted billing and reimbursement, you must maintain compliance and avoid common mistakes that can lead to delays, denials, or even revocation of your credentials.
Not Submitting All Required Documentation: Many providers face delays simply because they forget to attach necessary documents like malpractice insurance, tax ID, or licensing verification. Always double-check your application before submission.
Providing Incorrect or Inconsistent Information: Your NPI details, business name, and tax ID must match exactly across all forms, including PECOS, CAQH, and state Medicaid applications. Even a minor discrepancy can cause rejections.Â
Missing Important Deadlines
Not Following Up on Your Application: If you haven’t heard back in 60 days for Medicare or 90 days for Medicaid, contact your MAC or state Medicaid office. Applications sometimes stall due to missing information.
Ignoring CMS Credentialing Guidelines Updates: Medicare and Medicaid regulations change frequently. Stay updated by:
✔ Checking CMS.gov regularly
✔ Joining provider forums or credentialing groups
✔ Attending webinars or workshops on compliance
Once credentialed, you must stay compliant with CMS credentialing requirements to avoid disruptions in reimbursement.
For Medicare, you can update information through PECOS; for Medicaid, use your state’s provider portal.
Pro tip: Mark your calendar to start the re-credentialing process at least 6 months before your deadline to avoid interruptions in billing.
Once you’re credentialed, improper billing can still put your Medicare or Medicaid provider status at risk.
Common Billing Mistakes to Avoid:
Regularly review Medicare and Medicaid billing guidelines. Conduct internal audits to ensure compliance with CMS credentialing requirements.
Getting credentialed with Medicaid and Medicare is a crucial step for healthcare providers who want to serve a broader patient base and receive proper reimbursements. While the process can be complex and time-consuming, following a structured approach, ensuring accuracy in your application, and staying proactive can significantly speed up approval.
