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CMS-855S Error Check & Filing
Submit a flawless Medicare DME application—first time, every time.
Your First Step to Medicare DMEPOS Billing Approval
What Is CMS-855S?
CMS-855S is the Medicare enrollment application every Durable Medical Equipment, Prosthetics, Orthotics & Supplies (DMEPOS) supplier must submit to receive—or keep—a Provider Transaction Access Number (PTAN). Any errors in this 40-plus-page document can stall cashflow, trigger site visits, or even revoke billing privileges. That’s why expert review and error prevention are critical for new applicants and revalidating suppliers alike.
Let us help you file it right—the first time.
Common Pitfalls & Costs
Why CMS-855S Errors Are So Costly—And How We Help You Avoid Them
Filing the CMS-855S may seem straightforward, but even experienced DMEPOS suppliers often run into avoidable mistakes that lead to application rejections, billing delays, or compliance flags. Here are the most common issues we see—and the tools we use to fix them before they become problems.
Common Filing Mistakes
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Missed Sections
Omitting required fields—especially those related to surety bonds or practice location—can trigger immediate rejections. -
Inconsistent Ownership Disclosures
Discrepancies in EINs, business structures, or managing control statements may raise fraud red flags with CMS reviewers. -
Expired Supporting Docs
Including outdated state licenses, insurance coverage, or bond certificates can delay approvals by weeks. -
Incorrect Product Codes
Selecting the wrong HCPCS product categories may result in limited billing access—or denial of certain DME claims altogether.
How We Prevent These Errors
THE PROCESS
Our Error-Check & Filing Workflow
01.
Intake & Document Scrub
Clients upload draft CMS-855S and all required attachments into Lavear. Our compliance specialists cross-check EIN, NPI, surety bond, and licensure dates.
Line-by-Line Validation
Automated rules + human review verify every checkbox, signature block, and supplier standard.
02.
03.
CMS Upload & Confirmation
We file through PECOS or mail, track FedEx receipts, and log CMS acknowledgement letters.
Reduce CMS errors and protect your revenue
CMS-855S Filing Benefits
Accurate CMS-855S filing is critical for DMEPOS suppliers to receive and retain their Medicare billing privileges. Errors in your application can delay PTAN approval, disrupt PECOS alignment, and put your revenue at risk. Our compliance team ensures every form is complete, correct, and audit-ready—so you can focus on growing your business, not fixing paperwork.
Ready for zero-error Medicare enrollment?
Contact Us
Let's Talk Compliance
Understand CMS-855S in one place
Frequently Asked Questions About CMS-855S
What is the processing time for a CMS‑855S application?
Online CMS‑855S submissions through PECOS are processed in approximately 45 days, while paper applications can take up to 60 days, depending on MAC backlog and completeness.
Who must file CMS‑855S and when is it required?
Any DMEPOS supplier must submit CMS‑855S when enrolling initially, adding or changing locations, undergoing ownership or Tax ID changes, revalidating every 3–5 years, or reactivating a deactivated billing number.
What are the most common reasons CMS rejects a CMS‑855S?
CMS rejects applications due to missing sections (like surety bond or accreditation), mismatched NPI/TIN/NPPES data, expired licenses or bonds, and incomplete ownership disclosures.
Is a surety bond or liability insurance required for CMS‑855S?
Yes, DMEPOS suppliers must include a $50,000 surety bond and at least $300,000 liability insurance per incident as specified in 42 C.F.R. § 424.57(c)(10–d).
When did CMS revise the CMS‑855S form, and why does it matter?
A revised CMS‑855S took effect after April 7, 2023, adding fields like Medical Record Correspondence Address and updated product accreditation data—using the current version is mandatory.