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Medicare PECOS enrollment, explained

PECOS is Medicare's online enrollment system. Individual providers enroll (or revalidate) through it, practices link providers to group records, and mistakes here are expensive: a rejected application can push your Medicare start date back months.

How it works

Enrollment runs through your Medicare Administrative Contractor (MAC). You'll need your NPI, license, and practice details; groups also need their Type 2 NPI and EIN linkage. Typical processing is 45–90 days — faster than most commercial payers — but corrections are common, and each one adds weeks.

Why applications bounce

Mismatched legal names between IRS records and the application, wrong practice location types, missing supporting documents, and surrogacy/authorization problems when someone files on your behalf without proper CMS Identity & Access approval. A clean first submission is the difference between six weeks and four months.

Provider Enrollment Credentialing Services handles all of this at flat, published pricing: applications go out within days of a complete intake, every payer is followed up every 14 days, and status is visible anytime by reference number. Start your intake or see pricing.