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Medicare

What Is PECOS? How Medicare’s Provider Enrollment System Works and Why It Matters

January 31, 2026 / Alex J. Lau / CMS, Medicare, Medicare Enrollment, PECOS
Female Medical Doctor PECOS User

PECOS, the Provider Enrollment, Chain, and Ownership System, is the CMS web-based portal through which healthcare providers and suppliers enroll in Medicare, update their enrollment information, and manage their participation status. Any provider who wants to bill Medicare for services must have an active, accurate PECOS enrollment record. Billing Medicare without an active enrollment, or […]

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CMS, Medicare, Medicare Enrollment, PECOS

Getting In-Network with Medicare

October 9, 2025 / Alex J. Lau / Medicare
Medical Doctor in Need of Credentialing

Being in-network with Medicare comes down to one decision that many providers never realize they are making, which is whether to participate, stay non-participating, or opt out entirely. Enrollment gets you into the program, and this choice decides how Medicare pays you and what you can charge patients. This post covers that choice, how it […]

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In-Network Credentialing, In-Network with Medicare, Medicare, Medicare In-Network

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Recent Posts

  • Blue Cross Blue Shield (BCBS) Credentialing

    BCBS Credentialing by State: What Changes and What Doesn’t

  • Management Service Organization (MSO) CEO

    Management Services Organizations: What Private Practices Need to Know Before Signing

  • Payer Contracting Scene. A Provider and Payer.

    In-Network vs. Out-of-Network Contracting: Which Pays More for Your Specialty?

  • Provider Credentialing Specialist

    Why You Can’t Bill What You Can’t Credential

  • Full-Cycle Medical Credentialing Support Expert

    Affordable, Full-Cycle Credentialing: Why the Price Drops the More You Buy

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