Provider Credentialing, Privileging & Enrollment

At MaineHealth, we are committed to ensuring that every provider is thoroughly credentialed, appropriately privileged, and seamlessly enrolled with payors. Our Credentialing Verification Organization (CVO), Medical Staff Services (MSS), and Provider Enrollment Services (PES) teams work in close collaboration to support providers across every stage of their onboarding and ongoing credentialing lifecycle. Together, these teams deliver a streamlined, supportive experience that reduces administrative burden and allows providers to focus on delivering exceptional care to the communities we serve.

Credentialing Verification Organization (CVO)

Our Credentialing Verification Organization (CVO) is a trusted partner in the provider onboarding process. We perform comprehensive primary source verification of education, training, licensure, and professional history in accordance with state regulations and the rigorous standards set by the National Committee for Quality Assurance (NCQA), the Accreditation Association for Ambulatory Health Care (AAAHC), and The Joint Commission (TJC). Staffed by certified medical services professionals, our CVO team delivers a blend of technical expertise and responsive service to support provider readiness and regulatory compliance.

Services Provided:

  • Primary source verification of provider credentials
  • Maintenance of credentialing records
  • Support for initial and recredentialing processes​ 

Contact CVO

Medical Staff Services (MSS)

The Medical Staff Services team ensures that all MaineHealth physicians and advanced practice providers are appropriately privileged and supported in their medical staff roles. We collaborate with hospital leadership, department chairs, and committees to maintain compliance with The Joint Commission, CMS, and state regulatory bodies. In addition to managing the privileging process, MSS coordinates medical staff governance, supports committee operations, and maintains documentation to uphold the integrity of clinical practice across the system.

For inquiries related to privileging and medical staff services, please contact:

Hospital Affiliation Verifications

For hospitals, health plans, or other institutions requiring confirmation of a provider’s affiliation with a MaineHealth facility, please use our CredentialStream verification portal.​

Provider Enrollment Services (PES)

The Provider Enrollment Services (PES) team facilitates timely and accurate insurance enrollment for MaineHealth providers. We manage the submission of enrollment applications, credentialing verification with payors, and ensure providers are correctly linked to MaineHealth across commercial insurers, Medicare, and Medicaid. Our work reduces administrative delays, supports timely reimbursement, and helps providers begin practicing without disruption.

Services Provided:

  • Assistance with payor enrollment applications
  • Guidance on enrollment requirements and timelines
  • Liaison between providers and insurance companies​

Contact Information:

  • Email: PES@mainehealth.org
  • Phone: 207-661-5490
  • Fax: 207-661-8523
  • Mailing Address:
    MaineHealth PES
    1 Riverfront Plaza
    Westbrook, ME 04092