What is medical credentialing?
Medical credentialing is the process an authorized organization uses to verify a healthcare provider's qualifications, such as education, training, licenses, work history, board status, malpractice coverage, sanctions, and other applicable information. The payer, facility, or credentialing body applies its standards and makes the decision. Credentialing is separate from licensure, payer enrollment, contracting, and clinical privileging.
Does credentialing approval mean a provider is in-network and ready to bill?
Not always. Credentialing approval may be followed by contracting, payer enrollment, group or TIN linkage, product participation, effective-date assignment, directory updates, and claims-system loading. Confirm these milestones in writing before treating the provider as active for billing.
How long does the credentialing process take?
Timing varies by payer or program, provider type, jurisdiction, application completeness, screening, site visits, closed panels, and requests for more information. Medicare does not provide a universal 60-to-90-day promise. For certain physicians, practitioners, and organizations, the effective date is generally the later of the approved application's filing date or the date services began at the enrolled location. Up to 30 days of retrospective billing may be available only when the applicable requirements are met; it is not an automatic grace period. Always rely on the written approval and effective-date notice for the specific enrollment.
What is a CP 575, and can Letter 147C verify an EIN?
A CP 575 is an IRS notice confirming that a business received an Employer Identification Number. Letter 147C verifies an EIN that was already assigned; it is not a duplicate of the original legacy notice. In 2026, eligible Business Tax Account users can also download a digital CP 575. Medicare enrollment instructions request written IRS confirmation in applicable cases, but acceptable evidence can vary by enrollment form and current instructions. Use the document requested for the specific application rather than assuming CP 575 and 147C are the only accepted records.
What documents are required for credentialing?
Typically, you will need to provide licenses, certifications, education and training records, work history with explanations for applicable gaps, board information, malpractice coverage and history, professional references, W-9 and tax records, NPI information, practice locations, ownership details, banking information for enrollment, and payer-specific forms. Requirements vary by payer, program, provider type, entity, and jurisdiction.
What do NPPES CAQH and PECOS each do?
NPPES assigns and maintains NPI records. CAQH is a provider-maintained data-sharing platform used by participating organizations for credentialing, directories, enrollment, and related functions. PECOS supports Medicare enrollment administration. None of these systems alone proves that a provider is licensed, contracted, in-network, or entitled to payment.
How does Medicaid enrollment differ from Medicare enrollment?
Medicaid programs are administered by states. Portals, provider types, screening, fees, documents, location rules, managed care enrollment, effective dates, and revalidation can vary. A provider may need separate state Medicaid and managed care plan steps, so the workflow should be researched for each state and payer product.
Is DMEPOS enrollment part of ordinary physician credentialing?
No. Medicare DMEPOS supplier enrollment follows a distinct pathway and may require accreditation, licensing, location-specific NPIs, a surety bond, an application fee, EFT, product-specific compliance, and a site visit. Requirements and exceptions should be reviewed for the supplier and each location.
Can you handle credentialing for multiple specialties?
Our team can support providers across a range of medical specialties. Before engagement, we confirm the provider type, taxonomy, services, licenses, locations, payers, and any specialty-specific or facility requirements included in scope.
What happens if an application is returned denied or a payer panel is closed?
If an application is returned or denied, we work with you to identify the reason, gather available documentation, and support correction, resubmission, reconsideration, or appeal when the program or payer offers one. If a network panel is closed, we document the affected product, payer response, possible review date, and available alternatives. A corrected or resubmitted application does not guarantee approval.
Who owns the accounts and provider data?
The provider or organization should retain control of its NPPES, CAQH, CMS I&A, PECOS, payer, and licensing records. Access should use authorized roles where available, and the service agreement should define permissions, document handling, offboarding, and data return. Providers and authorized officials remain responsible for required signatures and attestations.
