Facility credentialing — sometimes called organizational or entity credentialing — is the process of getting a hospital, ambulatory surgery center, clinic, or laboratory itself recognized, enrolled, and contracted to deliver and bill for care, as distinct from credentialing the individual clinicians who work inside it. It runs on a completely different set of rails than provider credentialing: CLIA certificates for labs, the CMS-855A (or 855B) for Medicare enrollment, accreditation from bodies like The Joint Commission, and a Type-2 organizational NPI. Here is how the pieces fit together.
How facility credentialing differs from provider credentialing
Provider credentialing verifies a person — their license, education, board status, work history, and malpractice record — largely through primary-source verification. Facility credentialing verifies an organization: its Medicare enrollment, accreditation or state survey, CLIA status (if it performs lab testing), liability coverage, ownership disclosures, and its Type-2 NPI. Payers contract with the entity separately from the clinicians, and a facility can be fully enrolled while its providers are still in process — or the reverse. Treating the two as one workstream is the most common facility-credentialing mistake, and it is why organizations often run entity work as its own line, sometimes through a CVO.
CLIA: credentialing the laboratory
Any facility that tests human specimens for diagnosis or treatment — even a physician office running a single waived analyzer — must hold a CLIA certificate under the Clinical Laboratory Improvement Amendments. CMS recognizes five certificate types, tied to the complexity of the testing performed:
- Certificate of Waiver (CoW) — for waived tests only, such as urine dipsticks, rapid strep, or blood glucose.
- Certificate for Provider-Performed Microscopy (PPM) — adds a defined set of microscopy procedures a physician, midlevel, or dentist performs during a patient visit.
- Certificate of Registration — an interim certificate that lets a lab perform moderate- and high-complexity testing while it awaits its compliance or accreditation survey.
- Certificate of Compliance (CoC) — issued after a CMS or state survey confirms compliance for non-waived testing.
- Certificate of Accreditation (CoA) — issued when a CMS-approved accreditor, such as CAP, COLA, or The Joint Commission, deems the lab compliant.
CLIA certificates are generally effective for two years, and a CLIA number is issued per testing location. See CMS's Types of CLIA Certificates for the authoritative breakdown.
CMS-855A: enrolling the facility in Medicare
The CMS-855A is the Medicare enrollment application for institutional providers — hospitals, critical access hospitals, skilled nursing facilities, home health agencies, hospices, and ESRD facilities — that bill Part A on the UB-04 (CMS-1450) claim form. Approval ties the facility to a CMS Certification Number (CCN) and typically depends on a successful state survey or accredited deemed status. One nuance the article title invites: ambulatory surgery centers do not use the 855A. ASCs enroll as Part B suppliers on the CMS-855B, and independent labs and group practices enroll on the 855B as well. Matching the entity to the correct 855 form is the first fork in facility enrollment — get it wrong and the application is returned. More on the mechanics in our Medicare enrollment and PECOS guide.
Accreditation and deemed status: TJC, DNV, HFAP, AAAHC
Most facilities pursue accreditation from a CMS-approved accrediting organization (AO). Under deemed status, a successful AO survey substitutes for the routine CMS or state survey, because the AO's standards are recognized as meeting the Medicare Conditions of Participation (for hospitals) or Conditions for Coverage (for ASCs and labs). The major AOs:
- The Joint Commission (TJC) — hospitals, ASCs, laboratories, behavioral health, home care, and more.
- DNV Healthcare — hospitals; its standards integrate the ISO 9001 quality framework and map directly to the CMS Conditions of Participation.
- HFAP (now operated under ACHC) — hospitals, ASCs, and other facility types.
- AAAHC — a leading accreditor for ambulatory settings, including ASCs and office-based surgery.
CMS publishes the authoritative list of approved AOs and the facility types each may deem — see the CMS Accrediting Organizations page, and, for ambulatory settings, AAAHC and TJC ASC accreditation.
Type-2 NPI and payer facility contracts
Every facility needs a Type-2 (organizational) NPI, distinct from the Type-1 (individual) NPIs its clinicians hold; large health systems often assign Type-2 NPIs to subparts as well. With the NPI, CLIA (where applicable), Medicare enrollment, and accreditation in hand, the facility then pursues facility contracts with commercial payers and Medicaid. Payers credential the entity on its own track — requesting the CMS enrollment, accreditation certificates or deemed status, CLIA certificate, W-9, liability face sheet, and ownership disclosures — and issue a facility participation agreement separate from any individual provider's in-network status. This is the entity-level parallel to credentialing vs. payer enrollment on the provider side.
State facility licensure is a separate layer
Federal enrollment and accreditation do not replace state authorization. Most states require a hospital, ASC, or clinical laboratory to hold a state facility license or permit issued by the state health department, and a laboratory may need a state lab license on top of its CLIA certificate. For facilities that do not carry accredited deemed status, the state survey agency also performs the Medicare certification survey on CMS's behalf. The practical implication is that facility credentialing spans three parallel authorities — state licensure, federal Medicare enrollment, and accreditation or survey — and a facility can fully satisfy one while a gap in another quietly blocks billing. Sequencing them so none becomes the surprise bottleneck is much of the work.
Revalidation, ownership, and staying enrolled
Enrollment is not one-and-done. Medicare requires institutional providers to revalidate their enrollment on a recurring cycle (generally every five years), and any change of ownership, practice location, or authorized official must be reported on the 855 within strict timeframes — often within 30 days for ownership and control changes. The 855A also demands detailed ownership and managing-control disclosures, and a missed reporting deadline or a stale record is a common reason an otherwise-compliant facility gets flagged or deactivated. Facility credentialing, in other words, is a maintenance discipline as much as an onboarding one, and the entity file has to be kept current between surveys, not rebuilt at each one.
How long facility credentialing takes — and what stalls it
A greenfield facility file commonly runs several months, and the long poles are predictable: scheduling the accreditation or state survey, waiting on the CMS Certification Number after a successful survey, and then the payer facility-contracting queue, which can add its own 60 to 120 days. The fastest files parallel-path what can be parallel-pathed — the Type-2 NPI, the CLIA application, and the 855 submission early — while sequencing what genuinely depends on a prior step, such as payer contracts that require proof of Medicare enrollment or deemed status before they will load the facility. The slowest files are the ones that discover a missing ownership disclosure, or the wrong 855 form, only after submission and a rejection.
Putting the facility file together
A clean facility file sequences the dependencies rather than fighting them: the Type-2 NPI first, then CLIA and the correct 855 form, then accreditation or state survey and deemed status, then payer facility contracts — each step feeding the next. Because facility credentialing is a genuinely distinct discipline from provider work, CredTek runs it as a separate line: a done-for-you team plus platform that assembles the entity file end to end, with a human approval gate before anything is submitted, so a new hospital, ASC, or lab reaches enrolled-and-contracted status without the months of back-and-forth that stall the first claim.
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