Every primary source, state portal and exclusion list, all in one place.

Free, link-checked, vendor-neutral resources for MSPs, payor/CVO teams, enrollment staff and the providers they credential.

Quick facts

Key credentialing rules at a glance. Always confirm with the source.

NCQA

Most verifications: 120 days

For NCQA Credentialing Accreditation and health plan accreditation, most primary-source verifications must be no more than 120 days old at the credentialing decision (files processed on or after July 1, 2025).

Source: NCQA credentialing guide (PDF) (opens in new tab) · More

NPDB

Hospitals query every 2 years

Hospitals must query the NPDB when granting privileges and every 2 years for everyone on staff or with privileges.

Source: 45 CFR 60.17 (opens in new tab) · More

What’s new

  • New Medical Staff Office Directory on Affiliations: all 5,419 U.S. hospitals in CMS’s Hospital General Information data, with medical staff office and verification contacts confirmed on hospitals’ own websites. You can search by name or city and filter by state and type.
  • Added resources from Summit Healthcare’s Credentialing Resource Verifications page and our own research. Affiliations now lists facility contact directories, CMS facility lookups, HCA and CommonSpirit affiliation portals, and NPRC military records. Education has a new table of training program verification contacts and the World Directory of Medical Schools. PSV adds the ABMS member boards list, SCRA active-duty status and NCC, AMCB, PNCB, ABCP and NBSTSA certification lookups. Malpractice adds University of California and Mayo Clinic, and States adds the Arizona State Board of Nursing.
  • Education: the school directory now covers dental, podiatry, optometry, chiropractic, pharmacy, PA, nurse anesthesia and nurse-midwifery programs alongside MD and DO, with links to the NP, psychology, audiology, PT, OT and anesthesiologist assistant accreditors.
  • Education and Affiliations are now separate tabs: hospital affiliation verification has its own Affiliations page.
  • State directory: broken links fixed and Medicaid enrollment and exclusion list links filled in.
  • PSV sources expanded: CMS Preclusion List, non-physician license boards, podiatry boards and more.
  • New All Things Credentialing logo in the header and on Home.
  • Added NCQA's 120/180-day verification time limits to the Accreditation page.
  • New Providers tab: a plain-language credentialing guide for physicians and APPs.
  • Renamed the site to All Things Credentialing.
  • New Quick start and Software tabs.
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