Primary Source Verification
Primary source verification (PSV) explained for healthcare staffing: what counts as a primary source, how to verify licenses, Nursys and what facilities expect.September 25, 2026
5 min read
Compliance & Credentialing
Written by the NextCrew team
Definition
Primary source verification (PSV) is confirming a credential directly with the organization that issued it, such as a state board of nursing, instead of trusting a copy the candidate provides. Healthcare facilities and staffing agencies use it to confirm licenses, certifications and education are real, current and unrestricted.
A photocopy proves someone has a document; primary source verification proves the document is true. It is one step in credentialing, and in healthcare staffing it is the step a facility is relying on when it lets a clinician from your agency onto a unit.
What counts as a primary source?
| Credential | Primary source | What you confirm |
|---|---|---|
| RN or LPN license | The state board of nursing, or Nursys | Status, expiration, discipline, multistate privilege |
| Physician license | The state medical board | Status, expiration, board actions |
| Board certification | The certifying board | Certified, and through when |
| BLS, ACLS, PALS | The issuing organization's card verification | Card is genuine and current |
| DEA registration | The DEA | Active registration and schedules |
| Education | The school or its designated clearinghouse | Degree and dates |
Screening the federal exclusion list (OIG LEIE) is a related check, not PSV, but most healthcare credentialing does both.
Why does primary source verification matter for staffing agencies?
Because the facility is trusting your file. When a hospital or clinic accepts a clinician from an agency, it is relying on the agency to have checked. Accreditation programs for healthcare staffing firms, such as The Joint Commission's Health Care Staffing Services certification, expect that verification to be done and documented.
Documents can be faked. In 2023 the U.S. Department of Justice announced charges in Operation Nightingale, a scheme that sold more than 7,600 fraudulent nursing diplomas. A copy of a diploma or a license card would not have caught it; checking with the source is what does.
Is primary source verification the same as credentialing?
No. Credentialing is the whole process of collecting and evaluating someone's qualifications; primary source verification is the step where each credential is confirmed with its issuer. Credentialing also includes things like work history, references, background checks, health records and facility-specific requirements.
Is Nursys primary source verification?
Yes, for nursing licenses. NCSBN, which runs Nursys, states that Nursys data is compiled from information entered directly by boards of nursing and is primary source equivalent. Check which verification types your state board supplies, and keep the verification result with the date you ran it.
How do you do primary source verification?
- 1Collect the credential
License number, issuing state or body, and a copy for the file.
- 2Identify the primary source
The issuer, or a database the issuer designates as primary source equivalent.
- 3Verify status, not only existence
Active, expiration date, any discipline or restriction, and for nurses, multistate privilege.
- 4Record the evidence
Date, method, result and who ran it. An unrecorded check is hard to prove later.
- 5Re-verify on a schedule
At every renewal, and whenever you are alerted to a change. A license verified at hire can lapse or be restricted later.
Where agencies get primary source verification wrong
- Accepting screenshots or card photos as verification. They are copies, not the source.
- Verifying once, at hire. Status changes between renewals. Monitoring catches it.
- Checking existence, not restrictions. An active license with a board action attached is not the same as a clear one.
- Not keeping the proof. Facilities and surveyors ask when and how you checked.
- Assuming a multistate license covers every state. Compact privileges have conditions. Confirm the privilege for the state of the assignment.
Bottom line: the question a facility is really asking is not whether you have a copy of the license. It is whether you checked it with the source, when, and what you found.
How NextCrew handles primary source verification
- Nursys integration. NextCrew verifies RN and LPN license status, disciplinary flags and compact eligibility through Nursys, and stores the result on the Crew Member's profile.
- Expiration tracking. Every license and certification's expiration date is tracked; the Crew Member is reminded on their phone and the agency team is notified as it approaches.
- Expiring credentials in view. An expiring licenses and certifications widget can be configured for a 30, 60 or 90-day window.
- Required documents. License and certification types can require an attachment, so the record cannot be saved without the document.
- Credentialed-only jobs. The Verified job privacy setting makes a job visible only to credentialed Crew.
See the Nursys integration and healthcare staffing software.
Frequently asked questions
Related terms
- Credentialing: the full process of collecting and evaluating a clinician's qualifications, of which PSV is one step.
- Staffing agency license: the state registrations the agency itself needs.
- MSP: the provider that often sets credential requirements for a health system's contingent workforce.
- Time to fill: how long it takes to fill an order, which slow verification stretches.
- I-9 reverification: confirming a Crew Member's work authorization before it expires.
- Credentials verification organization (CVO): a company that performs verification for others.
- Healthcare credentialing: the full process PSV is part of.