The fastest way to find your CNA certification number is your state Nurse Aide Registry public lookup. Every state runs a free, public-facing search that returns your certification number, status, and expiration when you enter your name and date of birth. The number lives on your wall certificate, your renewal letters, and your employer HR file too — but those go missing. The registry never does.
This guide walks through finding your CNA number the right way. State registry lookups by jurisdiction, what the number actually represents, what to do if your record is missing, registry phone numbers for direct contact, and how the certification number connects to license verification, renewal, and reciprocity. If you also need to verify a number or check status, the CNA license lookup guide covers verification workflow. For full background on credentialing, the CNA certification guide explains the broader process.
To find your CNA certification number: (1) go to your state Nurse Aide Registry website, (2) use the public lookup tool with your name and date of birth, (3) your certification number, status, and expiration will display. No fee, no login. If the registry lookup returns nothing, call the registry phone number directly during business hours — they can pull your record from internal systems. Most states use Credentia (formerly Pearson VUE Nurse Aide) for testing records; Credentia phone is 1-888-204-6249.
Your CNA certification number is the unique identifier assigned by your state Nurse Aide Registry when you passed the competency exam and joined the registry. Each state generates the number in its own format. California uses an 8-digit number prefixed by CNA on the certificate. Texas uses a 10-digit number. Florida uses an alphanumeric format. New York uses a numeric ID linked to the Department of Health records. The format does not matter for verification — employers and renewal systems work with whatever format your state issues.
The number is permanent within your state. Renewal does not change it. Reactivation after a lapse does not change it. Moving and re-credentialing in a new state does not change it (you simply get a second number in the new state through reciprocity). The number stays with your registry record indefinitely, including after retirement or career change. Finding it later — even after years out of CNA work — is usually straightforward through the registry lookup.
The paper certificate mailed after passing competency exam. Lists your name, certification number, issue date, and state. Frame-worthy but easily lost over years. If you still have it, the number is printed prominently.
State registries mail renewal notices 60-90 days before expiration. Each notice lists your certification number and renewal due date. Keep a recent letter — it's the easiest at-home reference.
Your employer recorded your CNA number during hiring for verification purposes. HR can usually retrieve it from your personnel file. Calling former employers' HR for old records works too if your current job isn't an option.
If you tested through Credentia (former Pearson VUE Nurse Aide system), your test account profile shows the certification number assigned after passing. Log into Credentia.com with your email and password.
The authoritative source. Public lookup tool returns your number with name and DOB. If the public lookup fails (rare), the registry phone line can retrieve it from internal systems.
Past background checks for healthcare jobs often list your CNA certification number alongside license verification results. Worth checking saved emails from previous job applications.
The standard registry lookup workflow takes 2-3 minutes once you reach the right page. Step 1: search your state's name plus "Nurse Aide Registry" in any search engine to find the official state government site. Most use .gov domains. Step 2: navigate to the public lookup, license verification, or certification search page. Wording varies by state. Step 3: enter your first name, last name, and date of birth. Some states also accept partial name searches if you don't remember exact registry spelling. Step 4: review results — your certification number, status (Active, Inactive, Expired), and expiration date will display.
If results return multiple matches, look for the entry matching your date of birth exactly. CNAs with common names sometimes have duplicate names in the registry. The DOB filter narrows quickly. If results return nothing, check the spelling against your wall certificate or any old documentation. Some CNAs are registered under maiden names if they didn't update after marriage; try that variation. If nothing works, the registry phone line resolves these edge cases in under five minutes most days.
Use the CDPH Aide and Technician Certification Section public lookup. Search by last name and date of birth. Returns CNA certification number prefixed with CNA followed by 8 digits. CDPH phone is 916-327-2445. For full California-specific workflow, see the California CNA license lookup guide. Background re-checks may be required at renewal in California, separately from the lookup itself.
Use Texas Health and Human Services Nurse Aide Registry public search. Enter first name, last name, and DOB. Returns 10-digit Texas CNA number. State search is at hhs.texas.gov. The Texas CNA registry guide covers the full workflow including renewal and reciprocity. Texas does not routinely require background re-checks at renewal.
Florida Department of Health uses a license verification portal at MQA-services.doh.state.fl.us. Search by name and license number if you have it, or by name and DOB if you don't. Florida CNA numbers are alphanumeric. The Florida CNA license guide covers application, renewal, lookup, and reciprocity end-to-end.
NYS Department of Health Nurse Aide Registry lookup is at nyse-cna.org. New York uses Prometric for testing and registry maintenance. Search by name and DOB. New York requires annual in-service documentation rather than the 2-year cycle most states use.
Illinois Department of Public Health (IDPH) Health Care Worker Registry at idph.illinois.gov includes CNA records. Search by name and DOB. Illinois uses a 2-year renewal cycle with 24 hours of continuing education required.
NC Division of Health Service Regulation maintains the NC Nurse Aide I Registry. Lookup is at ncnar.ncdhhs.gov. See the NC CNA registry guide for full North Carolina workflow.
A few reasons the public lookup may not return your record. First, name spelling mismatch — the registry stores the legal name used at testing. Marriage, divorce, hyphenation differences, or typos at original registration all cause lookup misses. Try maiden names, spelling variations, and exact match against any old documentation.
Second, the registry record may be in a sister jurisdiction. CNAs who tested in one state but worked in another sometimes assume the work state has the record. The testing state holds it. Third, some states retain expired or surrendered records but hide them from public lookup; the phone line can pull them.
The phone fallback is reliable. Every state registry has a phone line staffed during business hours. They can search internal databases using broader criteria than the public tool exposes — partial name, social security number, prior addresses, employer history. Have basic identifying information ready: full legal name (including any maiden name), date of birth, approximate date of original certification, and the city where you tested if you remember it. Most registries resolve missing-record calls in under 10 minutes.
State registry phone calls go fastest when you arrive prepared. Have your full legal name including middle name and any prior names (maiden, hyphenated, court-ordered changes). Date of birth. Last four digits of your social security number if the registry uses SSN cross-reference. Approximate date of original certification or testing — month and year is enough. The testing site or training program name if you remember it. Any prior addresses on record, especially the address used when you originally tested. Current address and phone number for follow-up.
Common state registry phone lines: California CDPH 916-327-2445, Texas HHS 1-800-458-9858, Florida DOH 850-245-4444, New York DOH 518-408-1297, Illinois IDPH 217-785-5133, Pennsylvania DOH 717-783-8665, Ohio DOH 1-800-282-1206, Georgia DCH 404-657-5728, Michigan LARA 517-241-0199, North Carolina DHSR 919-855-3969. Hours typically Monday through Friday 8 AM to 5 PM local time. Lines can be busy mid-morning; early morning or just after lunch tends to be quietest.
Replacement certificates are available from most state registries for a small fee ($10-$25 typical). Submit the request through the state registry online portal or by mailing a written request with payment. Processing takes 2-4 weeks for most states. Some registries can email a PDF certificate the same week for digital-only requests; physical certificates take longer because they're mailed.
Several states issue downloadable verification documents that work equivalently to a wall certificate for most employer purposes. California's CDPH portal generates official verification PDFs on demand. Texas HHS offers verification letters. New York DOH provides certificate copies through online request. These verification documents include the certification number, name, status, and expiration date — everything an employer needs for verification. Frameable wall certificates with seals and signatures usually require the formal replacement process with the small fee and mailing wait.
Front of certificate, usually below your name. Format varies: 'Certification No.' or 'License Number' or 'Registry ID'. Sometimes printed in small text near the seal.
Top header section of the renewal notice. Listed alongside your name and renewal due date. Usually labeled 'Certification Number' or 'Registry Number' or 'CNA Number'.
Some employer HR systems print your CNA number on pay stubs in the employee identifier section. Check current and recent pay stubs from healthcare positions.
License verification sections of background check PDFs list the certification number alongside status and expiration. Search saved emails or downloaded copies.
CE provider transcripts and completion certificates often record your CNA number for verification purposes. Check your CE account on any platform you've used.
Some states require professional license numbers on state income tax returns or specific deduction forms. Worth a quick check of recent tax records.
Employers verify CNA credentials through the state Nurse Aide Registry before final hire. The certification number speeds verification — they can look up status, expiration, and any registry findings directly. Without your number, the employer can still verify by name and DOB, but the process takes longer because they may need to disambiguate common names. Providing your number with your job application makes verification cleaner and faster.
Federal regulations require Medicare and Medicaid certified facilities to verify CNA registry status before hire and periodically thereafter. CMS imposes the verification requirement; state registries operate the verification infrastructure. Some facilities check status monthly to catch any registry changes (newly Inactive status, new findings, expiration). Your certification number stays the same regardless of these checks, so providing it once at hire is enough — the employer uses the number for repeated verification queries throughout your employment.
Once you have your CNA certification number, it unlocks every other registry function. Renewal: enter the number on the state portal to pull up your record, then submit renewal documentation. Reciprocity: provide the number from your origin state when applying for CNA reciprocity in a new state — the new state's registry will verify with your origin state to issue a new certification number in the new jurisdiction. Verification: employers, schools, and licensing bodies all use the number for fast lookup.
The number also matters for legal name changes. When you update your name in the registry (marriage, divorce, court order), your certification number stays the same but the registry record gets updated. Future lookups under the new name will return your number with the updated name. Some CNAs keep documentation of name changes in their personal records permanently — useful for unwinding any verification confusion years later. Address updates work the same way: the certification number persists while the address-of-record changes within the registry record.
Out-of-state lookups: if you tested in one state and need to find that number now, contact that state's Nurse Aide Registry directly even if you've moved. The original registry retains your record. Working in a new state through reciprocity creates a separate registry record there, with its own certification number, but the origin state's record persists. Some CNAs hold active records in multiple states simultaneously through reciprocity arrangements.
Military CNAs and military spouses sometimes lose track of original certification numbers during moves. The federal Servicemembers Civil Relief Act protects occupational credentials during military service — deployment doesn't trigger lapse penalties. Old records can usually be retrieved by contacting the original state registry with full military documentation. Spouse credentials moved through state-to-state reciprocity retain numbers in each origin state. Old records from before computerization (pre-1990s) may require additional registry staff search but are usually retrievable.
The most frequent mistake is searching the wrong state. CNAs who moved across state lines sometimes assume the current state holds their record; the testing state is where the original number lives. If you tested in Ohio and now work in Florida through reciprocity, you have two records — Ohio's original and Florida's reciprocity-issued record. Each state's registry tracks its own number. When looking up an old record, return to the registry where you originally tested.
Another mistake is searching by current legal name when the registry record uses a former name. Marriage, divorce, and court-ordered changes update gradually. If you never formally updated the registry after a name change, the registry still lists you under the prior name. Try every legal name you've used; the certification number itself stays the same regardless of name changes on the record. Once you find the record, update the name through the registry portal to prevent confusion at the next employer hire.
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Record the number in multiple secure locations to avoid going through this search again. A password manager note works well — the certification number isn't strictly secret but should be kept private similar to other professional identifiers. A note in your phone's secure notes app. A printed copy in a home file folder along with the wall certificate. A copy in your email saved drafts. The goal is redundancy without exposing the number to general access.
Verify the data on your registry record while you have it open. Confirm the name spelling matches your current legal name. Check the address-of-record matches where you currently live. Note the expiration date and set calendar reminders for renewal. Note your current status: Active means you're eligible to work; Inactive or Expired means you need to address renewal before resuming CNA work. If anything is incorrect, update through the registry portal immediately.
Your CNA certification number is your professional identifier throughout your healthcare career. Even if you advance to LPN or RN later, the CNA number remains in your credentialing history. Many CNAs use it as the starting point for moving into broader nursing careers. Healthcare employers, schools applying for prerequisite credit, and continuing education providers all reference the CNA number when relevant. For broader career planning, the certified nursing assistant jobs guide covers job-finding workflow.
For CNAs interested in continuing into LPN or RN programs, the CNA certification number documents your prerequisite healthcare experience. Some nursing programs grant credit for paid CNA work hours, reducing the time needed to complete the LPN or RN curriculum. The number on its own isn't enough — paystubs and employer letters document the actual hours — but the number establishes your credentialed status.
Three pathways exist for retrieving your CNA certification number, and each fits different situations. Online lookup through the state registry website is the default for anyone with internet access. Free, instant, no waiting. Most CNAs who simply forgot their number find it this way in under five minutes. Phone retrieval is the right choice when online lookup fails — name mismatches, very old records, or multi-state credentialing all push toward phone. In-person retrieval at a state office is rare but available in some states like California's CDPH office in Sacramento.
Your CNA certification number is not strictly confidential like a social security number, but treat it with reasonable care. Anyone who knows your name and date of birth can look up your number through the public registry; that's intentional under federal verification requirements. But the number itself can be combined with other identifying data to support identity theft or fraudulent employment applications. Don't post it publicly, don't include it in plain-text emails to untrusted recipients, and don't share it in social media posts. Treat it similarly to your professional license number for any profession.
If you suspect your number has been misused — someone applied for a CNA job under your credentials, your registry record shows incorrect address or employer changes, or unfamiliar continuing education entries appear on your record — contact the state Nurse Aide Registry immediately. Registry staff can flag the record, investigate, and correct unauthorized changes. Most state registries handle these cases quietly without public records. Documenting your concern in writing creates a paper trail useful if the situation escalates.