Eligibility verification services check, before every visit, that a patient's insurance is active, that your practice is in network for that plan, which plan pays first, and what the patient will owe. Benefits verification goes one step further and confirms coverage for the specific service, visit limits and whether prior authorization is needed. Done every time, it prevents a whole class of denials that no amount of appeal work can fully recover.
What an eligibility and benefits check should confirm
| Item | Why it matters |
|---|---|
| Coverage active on the date of service | Plans end and change mid-year; a card from last visit proves nothing. |
| Correct plan and member ID | Employer changes and plan switches create mismatched IDs. |
| Network status for your provider | Out-of-network visits change what the patient owes and what the plan pays. |
| Primary and secondary order | Billing the wrong payer first produces coordination-of-benefits denials. |
| Copay, coinsurance and remaining deductible | Lets you collect the right amount at the visit and set expectations. |
| Benefit for the specific service | Some plans exclude or limit services such as therapy, testing or fertility care. |
| Visit or unit limits used so far | Limits are a frequent surprise in therapy, rehab and ABA. |
| Prior authorization or referral required | The approval must be in place before the visit. |
| Carve-outs | Behavioral health, imaging or fertility may be managed by a separate company with its own rules. |
The denials eligibility checks prevent
These remittance reason codes, as described in the X12 Claim Adjustment Reason Code list, usually trace back to a check that did not happen:
- CARC 27: "Expenses incurred after coverage terminated."
- CARC 22: "This care may be covered by another payer per coordination of benefits."
- CARC 109: "Claim/service not covered by this payer/contractor. You must send the claim/service to the correct payer/contractor."
- CARC 204: "This service/equipment/drug is not covered under the patient's current benefit plan"
- CARC 197: "Precertification/
authorization/ notification/ pre-treatment absent."
Administrative problems are a large share of denials. In KFF's review of 2024 federal data for plans sold on HealthCare.gov, administrative reasons accounted for 25% of in-network denials where a reason was reported.
How eligibility is checked
- Electronic 270/271 transactions through your practice management system or clearinghouse return active coverage and many benefit details in seconds.
- Medicare offers the HIPAA Eligibility Transaction System (HETS), which lets submitters send 270 eligibility requests and receive 271 responses with Medicare beneficiary eligibility data in real time.
- Payer portals fill gaps the electronic response leaves, such as service-specific limits.
- Phone calls are still needed for some benefits, carve-outs and authorization rules; a good service records the reference number of every call.
The electronic response is fast but not always complete. Service-level benefits, limits and authorization rules often need the portal or a call.
Eligibility verification (EV), benefits verification (BV), prior authorizations, and denial management at no cost for your first 30 days.
30-Day Free TrialWhen to verify
- At scheduling for new patients and new courses of treatment, so authorization work can start.
- A few days before each visit for every patient, because coverage changes.
- At check-in if anything changed: new card, new job, new address.
- At the start of each year, when deductibles reset and plans change.
In-house or outsourced verification
Front desks are good at collecting cards but rarely have uninterrupted time to work payer portals between patients. Outsourced verification runs on the schedule, a day or more before visits, and hands the front desk a clear result: covered, what to collect, and anything to resolve before the patient arrives.
How Sterling Global Solution LLC verifies eligibility and benefits
We check every scheduled patient ahead of the visit, confirm coverage, network status, payer order, patient responsibility and service-level benefits, and flag anything that needs a prior authorization so our prior authorization team can start it. Results go back to your front desk before the visit. Because we also scrub and submit the claim, the insurance on the claim matches what we verified. Eligibility verification and benefits verification are part of our 30-Day Free Trial, with prior authorizations and denial management.
Frequently asked questions
What are eligibility verification services?
What is the difference between eligibility verification and benefits verification?
How do practices check Medicare eligibility?
How often should eligibility be verified?
Is eligibility verification included in the 30-Day Free Trial?
Sources
X12, Claim Adjustment Reason Codes: CARC 22, 27, 109, 197 and 204.
Centers for Medicare & Medicaid Services, HIPAA Eligibility Transaction System (HETS): real-time 270/271 Medicare eligibility.
KFF, Claims Denials and Appeals in ACA Marketplace Plans in 2024, March 24, 2026: administrative denial share.
Related reading
- Prior authorization services. The next step when a service needs approval.
- Why are insurance claims denied?. The front-end causes behind most denials.
- Denial management services. Working the denials that still get through.
- Why your clean claim rate is stuck. The front-end errors behind first-pass failures.
Start with eligibility checks on us
Eligibility verification (EV), benefits verification (BV), prior authorizations, and denial management at no cost for your first 30 days.
30-Day Free TrialNo setup fee. No long-term contract.