ACA provider directories published by carriers have documented error rates between 20 and 52 percent, according to OIG and GAO audits conducted over the past five years. CMS requires monthly updates under . The monthly update requirement does not mean the directory is accurate. It means the carrier is required to try to keep it accurate. Those are different things.
Key Takeaways
- CMS-published ACA provider directories have documented error rates between 20 and 52 percent, according to OIG and GAO audits.
- HMO and EPO plans have no out-of-network benefit. A directory error means a zero-coverage visit, not just a higher copay.
- Call the provider's office directly to verify network participation for the specific plan and plan year before recommending.
- Document every verification call: provider name, date called, staff name, answer given. One sentence in a CRM note is enough.
- CMS requires monthly directory updates under 45 CFR 156.230(b)(2). That does not mean what is published today is accurate today.
Why the error rate matters more for some plan types
For a PPO client, a directory error means paying out-of-network cost-sharing: a higher deductible tier, a higher coinsurance rate. Painful, but not catastrophic. For an HMO or EPO client, a directory error means no coverage at all. HMO and EPO plans have no out-of-network benefit outside of emergencies.
A client who picks an HMO based on a provider directory listing, sees that provider in February, and gets a bill for the full amount is not going to remember that the directory had a disclaimer. They are going to call you.
The five-step verification workflow
This is not a compliance protocol. It is a practical workflow that takes under ten minutes per client and eliminates the most common source of post-enrollment complaints.
| Step | Action | What to ask or confirm |
|---|---|---|
| 1 | Get the provider's NPI and office phone number | Ask the client, or look up on NPPES |
| 2 | Check the carrier directory with the plan ID (not just plan name) | Confirm in-network status for the specific plan year |
| 3 | Call the provider's billing or scheduling office | "Do you accept [carrier name] [plan name] for [plan year]?" |
| 4 | Ask if the provider is accepting new patients on that plan | In-network but not accepting new patients creates the same gap |
| 5 | Log the call in your CRM | Date, staff name, answer given. One sentence is enough. |
Illustrative workflow. Individual carrier directory systems and provider office processes vary. Verify with the specific carrier and provider before finalizing a recommendation.
Why the phone call beats the directory
The directory reflects what the carrier's contracting system recorded at the last update cycle. The provider's billing office knows what insurance they are billing today. Those two things are often out of sync because provider contracts are renegotiated on rolling schedules and the carrier's directory update lag is measured in weeks.
A provider who left a carrier network in April may still appear in the directory in September. A provider who joined in August may not appear until October. The phone call closes the gap.
Quoting platforms, including Quotit and Connecture, display the plan's carrier directory data. Neither automates cross-carrier provider verification. The phone call is a broker action, not a tool action.
Documentation protects the broker
If a client's primary care provider turns out to be out of network after enrollment, the conversation becomes cleaner with a documented verification record. "I called Dr. [Name]'s office on [date], spoke with [staff], confirmed in-network for [plan ID]" is a defensible record. It shifts the liability toward the carrier's directory error and away from the broker's recommendation.
One sentence in a CRM note. Date, person, answer. That is the whole documentation requirement. It takes fifteen seconds to write and has protected more than a few brokers from escalated client complaints.
When verification is especially important
Three situations warrant the call even for PPO plans: clients with ongoing specialist relationships for chronic conditions (oncology, cardiology, endocrinology), clients who have a scheduled surgery within the first 90 days of coverage, and clients in rural areas where network options are already constrained. In all three cases, the cost of a network error is disproportionate to the five minutes the verification call takes.
Formulary verification follows the same logic. A client on three maintenance medications has the same risk profile on the drug side as a client with a specialist relationship has on the provider side.
Provider network verification: common questions
These are the questions brokers most commonly ask after a client calls about a provider that turned out to be out of network.
How often are ACA provider directories wrong?
Federal audits have found error rates between 20 and 52 percent, depending on the study and the carrier. OIG and GAO audits from the past five years consistently show that a significant share of listed providers are no longer accepting the plan, have left the network, or have incorrect contact information. The directory is a starting point, not a guarantee.
Does the No Surprises Act protect ACA clients from out-of-network costs from directory errors?
Partially. The No Surprises Act caps cost-sharing at in-network rates for emergency services and non-emergency services at in-network facilities provided by out-of-network clinicians. It does not protect clients who choose an out-of-network provider based on a directory error and receive non-emergency care at an out-of-network facility. For HMO and EPO plans, that scenario means no coverage at all.
What should I do if the carrier's directory shows a provider as in-network but the provider says they are not?
Document the discrepancy: date you checked the directory, date of the provider call, name of the person who answered, and what they said. Report the discrepancy to the carrier. If a client is already enrolled and the provider rejects the plan, escalate to the carrier's provider relations department. CMS allows clients to request an expedited grievance in these situations.
How do I verify network participation for a plan that has not gone into effect yet?
Ask the provider's office to check for the specific plan ID and the upcoming plan year, not just the carrier name. A provider may be in-network for one Quotit-administered plan and not another from the same carrier. The plan ID is what the contracting system uses, not the marketing name.
Is provider verification required for PPO plans?
Not required, but still advisable for any specialist a client has a significant relationship with. PPO plans have out-of-network benefits, but out-of-network cost-sharing is substantially higher. A client who sees a specialist 8 to 10 times a year in a PPO plan will pay significantly more if that specialist is out of network. The verification call takes five minutes.
