ACA Marketplace network adequacy: the QHP standards, explained

What QHP network adequacy is testing

QHP network adequacy standards are anchored in 45 CFR 156.230 and the Marketplace certification framework. At its core, the standard asks whether a QHP's network provides reasonable and timely access to a sufficient number and geographic distribution of in-network providers. Over recent plan years the federal Marketplace has translated that general principle into concrete, quantitative tests — time-and-distance standards and appointment-wait-time standards — rather than leaving it to a qualitative judgment.

The framework has three load-bearing pillars: quantitative time-and-distance standards that measure geographic access, appointment-wait-time standards that measure timely access, and the Essential Community Provider requirement that measures access for low-income and underserved populations. A plan has to clear all three. The ECP pillar in particular is where Marketplace veterans spend most of their preparation time, because it is the least like anything else in health-plan network building.

Time-and-distance standards

Time-and-distance standards test whether enough enrollees have an in-network provider of each specialty type within a maximum travel time and distance. The Federally-facilitated Marketplace establishes these standards to be consistent with industry norms and publishes them in guidance, with tighter limits in urban counties and more permissive ones in rural counties — a primary care provider within roughly 10 miles or 15 minutes in a dense urban county, versus a far longer reach allowed in a sparsely populated rural one.

If this sounds broadly similar to the Medicare Advantage approach, it is — both use county-type-sensitive time-and-distance geometry. But the specialty lists, the county classifications, the exact thresholds, and the population being measured are different, because the Marketplace population and the Medicare population are different. You cannot port your MA time-and-distance results into a QHP application. You re-run the analysis against the Marketplace standards for the Marketplace population in every county you intend to serve.

Appointment wait time standards

The newer and more operationally demanding pillar is the appointment-wait-time standard. For plan years beginning on or after January 1, 2025, QHP issuers in the Federally-facilitated Marketplace must meet appointment-wait-time standards — enrollees must be able to schedule an appointment within defined timeframes at least 90 percent of the time. The published standards have included 10 business days for behavioral health and 15 business days for routine primary care, among other categories.

This is a fundamentally different kind of test, and it catches plans off guard. Time-and-distance is a geometry problem you can model from your provider roster before you contract anyone new. Wait time is a live behavioral property of your network — it depends on how busy your contracted providers actually are and whether they can see a new patient inside the window. The Marketplace verifies it through secret-shopper-style surveys, meaning the standard is measured against reality, not against your tables. A network can be perfectly adequate on paper for distance and still fail on wait time because the providers you contracted have no open capacity.

Essential Community Providers — the requirement with no MA analog

Essential Community Providers, or ECPs, are providers that serve predominantly low-income and medically underserved populations — federally qualified health centers, Ryan White providers, family planning clinics, disproportionate-share hospitals, and similar safety-net entities. The QHP ECP standard requires issuers to include in their network a sufficient number and geographic distribution of ECPs to ensure reasonable and timely access for low-income enrollees and people living in Health Professional Shortage Areas. This is where the Marketplace departs most sharply from Medicare Advantage, which has no comparable safety-net contracting mandate.

The federal standard has operated on a 35 percent contracting threshold. To satisfy the general ECP standard, an applicant must contract with at least 35 percent of available ECPs in each plan's service area — and separately meet a 35 percent threshold for family planning providers and for federally qualified health centers. "Available" is defined by the CMS ECP list, and the arithmetic is unforgiving: you have to build affirmative relationships with a large slice of the safety net in every service area, which takes time and often runs against the grain of a plan's usual contracting priorities. This single requirement is the most common reason a Marketplace entrant's timeline slips.

The shift to federal review on HealthCare.gov

Where your network gets reviewed has consolidated toward the federal government. For plans offered on HealthCare.gov, CMS conducts the network adequacy review itself, except in the specific states that have elected — and been approved by CMS — to perform their own reviews. The days of assuming a state department of insurance would be the sole arbiter of your Marketplace network are largely over on the federal platform.

The federalization is still spreading. For plan years beginning on or after January 1, 2026, State-based Marketplaces and State-based Marketplaces on the Federal Platform are required to implement quantitative time-and-distance standards for QHPs that are at least as rigorous as the federal ones. The practical effect is convergence: whichever Marketplace you enter, you should expect quantitative, federally-benchmarked standards and a review that is at least as demanding as the FFM's. Plan for the federal bar even in a state-based market, because the floor is rising toward it everywhere.

How QHP adequacy differs from Medicare Advantage

If Medicare Advantage is your reference point, hold onto the shared architecture — county-sensitive time-and-distance geometry and a coverage-based pass/fail logic — but internalize the differences, because they are where entrants get hurt.

• Different population and specialty framing: QHP standards measure the commercial Marketplace population against Marketplace specialty lists, not the Medicare beneficiary census.
• The ECP mandate: the 35 percent ECP contracting requirement is a Marketplace-specific safety-net obligation with no Medicare Advantage equivalent.
• Appointment-wait-time enforcement: QHPs face secret-shopper-verified wait-time standards measuring real-world timely access, distinct from MA's structure.
• Different telehealth treatment: the Medicare Advantage 10-point telehealth adequacy credit is an MA construct and does not transfer to QHP determinations.
• Reviewer and platform: CMS reviews most HealthCare.gov networks directly, with state reviews only where CMS has approved the state to conduct them.
• Regulatory basis: QHP adequacy lives under 45 CFR 156.230 and the annual Notice of Benefit and Payment Parameters, not 42 CFR Part 422.

What a Marketplace entrant has to prepare

The plans that certify cleanly treat Marketplace entry as its own build, not a re-skin of an existing network. That means starting early — especially on ECP contracting, which is the long pole — and running the actual Marketplace analysis rather than assuming your other lines will carry over. The sequence below is where we start with plans entering the Marketplace.

• Model time-and-distance against the current Marketplace standards for the Marketplace population in every service-area county, not your MA or Medicaid results.
• Start ECP contracting first: identify available ECPs from the CMS list and pursue the 35 percent thresholds, including the separate FQHC and family planning thresholds.
• Build for appointment-wait-time performance, not just geography: confirm real new-patient capacity in behavioral health and primary care, because secret shoppers will test it.
• Confirm whether your states run their own reviews or defer to CMS, and prepare to meet the federal bar either way given the 2026 convergence.
• Align your provider directory with your certified network from day one, so the No Surprises Act accuracy obligations do not undercut the network you just certified.
• Track the annual Notice of Benefit and Payment Parameters, which is where these standards and thresholds are updated each plan year.

The takeaway

ACA Marketplace network adequacy is a distinct discipline: quantitative time-and-distance and appointment-wait-time standards, a demanding 35 percent Essential Community Provider requirement, and a federal review that has consolidated onto CMS for most HealthCare.gov plans and is converging across state Marketplaces. It shares vocabulary with Medicare Advantage, but the ECP mandate, the wait-time enforcement, and the population being measured make it its own build.

The plans that succeed treat the Marketplace network as a purpose-built network, sequenced around the requirements that take longest — above all ECP contracting. We help plans enter the Marketplace with a network that certifies the first time and holds up under review, so your growth line does not stall at the certification gate. Start early, run the real analysis, and build the safety-net relationships before you need them.