Open enrollment for 2027 Affordable Care Act coverage began November 1, and it arrives with more moving parts than any season in recent memory. At least a dozen insurers are leaving marketplaces after 2026, proposed premiums are rising by a median of roughly 15% for the second straight year, and enrollment has already fallen sharply. For Ryan White clinics and 340B covered entities running a Premium Insurance Assistance Program (PIAP), this is the window that determines whether clients start January with the right plan, or with one they were quietly matched into.
What Changed Heading Into 2027
The headlines from October point in one direction: fewer carriers, higher prices and more churn. Reporting compiled through late October shows:
- Carrier exits: Centene will stop selling marketplace policies in Delaware and New Hampshire, and Medica confirmed it is leaving the Kansas City metro marketplace. Yahoo Finance counts 12 insurer exits overall.
- Network shifts: Children’s Mercy Hospital will no longer be in network for Kansas City marketplace plans starting January 1, affecting roughly 400 patients.
- Premium growth: Marketplace premiums are up about 35% over two years, according to Yahoo Finance, with 2027 increases again in the double digits.
- Fewer helpers: A federal registration freeze could keep nearly 19,000 brokers out of 2027 enrollment, and the national broker association has sued HHS over it.
Why Automatic Reassignment Deserves a Closer Look
When an insurer exits, enrollees are generally automatically re-enrolled into another plan unless they act. Medical Daily reports that hundreds of thousands of people losing their insurer for 2027 could be auto-matched, and advises checking new assignments before December 15, the deadline for January 1 coverage on HealthCare.gov.
Auto-matching is built for convenience, not clinical fit. A reassigned plan may have a different formulary, different prior authorization rules for antiretrovirals, or a network that no longer includes the client’s HIV provider or pharmacy. For a PIAP, the cost of a poor match shows up twice: in the client’s care, and in your program budget when premium and cost-sharing obligations differ from projections.
A November Checklist for PIAP Teams
The clinics that come through this season smoothly will treat open enrollment as an active review. We recommend:
- Pull your roster now. Flag every client enrolled with an exiting carrier or in a plan whose network changed.
- Check formularies drug by drug. Confirm each client’s current regimen is covered on the new plan, and note any prior authorization or step therapy requirements.
- Verify the provider and pharmacy network, including whether your own clinic and 340B contract pharmacies remain in network.
- Re-run your premium model. Use actual 2027 rates and subsidy levels so your PIAP budget reflects real costs, not last year’s numbers.
- Document each decision. A short written rationale for every plan choice supports Ryan White payer-of-last-resort and cost-effectiveness requirements.
How a PIAP Supports Better Plan Selection
A well-run PIAP does more than pay premiums; it gives clinics a repeatable plan selection process that weighs total cost (premium, deductible and out-of-pocket maximum) against each client’s medications and providers. When carriers exit, that process is what keeps clients from defaulting into coverage that undermines viral suppression and drives up program costs.
It can also support the funding behind the program. Appropriate coverage may support reimbursement for covered services and eligible 340B dispensing. Actual financial results depend on patient eligibility, payer contracts, drug utilization and program requirements.
American Exchange works with Ryan White recipients and 340B covered entities to design, launch and operate PIAPs, including open enrollment plan analysis, carrier-exit triage and premium payment workflows. For January 1 coverage through HealthCare.gov, December 15 is the key plan-selection deadline. State-based marketplaces may have different dates.
Sources
- Medical Daily – Hundreds of Thousands Losing Their ACA Insurer for 2027 Could Be Auto-Matched to Plans
- Medical Daily – Marketplace Shoppers Should Compare Plans When Open Enrollment Starts November 1
- Modern Healthcare – Centene to quit ACA in two states in 2027
- KSHB 41 – Children’s Mercy ACA Marketplace exit affecting around 400 patients
- Yahoo Finance – Obamacare premiums up 35% in two years as 4.6 million cancel plans and 12 insurers exit
- Beinsure – US health insurance brokers sue HHS over ACA marketplace registration freeze
