Houston's Medicare Risk Report: 4 BCBS Plans Rated 2.5 Stars in Harris County

Something Is Wrong With BCBS in Houston

Let me be direct: Blue Cross Blue Shield of Texas has a quality problem in Harris County, and nearly 600,000 Medicare beneficiaries are living with the consequences.

When I pulled the 2026 CMS star ratings data for Harris County — the most populous county in Texas and the third-largest in the United States — one carrier stood out immediately. Not for excellence. For the opposite.

BCBS of Texas, operated by Health Care Service Corporation (the largest customer-owned health insurer in the U.S.), has four Medicare Advantage plans rated just 2.5 out of 5 stars. That is more bottom-rated plans than any other carrier serving the county. And another four sit at 3.0 — below average, ineligible for CMS quality bonuses, and structurally vulnerable.

Eight plans. One carrier. All underperforming.

This is not a data quirk. This is a pattern.

The 2.5-Star Danger Zone: What the Ratings Actually Mean

CMS star ratings are not vanity scores. They are the mechanism through which Medicare determines how much money flows to an insurer. Plans rated 4.0 stars or higher receive quality bonus payments — extra per-member-per-month funding that allows them to offer richer benefits, lower premiums, and more supplemental coverage.

Plans below 3.0 stars get none of that. They operate at a funding disadvantage. And when an insurer cannot make the economics work without bonus payments, the playbook is well-established: cut benefits, raise premiums, or exit the market entirely.

So when I see four BCBS plans at 2.5 stars in Harris County, I don't see a minor quality issue. I see the same conditions that preceded exits in hundreds of other counties.

The Riskiest Plans in Harris County

Here are the plans that should concern every Medicare beneficiary in the Houston metro area. I have organized them by star rating, from most at-risk to least.

2.5-Star Plans — Danger Zone

All four are operated by BCBS of Texas under Health Care Service Corporation. Three carry zero premiums — which sounds appealing until you understand that "free" plans at 2.5 stars are often the first to be discontinued. The insurer has no premium revenue to offset the lost bonus payments.

3.0-Star Plans — Below Average

Notice the last two: Choice Premier at 96/mo and Preferred at 110/mo. These are the most expensive BCBS options in the county — and they are rated below average. You are paying a premium for mediocrity.

Source: Medicare.gov Plan Finder — 2026 Plan Data

Now Look at What 5 Stars Looks Like

The contrast is damning. In the same county, at the same time, serving the same population:

Devoted Health — a relatively new entrant — achieved perfect 5.0 star ratings in Harris County. So did Erickson Advantage. AARP's UHC plan hit 4.5 stars with a zero-dollar premium. These plans receive full CMS quality bonus payments. They can afford to offer better benefits, broader networks, and richer supplemental coverage.

The gap between a 2.5-star BCBS plan and a 5.0-star Devoted plan is not a rounding error. It represents a fundamentally different level of care, member satisfaction, and health outcomes.

Why BCBS of Texas Is Underperforming

Star ratings are calculated from dozens of quality measures across five categories: staying healthy (screenings, vaccines), managing chronic conditions (diabetes management, blood pressure control), member experience (CAHPS surveys), member complaints, and customer service (appeals, call center hold times).

When a carrier has four plans at 2.5 stars, the problem is not one bad plan. It is systemic. The issues that drag star ratings down — slow prior authorizations, poor care coordination, member complaints, inadequate chronic disease management — tend to be organizational, not plan-specific.

And Harris County makes those challenges harder, not easier.

Harris County Health Snapshot: A Challenging Population

Harris County is not an easy place to manage a Medicare population. The chronic disease burden is significant, the uninsured rate is among the highest in the nation, and the sheer scale — nearly 5 million people — demands operational excellence that low-star plans are not demonstrating.

Source: CDC PLACES — Local Data for Better Health, 2023 Release

The numbers tell a clear story. Harris County has higher rates of diabetes, obesity, and hypertension than national averages — conditions that disproportionately affect Medicare-age adults and drive utilization costs. The 21.3% uninsured rate (more than double the national average) means many people entering Medicare at 65 arrive with years of deferred care and unmanaged conditions.

This is exactly the population that needs excellent managed care. Instead, the county's largest Blue Cross presence is delivering plans that CMS rates as below average or worse.

How Star Ratings Become Plan Exits

Here is the mechanism that should worry anyone enrolled in a 2.5-star plan:

1. CMS calculates star ratings each October based on the prior year's performance data.
2. Plans rated 4.0+ receive quality bonus payments — typically 5% additional per-member-per-month funding. For a plan with 50,000 members, this can mean tens of millions of dollars annually.
3. Plans below 3.0 receive no bonuses and face higher CMS scrutiny, including potential sanctions.
4. Without bonus revenue, the insurer must either subsidize the plan from other business lines, cut benefits, raise premiums, or withdraw from the service area.
5. Withdrawal notices are filed with CMS months before members are notified. By the time you get the letter, the decision was made a year ago.

This is not speculation. This is the exact sequence that played out in the 225 counties UnitedHealthcare exited and the 198 counties Humana abandoned in 2026.

Source: KFF — Medicare Advantage Enrollment, Premiums, and Benefits

The Risk Score: Where BCBS Harris County Plans Stand

SeniorWire assigns a risk score to every Medicare Advantage plan based on three factors: CMS star rating, county health burden, and the carrier's national exit pattern. Here is how the BCBS Harris County plans score:

What You Should Do Right Now

If you are enrolled in any of the four 2.5-star BCBS plans in Harris County, here is the action plan:

1. Check your plan's star rating on Medicare.gov. Search your plan by name or contract ID. Verify the rating matches what we have reported here. Medicare.gov Plan Finder
2. Do not wait for a cancellation notice. By the time your insurer notifies you of an exit, the best alternative plans may have limited network availability. Start comparing now.
3. Look at the 4.5 and 5.0-star plans in your county. Devoted Health, Erickson Advantage, and AARP Medicare Advantage (UHC) all carry high ratings in Harris County. Compare their networks, formularies, and out-of-pocket maximums against your current plan.
4. If your plan exits, you get a Special Enrollment Period. You will have time to switch. But "time" does not mean "unlimited time." Use it immediately.
5. Talk to a licensed Medicare broker — not the carrier's sales line. An independent broker can show you all available plans, not just the ones BCBS wants you to see.

The Bigger Picture: Is This a Texas Problem?

Harris County's BCBS concentration of low-rated plans is notable, but it is not unique. Across Texas, BCBS of Texas operates under multiple contract IDs (H9706, H8133, H1666, H8634, H7849), and several of these contracts carry below-average ratings statewide.

Health Care Service Corporation — the parent of BCBS of Texas — also operates Blue Cross plans in Illinois, Montana, New Mexico, and Oklahoma. The quality issues in Harris County may reflect broader organizational challenges rather than market-specific ones.

That is a question worth investigating further. We will be pulling star ratings data across all HCSC markets in the coming weeks.