STAR ratings start in the network.

STAR ratings get treated as a care management problem and an enrollment problem. Plans that are stuck at 3.0 or 3.5 hire a new HEDIS vendor, tighten their care gap outreach program, and retrain their care managers. Sometimes that moves the needle. Often it doesn't — because the actual bottleneck is upstream of all of it. The bottleneck is the network.

The providers in your network determine whether your members get the screenings, the follow-up appointments, and the chronic disease management that HEDIS measures reward. A care manager can identify an open care gap. She can call the member, mail the reminder, send the text. But if the PCP doesn't close the loop in the EHR, if the encounter doesn't produce a HEDIS-eligible claim, the gap stays open. The star doesn't move.

We have worked with plans that invested heavily in member-facing quality programs while contracting with PCPs who had no idea what a HEDIS measure was. The member outreach was well-run. The network wasn't built for it. The result was predictable.

The connection most plans miss

HEDIS-driven measures — colorectal cancer screening, breast cancer screening, diabetes care, medication adherence, follow-up after hospitalization — depend on providers who do three things: participate in quality programs, document encounters correctly, and close care gaps when they're flagged. A network built purely for adequacy does none of those things reliably.

Adequacy contracting is a numbers exercise. Get enough providers of each type to pass time-and-distance standards. Sign the paper. Move on. The providers who come in through that process are often busy, independent physicians who are paneled with ten plans and managing a full schedule. They are not looking for a new quality reporting relationship. They are looking for clean claims processing and reasonable rates.

That's not a criticism of those physicians. It's a description of the market. The problem is expecting a network built on those terms to produce Stars performance. It won't — not reliably, and not at scale.

What your network needs to support Stars

The Stars-supporting network looks different from the adequacy network in specific, measurable ways. Here is what matters:

• PCPs who close care gaps and submit HEDIS-eligible claims correctly. This requires physicians who understand HEDIS coding requirements, who have staff that can respond to gap closure requests, and who are willing to engage with the plan's quality program. Patient-centered medical home (PCMH) designation is a reasonable proxy — not a guarantee, but a signal.
• Specialists who document to diagnosis, not just encounter. A specialist visit that produces a clean SOAP note but doesn't capture the diagnosis codes your quality program needs is a missed opportunity at best, a gap in your risk adjustment at worst. Specialists in quality-focused practices document differently.
• Behavioral health providers in-network with real access. Access-to-care measures are a real Stars category. If your behavioral health network is thin — providers listed in your directory who aren't accepting new patients, or who have 90-day wait times — those measures will cost you.
• Pharmacies with preferred network status for medication adherence. Medication adherence measures are among the highest-weighted Stars categories. Preferred pharmacy network design is a direct lever. Plans that don't actively manage their pharmacy tier leave Stars on the table.
• A provider education and engagement program, not just outreach. There's a difference between provider outreach (sending care gap lists and hoping for a response) and provider engagement (regular touchpoints, performance feedback, shared accountability). The second one moves Stars. The first one generates activity reports.

The Stars-network feedback loop

There is a feedback dynamic at work here that plans need to understand. Plans with 4-star or better ratings receive quality bonuses from CMS. Those bonuses mean more competitive rates, more plan design flexibility, and more attractive offerings to members. More competitive offerings mean better enrollment. Better enrollment gives the plan more contracting leverage.

Plans stuck at 3.0–3.5 don't have that leverage. They can't offer rates that attract quality-focused provider groups. The quality-focused providers go to competitors with better economics. The plan's network stays thin on quality. Stars don't improve. The cycle continues.

Breaking that cycle requires intervening at the network level before you're stuck in it. The time to build for Stars is at the build phase — not after you've signed two years of adequacy-only contracts with providers who have no interest in quality reporting.

What to do at the build phase

The good news is that building for Stars and building for adequacy are not separate exercises. They overlap significantly. The providers who can close care gaps are often the same providers who are available in adequate numbers in a given county. The work is identifying them and prioritizing them — not finding an entirely different provider population.

Practically, this means:

• Identify quality program participants during outreach. Before you start contracting in a county, pull the list of PCMH-designated practices, ACO participants, and Bridges to Excellence-recognized physicians. These are the providers who have already opted into quality infrastructure. Prioritize them in your outreach sequencing.
• Build preferred tier language into initial contracts for quality-participating providers. If you want these providers to engage with your quality program, give them a reason to in the contract. A preferred tier with modestly better rates for PCMH or ACO participants costs less than a Stars recovery program two years from now.
• Flag PCPs with high care gaps rates during the credentialing inventory. Credentialing is a quality filter, not just a compliance exercise. If you have visibility into a PCP's historical HEDIS performance or care gap closure rates before you contract, use it.
• Include provider directory accuracy in your quality monitoring from day one. Wrong directory data means care gap outreach misses members. A member assigned to a PCP who has left the network, moved, or stopped accepting new patients cannot receive Stars-eligible care from that PCP. Directory accuracy is a quality infrastructure issue, not just a regulatory one.

A network that passes adequacy but can't close a care gap is a network that will cost you half a star.

Build for adequacy and build for Stars simultaneously. They're not the same list, but they overlap more than most plans think. The PCPs who are PCMH-designated, who participate in ACOs, who have invested in quality infrastructure — those providers are also often the most reliable network partners overall. They have staff. They answer calls. They respond to outreach. They're worth more per contract than a physician who passes the adequacy threshold and nothing more. Start the conversation there, and the Stars infrastructure follows.