After watching enough network builds succeed and fail, patterns emerge — here are the three archetypes that consistently land in deficiency review.
Patterns Are More Useful Than Anecdotes
Network adequacy failures are rarely random. After years of working through submissions, deficiency responses, and corrective action plans across dozens of plans and markets, I can tell you that most failures trace back to one of three recognizable archetypes. The plans that struggle are not the ones with uniquely bad luck or uniquely difficult markets — they are the ones that exhibit a specific set of behaviors months before submission. Here are the three types, how to recognize them, and what actually fixes each one.
Type 1: The Late Starter
The Late Starter begins its network build 6 months before submission. Sometimes 5. Leadership views network adequacy as a compliance task to be completed, not a program to be managed — so it stays on the back burner until it becomes urgent. By the time urgency hits, the plan is already behind on the only timeline that matters: credentialing.
Here is the math that kills Late Starters: a provider who signs a contract in month 4 of a 6-month build cycle will not finish credentialing before submission. Primary source verification, CAQH review, and committee approval alone can take 90 to 120 days at many managed care organizations. That provider cannot be counted in your adequacy filing. Which means the Late Starter's network, as credentialed and countable, is almost always smaller than the network on paper — and the gap between those two numbers is what triggers a deficiency.
Warning signs: Your kickoff meeting happens less than 12 months before the submission deadline. Your credentialing team is not in the room for network build planning conversations. You are still negotiating with hospital systems 4 months out.
The fix: The build clock starts 18 months before submission. Full stop. Hospital system negotiations begin at month 18. Specialist outreach begins at month 15. Credentialing queues open at month 12. If you cannot staff to that timeline, you need to contract out capacity — not compress the schedule.
Type 2: The Spreadsheet Operator
The Spreadsheet Operator is managing a multi-county network build in Excel. This is far more common than the industry admits, and it is more dangerous than it looks. The problem is not that spreadsheets are unsophisticated — the problem is that spreadsheets cannot enforce version control, cannot flag stale data, and cannot tell you when a provider's status has changed since the last time someone updated column K.
The Spreadsheet Operator's failure mode is submission of inaccurate data. Not fraudulent — inaccurate. Three people are editing three versions of the master tracker simultaneously. The provider who terminated in October is still showing as active in the file that gets pulled for the December adequacy snapshot. The county that showed adequate in the version saved on Tuesday is deficient in the version saved on Thursday, and no one knows which one is current.
Warning signs: Your network tracker file has a name like "Network_FINAL_v3_UPDATED_USE THIS ONE.xlsx." Your team spends meaningful time each week reconciling versions. When someone asks about the status of a specific provider, the answer involves opening multiple files.
The fix: A single system of record with controlled access and an audit log. Every provider status change needs a timestamp and an owner. Every outreach attempt needs a structured log entry. This does not require expensive enterprise software — but it does require moving off Excel for anything that will feed a CMS submission.
Type 3: The Urban Focuser
The Urban Focuser has an excellent network in the metro counties. Primary care, specialists, hospitals — the urban core is well-covered and the data is clean. The problem is the rural counties at the edge of the service area, which received a fraction of the outreach effort and now have adequacy gaps that the plan is scrambling to address two months before submission.
Rural and frontier counties present specific challenges: fewer providers per specialty means every single eligible provider matters; exception requests require documented outreach that is more burdensome than the urban equivalent; and the providers who are available in rural markets often have longer contracting timelines because they lack dedicated managed care staff. The Urban Focuser deprioritizes these counties because they are harder and because the team's instinct is to secure the high-volume markets first.
Warning signs: Your adequacy review meetings focus on county-level aggregates, not individual county scorecards. Your rural counties have fewer than 3 outreach attempts per specialist on record. You are first hearing about frontier county exceptions in the final 60 days.
The fix: Rural counties need more time and more documentation, not less. Start them earlier, not later. Assign a dedicated owner to rural and frontier counties. Build your exception request documentation as you go — not in a panic at month 5.
Which Type Are You?
Most plans that fail network adequacy do not fail because the market was impossible. They fail because of a process failure that was visible months before submission — they just were not looking for it. The Late Starter, the Spreadsheet Operator, and the Urban Focuser are all fixable patterns. But they require honest self-assessment before the deficiency letter arrives, not after.
If your current network build resembles any of these three archetypes, the right time to change course is not after your next CMS review. It is now.