How to Identify Insurance Gaps at Your Treatment Center

Treatment center insurance gaps—the payers your competitors accept that you don’t—are one of the most direct and actionable drivers of admissions loss. Unlike online visibility or staffing, insurance gaps represent a binary problem: either you can serve a patient or you can’t. This guide walks through how to find those gaps, quantify their impact, and prioritize which ones to close.

What Are Insurance Gaps and Why Do They Matter?

An insurance gap exists when a patient or referral source contacts your facility about treatment, but their insurance isn’t accepted. That patient then gets referred to a competitor. Insurance gaps are largely invisible to operators unless you’re actively tracking them—which most facilities don’t do systematically.

The scale of the problem is significant. In any competitive market, it’s common to find that 3–5 of the nearest competitors accept one or two payers you don’t. If those payers cover even 10% of your catchment area’s population, you’re systematically missing a portion of your addressable market every month.

Step 1: Audit Your Own Payer Contracts

Start with a complete, current list of every payer you’re contracted with, including:

• Federal programs (Medicare, Medicaid fee-for-service)
• Medicaid managed care organizations (MCOs) by plan name, not just “Medicaid”
• Commercial payers (BCBS, Aetna, Cigna, UHC, Humana) by specific plan types (HMO vs PPO vs EPO)
• Employer-sponsored plans (if you have any direct employer contracts)
• Tricare (for facilities serving military populations)

Many billing teams track this by payer ID rather than by consumer-facing plan name, which can make it hard to compare against what competitors list on their websites. Make sure your list is legible to admissions staff, not just billing.

Step 2: Map Your Competitors’ Payer Acceptance

For each facility in your competitive set (5–10 nearest competitors with overlapping levels of care), gather payer acceptance data from:

• SAMHSA’s Treatment Locator (findtreatment.gov): Search each competitor and expand the facility record. SAMHSA captures “payment assistance” and insurance categories, though not always at the plan level.
• Competitor websites: Most facilities list accepted insurance on their admissions or insurance pages. This data is self-reported and may be incomplete, but it captures what the facility is actively marketing.
• Direct verification calls: For your most important competitors, a 5-minute call to their admissions line can confirm specific plan acceptance for any payer you’re uncertain about.

Step 3: Identify the Gaps That Matter Most

Not all insurance gaps are equal. Prioritize based on three factors:

• How many competitors accept it: A plan accepted by 4 out of 5 local competitors represents a clear market norm you’re not meeting. A plan accepted by only 1 competitor is a lower priority.
• Population coverage in your catchment area: Check the payer’s member count or market share in your state/region. Your state’s Medicaid enrollment data and insurance commissioner reports can provide this. Payers with large local membership create more admissions volume.
• Reimbursement rates relative to cost of care: Contact the payer’s provider relations team to get rate information before pursuing a contract. A plan that reimburses below cost is not worth pursuing regardless of competitive pressure.

Step 4: Quantify the Revenue Opportunity

Before pitching a new contract to ownership or a board, build the business case:

• Estimate the number of admissions you’ve turned away in the past 12 months due to this payer (track this in your admissions CRM if you don’t already)
• Multiply by your average revenue per admission at that level of care
• Subtract estimated credentialing and administrative costs (typically $5,000–$15,000 in staff time for a new payer relationship)
• Calculate the break-even point in number of admissions

Get Your Insurance Gap Report in Minutes

Mapping insurance gaps manually takes significant research time. GTH’s free Growth Gap Audit pulls insurance acceptance data from SAMHSA and state directories for your facility and your nearest competitors, delivering a side-by-side payer comparison instantly. It shows exactly which plans your competitors accept that you don’t—prioritized by competitive prevalence.

Frequently Asked Questions

How do I track insurance denials at the admissions point?

Your admissions CRM should have a field for “reason for non-admission” that includes “insurance not accepted.” If it doesn’t, add one. After 90 days, you’ll have data showing exactly which plans are causing you to lose potential patients.

What if a payer doesn’t want to credential us?

Some payers close their networks to new providers. If that’s the case, explore whether you can get patients referred to you through an already-credentialed entity (e.g., a health system partnership) or whether the payer has an out-of-network single case agreement process.

Should we pursue Medicaid if we currently only take commercial insurance?

Medicaid expansion has significantly increased the number of Medicaid-covered adults who could benefit from residential and outpatient treatment. If your competitors accept Medicaid and you don’t, you’re likely missing a material portion of the referral market. The decision depends on your cost structure and the Medicaid reimbursement rates in your state.

For immediate help connecting patients with treatment, refer them to the SAMHSA National Helpline: 1-800-662-4357 (free, confidential, 24/7).