Beach House Behavioral Health, a substance use and mental health treatment provider and portfolio company of BelHealth Investment Partners, announced a new in-network agreement with Ambetter Health. The company says the contract expands access to its continuum of services across substance use and mental health, reducing out-of-network barriers for eligible members. From an investment and value-building perspective, payer contracting is a core growth lever: in-network status can increase addressable patient volume, improve conversion from inquiry to admission, and create more predictable reimbursement dynamics. The announcement positions the agreement as a step toward broader accessibility for individuals and families seeking care, while reinforcing the growing importance of payer relationships in how behavioral health platforms scale and compete.