MS HB934

Prohibits "all-products clauses" that require healthcare providers to participate in all of an insurer's networks or health plans as a condition of participating in any single network or plan

Bans "most favored nation clauses" that prevent providers from offering lower rates to other insurers or require disclosure of reimbursement rates with competitors

Requires contracting entities to provide 90 days written notice before implementing material amendments to healthcare contracts, including changes to fees, payment methodology, or coding guidelines

Mandates that healthcare contracts must open for renegotiation at least once every three years without requiring termination of the existing contract

Requires healthcare insurers to contract with any willing provider unless the provider has a history of malpractice claims, criminal record, or licensing disciplinary actions; contracts violating these provisions are void