US SB2355

Requires hospitals to publicly disclose all standard charges monthly in machine-readable format, including gross charges, discounted cash prices, payer-specific negotiated rates by insurer/plan name, and de-identified minimum/maximum negotiated charges for every item and service

Establishes tiered civil monetary penalties for hospital noncompliance based on bed count, ranging from $300/day for hospitals with 30 or fewer beds to $25-35/bed/day for hospitals with 500+ beds, with additional penalties up to $10 million for persistent willful noncompliance

Extends similar price transparency requirements to clinical diagnostic laboratories, imaging service providers, and ambulatory surgical centers beginning July 1, 2027, with $300/day penalties for noncompliance

Requires health insurers to submit monthly rate and payment information including in-network negotiated rates, historical net drug prices, and allowed amounts by provider in machine-readable files, with penalties up to $300/member/day or $10 million for violations

Strengthens group health plan access to claims data by prohibiting contracts that limit plan sponsors from accessing claims information, pricing methodologies, or audit rights, with $10,000/day penalties for service providers who restrict data access