CMS National Average Drug Acquisition Cost (NADAC)

The Centers for Medicare & Medicaid Services (CMS) National Average Drug Acquisition Cost (NADAC) dataset is a nationwide pricing index that establishes a transparent, objective benchmark for the actual acquisition costs of outpatient medications.

**Scope and Scale:** This massive dataset captures the pricing realities of the entire U.S. retail pharmacy market. It tracks tens of thousands of unique National Drug Codes (NDCs)—covering brand-name, generic, and over-the-counter (OTC) products. To generate these rates, CMS and its contractors conduct comprehensive monthly surveys of approximately 30,000 independent and chain retail community pharmacies across the United States. To capture the volatility of the pharmaceutical market, the data is updated on a weekly basis, providing an ongoing, highly granular historical record of drug ingredient costs.

**The Value Proposition:** Unlike traditional pricing metrics such as Average Wholesale Price (AWP) or Wholesale Acquisition Cost (WAC)—which often represent theoretical, inflated, or pre-discounted list prices—NADAC reflects the true invoice prices that pharmacies actually pay to acquire medications.

This dataset provides immediate, actionable value to healthcare stakeholders by enabling them to:

- **Establish Fair Reimbursements:** State Medicaid programs and private payers utilize NADAC to create data-driven ingredient cost reimbursement models that accurately reflect current market conditions.
- **Audit Contracts & Combat Spread Pricing:** Employers, health plan sponsors, and analysts use this objective benchmark to audit Pharmacy Benefit Manager (PBM) pricing, ensuring transparency and fair, pass-through contracting.
- **Track Market Dynamics:** Researchers and market analysts can monitor historical pricing trends, calculate brand-to-generic cost shifts, and track the financial impact of drug shortages or supply chain disruptions.

Whether you are optimizing pharmacy operations, negotiating payer contracts, or conducting macroeconomic health policy research, NADAC provides the ground-truth financial data required to navigate the complex pharmaceutical supply chain.

原始信息汇总

数据集概述：CMS National Average Drug Acquisition Cost (NADAC)

基本信息

• 数据集名称：CMS National Average Drug Acquisition Cost (NADAC)
• 提供者：Element Data
• 定价：免费，无限制访问
• 更新频率：每周更新
• 交付方式：安全共享（Secure Share）
• 分类：金融、政府、健康与生命科学
• 许可证类型：标准（Standard）

数据描述

该数据集是美国医疗保险和医疗补助服务中心（CMS）发布的全国平均药品采购成本（NADAC）数据集，旨在提供一个透明、客观的基准，反映门诊药品的实际采购成本。

范围与规模：

• 涵盖美国整个零售药房市场的定价现实，追踪成千上万个独特的国家药品编码（NDC），包括品牌药、仿制药和非处方药（OTC）产品。
• CMS及其承包商每月对全美约3万家独立和连锁零售社区药房进行综合调查。
• 数据每周更新，提供持续、细粒度的药品成分成本历史记录。

核心价值：

• NADAC反映药房实际支付的发票价格，而非平均批发价（AWP）或批发采购成本（WAC）等理论上的标价。
• 可用于建立公平报销、审计合同与打击差价定价、追踪市场动态。

应用场景

1. PBM合同审计与计划赞助：雇主和商业健康计划使用NADAC作为客观基准，审计药房福利管理公司（PBM）的差价定价，并谈判公平的通行定价合同。
2. 医疗补助与支付方报销：州医疗补助计划和私人支付方利用NADAC建立数据驱动的成分成本报销模型，准确反映市场状况。
3. 药品定价分析与政策：研究人员、政策制定者和市场分析师监控仿制药和品牌药的价格通胀、波动性和历史定价趋势。
4. 药房运营与供应链：零售和独立药房将自身批发采购成本与全国平均值进行基准比较，优化采购合同并提高利润率。

数据字典

主要涉及的视图或表名为 V_NADAC_2026，该表提供数据预览，包含药品描述、定价单位、NADAC单位成本、对应仿制药单位成本、药品分类、生效日期、NDC代码等字段。

使用示例

1. 比较品牌药与仿制药的单位成本：通过查询 v_nadac_2026 表，筛选品牌药并关联对应的仿制药，计算潜在的单位节省成本，并按节省金额降序排列。
2. 追踪特定药品的成本波动：通过指定NDC代码，查询该药品在不同生效日期下的NADAC单位成本，并按日期降序排列，以观察价格变化趋势。