Open Health Data Hub



Making Public Health Data Accessible

Ask questions in plain English about Medicaid claims, Medicare physician spending, and population health surveys. AI translates your words into SQL and returns real answers from federal datasets.

227M
Spending Records
Medicaid 2018–2024
107M
Physician Records
Medicare 2013–2023
72M
Hospital Discharges
Medicare Inpatient 2013–2023
4.0M
Survey Respondents
BRFSS 2014–2024
12K
Clinical Exams
NHANES 2021–2023
276M
Prescriptions
Part D 2013–2023
1.5M
Clinicians
CMS Directory 2026
01
Ask a Question

Type a question in plain English — no need to pick a dataset. AI automatically identifies which of the seven datasets to query, including cross-dataset questions that span multiple sources.

02
AI Generates SQL

Claude identifies the right dataset, builds an analysis plan, and generates precise DuckDB SQL — including cross-dataset JOINs when your question spans multiple sources.

03
See Results

View tables, charts, and AI-generated insights from your query. Cross-dataset results are synthesized into a single narrative. Export to CSV or refine with follow-ups.

Medicaid

Medicaid Provider Spending

Analyze provider spending patterns across Medicaid fee-for-service claims. Explore by procedure code, provider, state, and time period.

227M Claims · Jan 2018 – Sep 2024 Period · 614K Providers

Try asking

  • Which states spend the most on telehealth per capita?
  • Top 10 highest-paid Medicaid providers nationwide
  • How did COVID change procedure spending patterns?
Explore
Medicare

Medicare Outpatient Spend

Analyze Medicare Part B fee-for-service physician spending by provider, specialty, procedure, state, and place of service across 11 years.

~107M Rows · 2013-2023 Period · 1.2M Providers

Try asking

  • Which specialties have the biggest gap between charges and payments?
  • How has opioid prescribing changed since 2015?
  • Compare average cost per beneficiary by state and specialty
Explore
Medicare

Medicare Inpatient Spend

Analyze Medicare Part A inpatient hospital spending by hospital, DRG, state, and year. Compare hospital charges, Medicare payments, and beneficiary costs across 3,000+ IPPS hospitals.

~2M Rows · 2013-2023 Period · 3,000+ Hospitals

Try asking

  • Which hospitals charge the most for hip replacement (DRG 470)?
  • Top 10 most expensive DRGs by total Medicare spending
  • How did COVID-19 change inpatient hospital spending in 2020?
Explore
Medicare

Medicare Prescription Drug Spend

Analyze Medicare Part D prescription drug spending by prescriber, drug, specialty, state, and year. Compare brand vs generic costs, track opioid trends, and identify top-prescribed medications.

~276M Rows · 2013-2023 Period · 1.2M+ Prescribers

Try asking

  • What are the top 10 most prescribed drugs in Medicare?
  • How has opioid prescribing changed since 2013?
  • Which specialties prescribe the most expensive drugs?
Explore
Medicare

Medicare Clinician Directory

Look up any Medicare-enrolled clinician by NPI, specialty, location, or group practice. Analyze workforce distribution, telehealth adoption, and specialty demographics.

~2.8M Records · Feb 2026 Updated · 1.5M Unique NPIs

Try asking

  • How many cardiologists are in each state?
  • What is the gender breakdown across surgical specialties?
  • Which medical schools produce the most active clinicians?
Explore
BRFSS

BRFSS Health Survey

Explore population health trends, risk factors, chronic conditions, SDOH, ACEs, and demographics across all 50 states and DC over 9 survey years.

~4M Respondents · 2014-2020, 2023-2024 Years · 99 Columns

Try asking

  • Which states saw the biggest rise in obesity since 2014?
  • How does childhood adversity (ACEs) correlate with depression?
  • Diabetes rates by income level and race across all states
Explore
NHANES

NHANES Clinical Survey

Explore clinical lab results, blood pressure, BMI, depression scores, and health questionnaires from a nationally representative in-person survey.

~12K Participants · 2021-2023 Cycle · 94 vars Lab Values

Try asking

  • What % of undiagnosed diabetics have normal A1C but elevated glucose?
  • Average blood lead levels by age group and poverty status
  • How does sleep duration relate to BMI, blood pressure, and depression?
Explore