Medicare Provider Networks. Built from Years of Claims Data.
DocGraph began with a FOIA request. When we got access to Medicare data, we chose to release it publicly, and that decision shaped everything we’ve built since. Whether you’re validating treatment sequencing and site-of-care patterns, mapping referral networks, uncovering wait-time disparities and access gaps, or revealing fraud and waste, the data is here. DocGraph is the foundational dataset for non-commercial and commercial uses.
Get Access to Our Public Use Files
100% Medicare Fee-for-Service claims, available annually. Two licensing paths.
Access DatasetsMedicare Referral Transparency.
Medicare referral network data.
Physician-to-physician referral patterns, drawn from Medicare claims. Map provider networks, find the gaps, and follow referrals as they move.
- Physician-level referral relationships
- Network structure analysis
- Geographic coverage
- Released annually since 2014
Custom research and journalism
years of longitudinal claims data.
Need access to complete claims data? As a CMS VRDC Innovator access holder, CareSet provides it for custom research and journalism projects.
The DocGraph Hop Teaming dataset contains the following data fields:
- FROM_NPI
- The provider first in the referral sequence, identified by National Provider Identifier (NPI).
- TO_NPI
- The provider second in the referral sequence, identified by NPI.
- PATIENT_COUNT
- The total number of patients shared between the two providers over the measured time period, typically one year.
- TRANSACTION_COUNT
- The number of times a patient moved between the two providers in the from-to direction during the period.
- AVERAGE_DAY_WAIT
- The average number of days between a patient's encounter with the first provider and their encounter with the second.
- STD_DAY_WAIT
- The standard deviation of days between encounters, a measure of consistency in the referral pathway.
- NPI
- The National Provider Identifier, assigned to every provider billing for services in the U.S.
Choose your 2025 dataset
DocGraph Annual
Full-year patient-sharing across the entire Medicare FFS population. The complete referral network.
2025 dataset · one-time commercial license
- Every provider pair, NPI level
- Patient and transaction counts
- Wait-time statistics per pathway
- CSV + data dictionary + documentation
Complete Bundle
Annual plus Same Day together. Longitudinal referral networks and acute same-day collaboration in one order.
2025 datasets · one-time commercial license
- Everything in DocGraph Annual
- Everything in DocGraph Same Day
- One delivery, one documentation set
- Priority technical contact
DocGraph Same Day
Providers billing the same patient on the same calendar day — the acute-care collaboration layer.
2025 dataset · one-time commercial license
- Same-day billing relationships
- Surgical team and consult detection
- Same schema as Annual — easy joins
- CSV + data dictionary + documentation
Non-commercial access for research & journalism
DocGraph 2014–2022 is free under a non-commercial license — the same open release ProPublica and the Wall Street Journal built on. Recent years carry a nominal fee that funds continued public releases.
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Access Datasets Today
DocGraph and DocGraph Same Day are available under commercial and non-commercial licenses. DocGraph captures annual patient-sharing patterns between providers. DocGraph Same Day captures patients who saw multiple providers on the same calendar day, revealing acute care referral relationships
| Dataset | DocGraph Annual | DocGraph Same Day | Both Bundled | DocGraph Non-Commercial |
|---|---|---|---|---|
| 2025 | $44,000 | $22,000 | $55,000 | Contact us |
| 2024 | $11,000 | $5,500 | $13,750 | $1,000 |
| 2023 | $500 | $250 | $625 | $500 |
| 2014–2022 (any year) | $500 | $250 | $625 | No cost |
Delivery & Support
- Standard: Email delivery within 15 business days
- Expedited: Secure SFTP for organizations with network or security requirements
- Included: Data dictionary, documentation, technical support
- Payment: Invoice (Net 30), credit card, ACH, or multi-year licensing available
Custom terms for large-scale deployments and multi-year agreements.