Which system they run, and who to call about it.
Sell into healthcare and two questions decide the quarter: which practices run the system you integrate with or replace, and who at those organizations can sign. We answer the first with evidence you can inspect, and the second with named people from filings.
Counted honestly, which means smaller than a market-share chart.
These are clinicians whose system is evidenced, not an estimate of who runs what. A practice that publishes nothing is blank, and a practice that publishes through a message router rather than its vendor is blank too — because that router carries traffic for every system in the country and naming it would be a confident wrong answer.
| System | Clinicians we can name | Share of these systems |
|---|---|---|
| Epic | 311,244 | 66.1% |
| athenahealth | 146,053 | 31.0% |
| Oracle Health (Cerner) | 6,721 | 1.4% |
| TherapyNotes | 1,632 | 0.3% |
| Elation Health | 1,257 | 0.3% |
| Practice Fusion | 1,236 | 0.3% |
| NextGen Healthcare | 1,117 | 0.2% |
| SimplePractice | 901 | 0.2% |
| eClinicalWorks | 581 | 0.1% |
The share is of the systems in this table, not of the market and not of every system we can name — a share of the whole is a figure this page would have to invent. Beyond these there is a long tail of specialty and behavioural-health systems; ask for the full list and the counts behind it.
Six kinds of team, one underlying question.
Everybody here is trying to find the right clinician or organization and reach a person who can decide. What changes is the filter.
| Who | What they are looking for | What they buy |
|---|---|---|
| Health IT and digital health | Practices running a system theirs integrates with — or one it replaces. | Target lists by EHR, size and specialty, plus the officer or owner to call. |
| Medical devices and diagnostics | Clinicians in the specialties that use the device, and the facility that buys it. | Specialty-filtered clinician lists tied to the organizations and facilities behind them. |
| Pharma and life sciences | Prescribers by specialty and geography, including the NPs and PAs that prescriber lists miss. | Verified prescriber contacts, affiliation to groups and systems, and change signals. |
| Staffing and recruitment | Who is licensed where, who just arrived, and which organizations are taking people on. | Role and licence filters, new-credential and hiring events, contact details to reach them. |
| Revenue cycle and billing | Clean identifiers, correct affiliations, and practices whose billing arrangements changed. | Bulk identifier validation, affiliation data, and an API their own system calls. |
| Payers and networks | Directory accuracy: who practises where, under whom, and whether they are in good standing. | Periodic reconciliation files, standing flags, and address-change signals. |
Named contacts, from filings rather than guesswork.
Authorized officials
The person an organization names as responsible when it registers. Title and organization on every row, phone where one is filed.
Owners
Named ownership interests in certified facilities, including the corporate owners behind a chain rather than only the site manager.
Officers and directors
Executives of non-profit health systems and of listed healthcare companies, with the title each filing gives them.
Tied to the organization
Each contact is attached to the organization they belong to, so a system filter and a contact list are the same query rather than two lists to reconcile.
What technical buyers ask.
How do you know which EHR a practice runs?
From the secure-messaging address a practice publishes. Those addresses sit on hosts operated by the system's vendor, so the host names the system. It is evidence you can inspect rather than a survey response or an estimate.
Is this a census of EHR market share?
No, and anybody selling you one from this kind of evidence is overstating it. These are the clinicians whose system we can name and show our working for. Practices that publish nothing, or that publish through a message router rather than their vendor, are simply left blank.
Why leave a record blank instead of making a best guess?
Because roughly half of published hosts belong to message routers that carry traffic for any system. Writing the router's name into an EHR field would put a confident wrong answer in front of your sales team, which is worse than an empty cell they can see.
Can I see when a practice changes system?
Yes. When a system is replaced the previous one is kept rather than overwritten, so a switch is visible as a dated change. This is newer and thinner than the base data, and we would rather tell you that than imply a complete migration feed.
What contacts come with it?
Named people at healthcare organizations — authorized officials, owners and officers — with their title, their organization, and a phone number where one is filed. From filings rather than from scraping, and counted on public pages rather than listed.
Can I match this against my own account list?
Yes. Upload your list of identifiers or organizations and the system, contacts and change signals come back against your own rows, in your own order.
Find the practices running your competitor’s system.
Search free, then sign in to reveal contacts, export the list, or pull it through the API.