New practices.
The week they open.

The source is the CMS NPPES (National Plan and Provider Enumeration System) weekly data dissemination file, published by the U.S. Centers for Medicare & Medicaid Services. Practice Sourcing is an independent product and is not endorsed by or affiliated with CMS.

Every row carries its NPI and a direct link to that practice's record in the federal registry, so you can check any row against the government's own copy in one click. We would rather you did — the claim this product makes is that these are genuinely new practices, and that is a claim you should be able to test rather than take on trust.

Practice (legal business) name, the authorized official / owner on the registration, the practice's registered phone number, full practice address including ZIP, specialty, and the date the NPI was enumerated. Fields come straight from the registry as filed; we don't add trade names ("doing business as"), because the registry rarely carries one for a brand-new practice. Note that the registry lists the practice's own phone line, not a personal cell, and it does not carry email addresses — this is a phone and direct-mail channel.

Delivered every Monday, the same day the data is released. CMS publishes each week's registrations at about 1am Mountain on Monday; our pipeline picks them up automatically within minutes, and your list covers the week that closed the night before. Over the four weeks ending 30 August 2026 the feed produced 1,690 genuinely new practices across all specialties, of which 127 were dental, after removing relocations, re-incorporations, and chain locations. Week to week that has run between about 330 and 465 nationally, and 29 to 36 dental. Those are measured counts for a past window, not a guarantee — volume genuinely varies with what the registry publishes, and we report what we measured rather than a projection. You're buying a steady, clean stream, not a giant list padded with existing businesses.

No. Every row carries a state column, so you filter to your states in one click in Excel or Google Sheets and ignore the rest. The flat rate is exactly why there are no per-lead fees. You're never charged for the rows you don't use. One honest caveat: a single state can run thin in a given week, so the national stream is really the product: you subscribe to a steady weekly flow and pull your states out of it each time.

Here is every state, so you can check yours before you pay rather than after. These are monthly rates measured over the last four weekly runs, on exactly the basis we deliver. Seventeen states produced no new dental practice at all last month — if yours is one of them, the national feed is the product and a single state is not.

To see what your territory actually looks like before you decide, pick your states in the sample form above — choose as many as you cover, and we'll pool them into one file. We draw from several recent weeks rather than a single one, because a single week is too small a window to judge a state by, and we'd rather show you the real density than a flattering slice.

The most recent week is reserved for paying subscribers, so your free sample is drawn from a slightly earlier week. We'll email it to you within 2 business days of your request.

Anytime, self-serve, through the billing portal. No email or call required. Manage your subscription here.