Which kinds of doctors are leaving Medicare, and where?
There's a public list of every doctor signed up to treat Medicare patients, with their field and their state. On its own it's just a directory, a snapshot of who's in today. The questions that matter are about movement: is a field gaining doctors or losing them, and is it happening everywhere or in a few states that can least afford it. Track that list over time and you can simply ask which fields are growing and which are quietly pulling back.

A directory is not a trend.
The public list tells you who's enrolled to treat Medicare patients right now, the doctor, the field, the state. That's handy as a directory, but the interesting questions are about change: is a field adding doctors or losing them, is the shift national or stuck in a few states, is the thinning happening where access is already shaky. A single snapshot can't answer any of that, because change only shows up when you compare one moment to the next.
Keep every version of that list and the directory turns into a story over time. You can count doctors by field and state across the months, watch the gains and losses, and tell the fields that are growing their Medicare presence from the ones that are shrinking, with the geography attached so you can see exactly where the gaps are opening.
Questions you can finally ask.
Each is a question you simply ask and get an answer to, not a three-week analysis project.
Which fields are gaining Medicare doctors?
Count doctors by field over time to rank the ones expanding their Medicare presence against the ones shrinking it.
Where is a field thinning out?
Break the count down by state to find where a given field is losing Medicare doctors, the early warning of an access gap.
Which states are gaining doctors fastest?
Rank states by net change to see where Medicare participation is growing, not just where it's already largest.
How much is real growth versus churn?
Track who's actively practicing versus dropping off, to separate genuine growth from doctors simply rotating in and out.
Which fields lean on just a few states?
See how evenly a field's doctors spread across the country to spot the ones that are geographically fragile.
Where do declines pile up?
Find states where several fields are shrinking at once, the markets where Medicare access is eroding across the board.
What the answer pulls together.
Who's signed up to treat Medicare
The public list of every doctor enrolled to see Medicare patients, the backbone behind every count and trend.
What kind of doctor each one is
The field listed for each doctor, so they can be grouped and compared one specialty against another.
Where they are, and whether they're active
The state and active status on each record, the pieces that turn a flat directory into a trend over time.
Access gaps don't announce themselves. They show up as a field quietly signing up fewer doctors in a state nobody was watching. The list already knows, if you read it across time.
What people ask about this.
Does being signed up mean actively practicing?
Being signed up means a doctor is registered to treat Medicare patients, not a direct count of visits. But it's the cleanest public signal of who's in the program, and tracking it over time reveals real entry and exit. Read as a participation trend rather than a count of appointments, it's exactly the right tool for spotting fields and states that are growing or pulling back.
Why look across time instead of one list?
A single list is a snapshot, it tells you who's in today but nothing about direction. Growth and decline only appear when you line up version after version and measure the change by field and state. Keeping that history is what makes the trend a question you ask, not a manual diff of spreadsheets.
How current is the answer?
It stays current on its own. When new information is published, it's already in there, so you're asking against today's picture, not a year-old extract.
Want the trend
for your specialty?
Whether you recruit, run a health system, or track access, I can get you the exact joining-or-leaving answer you need.