Notice given, nothing set up: which launch clocks run on their own time

Sort the list by who owns the clock

Start with whatever a stranger has to approve. Enrollment applications, credentialing files, a malpractice binder and the election on your old group coverage all move at a speed you do not set, and every day one of them sits unstarted is a day added to the far end. The steps you can file yourself keep without cost. That single sort produces the order for the first month.

A state entity filing is the legal foundation for the bank account, the malpractice policy and the payer contracts, and it still does not go first, because the only person waiting on it is you.

Read the table by the middle column: every name in it that is not yours is a queue you can only join early.

The stack you file yourself: entity, EIN, NPI

Three of these you can put in motion yourself in an afternoon. The IRS issues an EIN immediately online once the application is approved 1Ref 1Internal Revenue Service (2026).Apply for an Employer Identification Number (EIN) online.That an EIN is issued immediately online once the application is approved, and that it is the free self-service identifier a new practice uses on payer paperwork instead of the owner's SSN., the constraints being one EIN per responsible party per day and the tool's posted daily hours. The state entity filing goes to your state's business filing office, which sets its own fee and its own processing options. The NPI comes by application through the National Provider System 2Ref 2U.S. Department of Health and Human Services (2025).45 CFR §162.410 — Implementation Specifications: Health Care Providers.That an NPI is obtained by application from the National Provider System, and that a covered health care provider must report any change in its required NPPES data elements within 30 days of the change. No initial NPI processing-time figure is claimed..

Order inside the group still matters, because the EIN application asks you to name the entity it belongs to. So the state filing goes first, then the EIN, then the bank account that wants both.

Most clinicians leaving a job already hold an individual NPI, and the record behind it is the part that goes stale. Federal rule requires a covered health care provider to report any change in its required NPPES data elements within 30 days of the change 2Ref 2U.S. Department of Health and Human Services (2025).45 CFR §162.410 — Implementation Specifications: Health Care Providers.That an NPI is obtained by application from the National Provider System, and that a covered health care provider must report any change in its required NPPES data elements within 30 days of the change. No initial NPI processing-time figure is claimed., and a practice address is one of those elements. The same rule reaches the practice as an organization, which obtains its own NPI by application.

The 30 days run from the change, whenever the paperwork gets done.

The Medicare date you cannot buy earlier

Filing early does not create an earlier effective date. For physicians, non-physician practitioners and physician organizations, the effective date of billing privileges is the later of two dates: the filing date of an enrollment application that is subsequently approved, or the date the provider first began furnishing services at that practice location 3Ref 3Centers for Medicare & Medicaid Services, U.S. Department of Health and Human Services (2025).42 CFR §424.520 — Effective Date of Medicare Billing Privileges.That the effective date of Medicare billing privileges for physicians, non-physician practitioners and physician organizations is the later of the filing date of a subsequently approved enrollment application or the date the provider first began furnishing services at that practice location.. Whichever falls second is the one that governs, so an application filed in March against a June opening yields a June date.

The reverse case has a ceiling written into the same subpart. Those same provider and supplier types may bill retrospectively for services furnished at the enrolled location up to 30 days before the effective date, where circumstances precluded enrolling in advance, and up to 90 days where a presidentially declared disaster applies 5Ref 5Centers for Medicare & Medicaid Services, U.S. Department of Health and Human Services (2025).42 CFR §424.521 — Request for Payment by Certain Provider and Supplier Types.The retrospective billing ceiling of 30 days before the enrollment effective date where circumstances precluded enrolling in advance, extended to 90 days under a presidentially declared disaster.. That window is measured backward from the effective date, so a slow application does not lengthen it. Dates of service earlier than the window are not billable to Medicare however the enrollment eventually lands.

So the first date of care does double duty: it is the day the practice opens, and it is the pivot the whole Medicare calendar turns on.

Put it on the calendar before the application goes in.

The clocks somebody else is holding

Credentialing, underwriting and records requests all sit in someone else's queue, and the only lever on them is the date you start. Payer credentialing is committee work at each plan, and its turnaround is commonly described in months; no federal rule sets a number. A malpractice carrier's binder waits on underwriting. Records for the patients who want to follow you wait on whoever holds the chart today.

Building CAQH ProView from zero is the piece you can do before any plan opens a file: license copies for every state you will practice in, the DEA registration if you prescribe, the malpractice declarations page once it exists, and a work history whose gaps are explained. An incomplete profile stalls at the first reviewer who opens it.

The records leg has a rule behind it. Under the federal right of access, an individual may direct a copy of protected health information in the designated record set to a named third party, by a written signed request naming the recipient, and the holder has 30 days to act, extendable once by up to 30 more days 6Ref 6U.S. Department of Health and Human Services (2026).45 CFR 164.524 - Access of individuals to protected health information.That an individual may direct a copy of protected health information in the designated record set to a named third party by written signed request, the 30-day response deadline extendable once by up to 30 more days, and the psychotherapy-notes carve-out.. Psychotherapy notes sit outside that right. Which organization carries the obligation depends on the arrangement you worked under, so the request goes to whoever the covered entity is on paper.

Whether you may invite a patient to follow you at all is a question about your departure agreement, and it is one of the few places on this list where counsel is worth the hour.

The 60-day election on your own coverage

The COBRA election on the coverage you are leaving does not start where most people count from. Federal law requires the election period to begin no later than the date coverage terminates, and to run at least 60 days from whichever is later: the date coverage is lost, or the date the election notice is sent 4Ref 4Office of the Law Revision Counsel, U.S. House of Representatives (2026).29 U.S.C. §1165 — Election.That the COBRA election period must begin no later than the date coverage terminates and must run at least 60 days from whichever is later, the coverage-loss date or the date the election notice is sent.. A notice that goes out late pushes the deadline out. The last day of work does not set it.

Sixty days is a floor, and a plan may allow longer. The notice itself names the dates the plan is counting from, which is the reason to file it with the launch paperwork.

What the statute does not do is tell you whether to elect. That comparison, against an individual policy with its own enrollment rules, wants the premium numbers side by side well before the window closes.

This is the only clock on the list that starts whether or not you do anything.

The runway number that sets the order

Before the sequence is worth arguing about, put a number on how long the household can go without practice revenue. The Small Business Administration's method for a startup budget separates one-time costs from recurring monthly ones, and counts at least a year of the recurring side 7Ref 7U.S. Small Business Administration (2026).Plan your business — Calculate your startup costs.The method of separating one-time startup costs from recurring monthly expenses and counting at least a year of the recurring side when sizing a practice's runway.. For a practice, the recurring side is where credentialing lag shows up: the months a plan spends reviewing a file are months of rent, software and insurance with no claims behind them.

That number also decides which model the calendar can afford. A cash or membership practice can see its first patient the week the entity exists, which is why the DPC equation turns on panel size and price. An insurance-based practice waits for the committees, and the wait is paid out of the runway. Whether a $5,000 launch clears it depends on what your fee schedule has to cover once claims start paying.

A first-month order of operations

Work the list by release date. Everything a stranger has to approve goes in the first week; everything you can finish alone goes in the second; and the two dates that anchor the rest, the first date of care and the date printed on the COBRA notice, go on the calendar before either week starts.

1. Fix the first date of care. The Medicare effective date is the later of the filing date and that day 3Ref 3Centers for Medicare & Medicaid Services, U.S. Department of Health and Human Services (2025).42 CFR §424.520 — Effective Date of Medicare Billing Privileges.That the effective date of Medicare billing privileges for physicians, non-physician practitioners and physician organizations is the later of the filing date of a subsequently approved enrollment application or the date the provider first began furnishing services at that practice location., and the retrospective window is measured backward from it 5Ref 5Centers for Medicare & Medicaid Services, U.S. Department of Health and Human Services (2025).42 CFR §424.521 — Request for Payment by Certain Provider and Supplier Types.The retrospective billing ceiling of 30 days before the enrollment effective date where circumstances precluded enrolling in advance, extended to 90 days under a presidentially declared disaster.. Every other Medicare question resolves once the date is fixed. 2. Open the credentialing and underwriting files in week one: the CAQH profile, the malpractice application and the Medicare enrollment. None of the three moves faster once it is in the queue. 3. Diary the COBRA deadline from the date on the notice. The 60 days run from the later of the coverage-loss date and the notice date 4Ref 4Office of the Law Revision Counsel, U.S. House of Representatives (2026).29 U.S.C. §1165 — Election.That the COBRA election period must begin no later than the date coverage terminates and must run at least 60 days from whichever is later, the coverage-loss date or the date the election notice is sent.. 4. File the entity, then the EIN, in the quiet week. The EIN issues immediately once the application is approved 1Ref 1Internal Revenue Service (2026).Apply for an Employer Identification Number (EIN) online.That an EIN is issued immediately online once the application is approved, and that it is the free self-service identifier a new practice uses on payer paperwork instead of the owner's SSN., and the state filing is what it waits on. 5. Update the NPPES record inside 30 days of the address change 2Ref 2U.S. Department of Health and Human Services (2025).45 CFR §162.410 — Implementation Specifications: Health Care Providers.That an NPI is obtained by application from the National Provider System, and that a covered health care provider must report any change in its required NPPES data elements within 30 days of the change. No initial NPI processing-time figure is claimed., and check that the practice location on it matches the one on the Medicare enrollment.

None of this shortens a plan's review. Starting it in week one is the whole of the lever, and the same is true of the binder and the election notice sitting in the mail.