Provider credentialing and payer enrollment take 90 to 150 days per provider, and that timeline, more than almost anything else, determines whether a new practice opens on solid financial footing. This post explains why the clock matters and how to plan around it.
Opening a new practice involves a hundred decisions, but few carry the financial weight of credentialing. Provider credentialing and payer enrollment typically take 90 to 150 days per provider, and unlike most launch tasks, this one runs on the payer’s schedule, not yours. Miss the window, and you open your doors unable to bill the payers that cover your patients. Plan for it correctly, and credentialing becomes the quiet foundation that lets you collect revenue from your very first visit.
Why Credentialing Takes So Long
Credentialing is the process by which payers verify a provider’s qualifications, licensure, education, and history before agreeing to reimburse them. Payer enrollment is the related step of getting each provider set up to bill a specific plan. Both involve document collection, primary source verification, and payer review queues that you do not control. Ninety to 150 days is a realistic range, and some payers or complex situations run longer. The timeline is largely out of the practice’s hands once an application is submitted, which is exactly why the submission has to happen early.
The consequence of the timeline is simple and unforgiving. A provider who is not yet enrolled with a payer cannot bill that payer for services delivered. If you open before enrollment clears and start seeing patients covered by those plans, you are delivering care you may not be able to collect on. Many new owners learn this the hard way, weeks into operations, when the first claims come back unpayable.
The Revenue Gap Nobody Warns You About
The gap between opening day and full enrollment is where new practice finances go wrong. Say you open in month one but a major payer does not complete enrollment until month four. Every patient with that plan seen in the interim represents work performed without a clear path to payment. Even if some of that revenue can be recovered retroactively, much of it cannot, and the cash flow crunch in those early months is often what puts a young practice under pressure at the worst possible time.
This is the situation new practice owners describe most often when they seek help: accounts receivable climbing, cash flow that does not match patient volume, and no clear sense of whether their billing is even set up to get paid. It traces directly back to credentialing that started too late or was not sequenced with the open date in mind.
How to Plan the Timeline Correctly
- Start early. Begin credentialing three to five months before your planned open date, before you sign a lease if possible, so the payer clock is already running when you need it.
- Sequence your payers. Identify which payers will cover the largest share of your expected patient volume and push those enrollments first, so your biggest revenue sources are active soonest.
- Track every application. Monitor each provider and payer combination so a stalled application is caught early, while there is still time to adjust, not after the denials arrive.
- Build billing in parallel. Set up your systems, connections, and clean claims workflow while enrollment is underway, so nothing waits until the last minute.
- Confirm before you open. Verify which payers are active before your open date and plan your early schedule around what you can actually bill.
It Is Not Just New Providers
The 90 to 150 day timeline applies well beyond the initial launch. Every time you add a provider to an established practice, that provider goes through the same credentialing and enrollment process before they can bill. A new hire who starts seeing patients before enrollment clears creates the same revenue gap a new practice faces, just on a smaller scale. Growing practices that do not plan credentialing around hiring dates end up absorbing weeks of unbillable work every time they expand.
Revalidation adds another recurring deadline. Payers require providers to periodically revalidate their enrollment, and a missed revalidation can drop a provider out of the network, halting payment until it is resolved. Most payers will not backdate payments to cover a lapse. Keeping a credentialing calendar for every provider, tracking initial enrollment, re enrollment, and revalidation dates, is what prevents these avoidable gaps from quietly draining revenue long after the practice has opened.
Where an Experienced Partner Changes the Outcome
Credentialing rewards planning, and planning rewards experience. MHS has launched and managed billing for practices for more than 35 years across over 25 specialties, and we treat a new practice launch as a credentialing project with a deadline, your open date. We start enrollment early, sequence it around your payer mix, and keep your billing workflow building in parallel. Our provider credentialing services get every provider in the network on schedule, and our revenue cycle management is ready the day you see your first patient.
The payoff is a launch without the revenue gap. Practices we manage see a 98.5% clean claim rate and a 93.5% first pass resolution rate, and for a new practice that means starting on solid financial footing instead of spending the first year recovering from a slow start. For a full view of how we set up new practices, see our medical billing services for new practices.
Frequently Asked Questions
How long does provider credentialing take?
Provider credentialing and payer enrollment typically take 90 to 150 days per provider. Because the timeline runs on each payer’s schedule rather than the practice’s, credentialing should start months before the open date.
Can a new practice bill before credentialing is complete?
Generally no. A provider who is not yet enrolled with a payer cannot bill that payer for services delivered. Seeing patients before enrollment clears creates a revenue gap that may not be fully recoverable.
When should a new practice start credentialing?
A new practice should start credentialing three to five months before its planned open date, prioritizing the payers that will cover the largest share of its patient volume so the biggest revenue sources are active first.
Launch on Solid Financial Footing
Credentialing timing is one of the few launch decisions you cannot redo later. Start it early and sequence it right, and your new practice can bill from day one. Contact MHS today for a free analysis and discover how expert revenue cycle management can transform your organization’s financial performance.
