The email arrives in the first week of February. "Dr. Patel starts April 1. Can we get her credentialed by then?" The offer was signed in December. Nobody opened the file. With eight weeks to go, the honest answer is: with Medicare, probably; with most commercial plans, probably not; and the practice is going to need a plan for the gap either way.
This is the most common credentialing conversation we have in January and February, because so many physician contracts start at the beginning of a quarter and so many practices treat enrollment as something that begins on the start date. What follows is the plan we use when the calendar is already against us. It will not make a payer move faster, but it puts the practice's revenue in the right order and stops the two mistakes that turn a late start into a write-off.
Key takeaways
- Spend the first five business days completing the file and the CAQH profile. A complete application submitted once beats a fast application returned twice.
- Submit Medicare and the top five commercial plans in the same week, in revenue order. The long tail can wait.
- Medicare's effective date rules usually cover a start date that falls after the application is filed, and allow billing back 30 days before the effective date. Most commercial plans offer nothing retroactive.
- Until a plan is effective, the new provider does not see that plan's patients as a billable provider. Give the scheduler a weekly effective-date list.
- Held claims are money. Track the oldest date of service in the hold queue every week against each payer's filing limit.
Week one: get the file complete, not just started
Every day spent chasing a document is a day the application is not in the payer's queue. In the first five business days we collect and check, for the incoming provider: the Type 1 NPI and its taxonomy, the state license and its expiration, DEA registration if applicable, board certificate or eligibility letter, a CV with month and year for every position and an explanation for every gap longer than a month, the malpractice face sheet with coverage dates and limits, a government ID, hospital privileges if the plans require them, and a signed authorization letting the practice act with payers on the provider's behalf.
Then CAQH. If the provider has a CAQH ProView profile from a previous employer, it is usually stale: expired attestation, documents that lapsed, a work history that ends two jobs ago. Update it, re-attest, and authorize the new practice to view it. If there is no profile, create one now, because most commercial plans will not process without it. Providers coming out of residency in the spring are the hardest case: the license may not issue until May or June, and nothing moves until it does. For those, the file is prepared in full so that the day the license number arrives, every application goes out the same afternoon.
Rank the payers by revenue and submit in that order
Pull twelve months of payments for the practice by payer. The top five plans usually represent 70 to 80 percent of revenue. Those applications go first, in the same week. The long tail can wait a week or two. Submitting all twenty at once feels productive, but it spreads the follow-up work thin and the important ones get the same attention as the plan that pays $400 a month.
| Payer type | Typical time from complete submission | Retroactive billing | What to do for an April 1 start |
|---|---|---|---|
| Medicare (PECOS) | 30 to 60 days | Effective date is the later of the filing date or the date services began at the location; billing allowed for up to 30 days before the effective date | Submit by mid-February; hold claims and release when approved |
| Medicaid fee-for-service | 30 to 120 days by state | Varies by state; some allow it, some do not | Submit now; ask the state office about retroactive rules in writing |
| Medicare Advantage | 60 to 120 days | Usually not | Submit with the commercial application from the same carrier |
| Commercial plans | 60 to 120 days | Usually not; some allow a short window on request | Expect approval in May to July; schedule around them |
The Medicare rule is the one that saves a late start. Under the enrollment regulations, a physician's effective date is the later of the date the application was filed or the date the physician first began furnishing services at the new location, and Medicare allows billing for services furnished up to 30 days before that effective date. So a complete PECOS application submitted in February for an April 1 start generally has an April 1 effective date once approved, and claims held from April can be released when the approval letter arrives. If the application slips to April 20 because the file was incomplete, the effective date moves to April 20 and the 30-day retrospective allowance reaches back only to March 21, which still covers the start date but with no room to spare. Commercial plans usually do not offer that. A visit with a commercial patient on April 10, before the plan's effective date, is typically not payable by that plan at all.
Schedule around the plans that are not ready
This is the part that most practices resist and that matters most. Until a plan's effective date arrives, the new provider should not see that plan's patients as a billable provider. The scheduler needs a simple list, updated weekly: plans where Dr. Patel is effective, and plans where she is not. Front desk staff book her with Medicare patients and with any plan that has approved, and route other patients to the existing providers until each approval comes in. The list lives in the scheduling system as a provider note, not in someone's email.
Two workarounds get suggested every time and both are wrong for most situations. Billing the new provider's visits under an established provider's NPI is not "incident to" billing unless the narrow Medicare conditions are met (an established patient, an established plan of care, direct supervision), and for new patient visits it is not allowed at all. Doing it anyway is a false claim, not a shortcut. The locum tenens arrangement (modifier Q6) is for a substitute physician covering an absent one for up to 60 continuous days; it is not a way to bill a permanent new hire. If someone in the practice proposes either, the answer is no, and counsel will say the same.
Hold claims, but track them like money
For Medicare, and for any plan that allows retroactive effective dates, the practice will accumulate held claims. A hold queue that nobody watches is where timely filing dies. Set the hold with a reason code that names the payer and the provider, record the oldest date of service in the queue every week, and know the filing limit for each payer. Medicare allows twelve months from the date of service, so April claims are safe until the following April. Commercial limits of 90 or 180 days are not generous. When the approval letter arrives, enter the effective date and provider number the same day and release the queue in date-of-service order.
A held claim also needs the right patient conversation. A Medicare patient seen on April 8 will not see a claim on their Medicare summary notice for weeks, and some will call. The front desk script is one sentence: "Dr. Patel's Medicare enrollment is being finalized, and your visit will be billed to Medicare as soon as it is; you will not be charged for the delay."
Follow up on a calendar, not when you remember
Every application gets a submission date, a reference or tracking number and a follow-up date two weeks later. Payers rarely call to say an application is incomplete. In our experience roughly a third of first submissions draw a request for something: an updated malpractice sheet, a signature that is now more than 30 days old, a missing location. Answer within two business days. An application that has had no status change in 30 days gets a phone call, with the reference number ready. Log every contact with the date, the person, and what they said, because the third call goes better when you can quote the first two.
What the delay costs, so the practice takes it seriously
A family physician seeing 18 patients a day, four days a week, with an average reimbursement of $110, generates about $32,000 in monthly charges. If 60 percent of the practice's patients are on commercial plans that will not be effective until June, roughly $19,000 a month is either rerouted to other providers, rescheduled, or lost. Two months of that is close to $40,000. The cost of starting the file in December would have been a few hours of a coordinator's time. Put that number in front of whoever signs the next offer letter, and change the onboarding checklist so the enrollment file opens the day the offer is signed.
Questions we hear
Can the new provider see commercial patients as self-pay until the plan approves?
Sometimes, but read the contract first. Many plan contracts prohibit billing members directly for covered services even when the individual provider is not yet effective, and patients rarely accept it anyway. Routing those patients to an effective provider is usually the cleaner answer.
The provider is already credentialed with these plans at another practice. Doesn't that carry over?
The credentialing (verification of license, training and history) often does, and it can shorten the timeline. The enrollment (linking the provider to your group's tax ID and locations) does not. Every plan still needs the group linkage, and some treat it as a full application. Ask each plan whether a "add to group" path exists; several do, and it is faster.
What does Revelrex do differently?
Our credentialing and provider enrollment team runs this triage on a fixed weekly rhythm, with reference numbers, follow-up dates and effective dates visible to the practice in a shared tracker, and hands the scheduler the effective-date list every Friday. Rates are on the pricing page.
What to do this month
- Open the file for every provider with a signed offer, even a start date in June. The start date is not the trigger. The signature is.
- Complete the document checklist and the CAQH profile in the first five business days.
- For an April 1 start, submit Medicare and the top five commercial plans by mid-February and record every reference number.
- Give the scheduler the effective-date list and review it every Friday.
- Create the held-claims queue with a named owner and a weekly oldest-date-of-service check.
- Calendar revalidation: Medicare every five years, most commercial plans every three, CAQH attestation every 120 days.
