How long does credentialing take?

Plan on 90 to 120 days from a complete file to usable effective dates across a normal payer mix, and up to 150 days when a commercial panel is backed up or closed to your specialty. Medicare is often the fastest payer in the set: CMS holds its contractors to processing 95 percent of clean electronic applications within 15 calendar days, and the harder ones within 50. Commercial payers are the long pole, because credentialing and contracting are two separate queues and the contract has to load before a claim pays.

The numbers people quote you (60 days, 90 days) are usually a payer’s target for a perfect file. Most files are not perfect, so below are the rules that set the clock.

Credentialing timelines by payer

The ranges below are what we plan around. The rule-based numbers in the next two sections are the ones you can hold a payer to.

Two things in that table surprise people. First, Medicaid is two steps, not one: you enroll with the state, and then every Medicaid managed care plan you want to be in credentials you again, because federal rules require each state to set a uniform credentialing policy and require each managed care plan to follow its own documented credentialing process. Second, a commercial approval is not a payable contract. Approval and loading are different events, and the loading step is where quiet months happen.

In short: budget 90 to 120 days. Medicare and Medicaid move faster than commercial. The gap between an approval and a loaded contract is the part nobody warns you about.

How long Medicare enrollment takes

Medicare is the one payer that publishes its own processing standards, in Chapter 10 of the Medicare Program Integrity Manual. For initial applications, contractors are held to:

• Electronic (PECOS), nothing extra needed: 95 percent within 15 calendar days, 100 percent within 50.
• Electronic, needing a development request, site visit or fingerprints: 95 percent within 50 calendar days, 100 percent within 85.
• Paper, nothing extra needed: 95 percent within 30 calendar days, 100 percent within 65.
• Paper, needing development, a site visit or fingerprints: 95 percent within 65 calendar days, 100 percent within 100.

Those are calendar days, not business days, and the clock temporarily stops in a long list of situations: a referral to the OIG, a question sent to CMS, a call to a state licensing board, a referral back to you to fix NPPES, or a fingerprint request. That is why a “60 day” application turns into four months without anyone breaking a rule.

The same manual gives you your own deadline. When the contractor asks for missing or clarifying information, you have 30 calendar days from the date the request is sent, and the contractor only has to ask once. Miss it and the application can be rejected or denied, and you start over at the back of the queue.

Which form you file depends on who is enrolling. Individuals, including nurse practitioners, physician assistants, clinical psychologists, clinical social workers, marriage and family therapists, mental health counselors, and physical, occupational and speech therapists in private practice, all enroll on the CMS-855I. Clinics and group practices enroll on the CMS-855B. The standalone CMS-855R reassignment form is gone: CMS merged it into the CMS-855I, and since November 2023 contractors return applications filed on the old CMS-855R. If a vendor or a checklist still tells you to file an 855R, it is out of date.

Effective dates: when you can actually bill

This is the part that costs money. Under 42 CFR 424.520(d), the effective date of Medicare billing privileges for physicians, non-physician practitioners, their organizations, and physical, occupational and speech therapists is the later of the date you filed an application that was later approved, or the date you first started furnishing services at the new location. Filing early protects you. Filing late does not get fixed by an approval.

Medicare then allows a limited look back. Under 42 CFR 424.521(a), those same provider types may bill retrospectively for services furnished at the enrolled location for up to 30 days before the effective date if circumstances prevented enrolling in advance, and up to 90 days if a presidentially declared disaster did. Thirty days is the normal ceiling. It is not a grace period you can plan a hire around.

Medicaid and commercial are different animals. Medicaid effective dates and any backdating are set state by state, so read your state’s provider enrollment policy before you assume a retroactive date. Commercial plans generally pay from the effective date forward, and some states go further: Maine, for example, bars a provider from submitting claims for services given before credentialing until the carrier has told the provider whether it credentialed them and what the effective date is.

The gap between the day you start and the day your dates land is where practices lose money quietly. Put real dates in and see how many weeks of visits are exposed.

What slows credentialing down

Almost every delay we see is one of these, and most are avoidable in week one.

• Documents that are missing or expired. State license, DEA registration, malpractice face sheet, board certificate, government ID, diploma, W-9, and a CV with months and years that leave no unexplained gaps.
• CAQH not attested, or the payer not authorized. A profile is only usable once you attest to it, and only by the organizations you have authorized. CAQH notifies you every 120 days (every 180 days in Illinois) to log in and re-attest. If the payer is not on your authorization list, nothing you do in the portal reaches them.
• NPI and taxonomy that do not match. If your NPPES record disagrees with your application, a Medicare contractor can refer you back to fix NPPES and the processing clock stops while you do.
• Work history gaps and malpractice or license history. Any gap, settlement, board action or lapse needs a written explanation attached up front, not supplied after a reviewer finds it.
• Wrong practice location data. The address on the application has to be the address where services are furnished, and it has to survive a site visit.
• Closed panels and payer backlogs. Some commercial panels are closed by specialty and geography. That is a contracting decision, not a credentialing delay, and no amount of follow-up fixes it.

Some provider types take longer for predictable reasons. Nurse practitioners and physician assistants file the same Medicare form as physicians, but state scope-of-practice and collaboration documents, plus commercial plans that credential them only under a supervising physician or only after the group contract exists, add weeks. Behavioral health providers (licensed clinical social workers, licensed professional counselors, psychologists) run into separate behavioral health networks with their own credentialing committees and their own panel decisions, which is worth planning for if you run a psychiatry or behavioral health practice. Physical therapy practices hit a different problem: they are named in the Medicare effective-date rule above, so a therapist who starts treating before the application is filed has no retroactive window beyond 30 days.

Can a pending provider see patients?

Yes, legally, in most cases. Getting paid for those visits is the question, and the answer is payer by payer.

• Medicare: you can bill back up to 30 days before the effective date, if all program requirements including state licensure were met and services were furnished at the enrolled location. Beyond that window, those visits are not payable.
• Medicaid: retroactive rules are set by each state. Some states will date you back to the day a complete application was received, others will not backdate at all.
• Commercial: most plans pay from the effective date forward and nothing earlier, and some states prohibit submitting pre-credentialing claims until the carrier confirms the date. A handful of states run expedited credentialing programs for providers joining an already contracted group.

The practical options are to hold the claims until dates are confirmed, to schedule the new provider only against payers that are already effective, or to bill under a supervising provider where the payer’s own rules and your state’s scope rules allow it. That last one is where practices get into trouble, so confirm the payer’s written policy first and, if the answer is not clearly written, check with your health care attorney. Running eligibility and benefits verification at scheduling is what keeps a pending provider off the schedule for payers who will not pay.

When to start: a 120-day plan

Start 90 to 120 days before the first patient. If a commercial panel in your market is slow, make it 150. Here is the week-by-week version.

The weekly follow-up line is what moves the date. Payers rarely tell you an application stalled; you find out by asking, and by answering requests the day they arrive.

Recredentialing and revalidation

Credentialing is not a one-time project. Four clocks keep running, and a lapse can deactivate your billing privileges or drop you out of network.

• Medicare revalidation, every 5 years. 42 CFR 424.515 requires providers and suppliers to resubmit and recertify the accuracy of their enrollment information every 5 years, and CMS can also require off-cycle revalidations. DMEPOS suppliers are the exception, on a 3-year cycle.
• Medicaid revalidation, every 5 years. Under 42 CFR 455.414, the state Medicaid agency must revalidate every provider, regardless of type, at least every 5 years. Some states run a tighter cycle.
• Commercial recredentialing, every 36 months. NCQA requires recredentialing every three years, and because most commercial plans are accredited against those standards, 36 months from your last credentialing decision is the cycle you should expect.
• CAQH re-attestation, every 120 days. Or every 180 days in Illinois. This is the one that lapses most often, and a stale profile can stall a recredentialing cycle that would otherwise have been automatic.

Put all four on a calendar with a 90-day warning, not a 30-day one. A missed revalidation is far more expensive to fix than the original application.

What it costs and how we run it

What it costs

Credentialing is priced per payer application, not per hour. It is $189 per payer application. The per-payer price drops as you add payers: $150 per payer for up to 7 payers, and $120 per payer for up to 20 payers. There are no setup fees.

Each application includes the CAQH check (built or updated, attested, with your payers authorized), the application itself, weekly follow-up with the payer until it is approved, the effective date confirmed in writing, and EFT and ERA set up so the money and the remits actually arrive.

How we run it

We build or clean the CAQH profile first, because a stale profile is the single most common reason a commercial file sits. Then Medicare and Medicaid go in through PECOS and the state portal, commercial applications go in by priority after we confirm the panel is open, and every payer gets followed up weekly with a live status tracker you can see. We get effective dates in writing, chase retro billing where the payer allows it, and track revalidation and recredentialing dates before they lapse rather than after.

For the order to file in, from NPI and CAQH to Medicare, Medicaid and commercial panels, see how to get credentialed with insurance companies. If you want the dates handled and the follow-up done by someone whose job it is, see provider enrollment and credentialing. To stop losing the claims that credentialing delays create, pair it with medical billing so pending providers, held claims and effective dates sit in one place.