Credentialing & Enrollment

What credentialing actually is.

Credentialing is the process payers use to verify that you are who you say you are: licensed, trained, board-certified (or in the process), insured, and clear of fraud history. It is separate from enrollment, but the two run together and the industry uses the words interchangeably.

The payer verifies your credentials. The payer then enrolls you in their network and assigns you an effective date. Before that effective date, you can see the payer's members — but you bill out-of-network, and most plans pay you very little (or nothing). After the effective date, you bill in-network at contracted rates.

Every payer does this independently. There is no centralized credentialing in the United States. The closest thing is CAQH — a free service most commercial payers use to pull your application data — but Medicare, Medicaid, and many regional plans still want their own forms.

The realistic timeline.

Plan for 90 to 180 days from a complete application to an effective date. Some payers are faster. Some are slower. None are predictable enough to plan around their best case.

Medicare runs 45 to 90 days from a clean CMS-855 submission. Medicaid varies wildly by state — 60 to 120 days is typical. Commercial payers (Blue Cross, UnitedHealth, Aetna, Cigna) run 90 to 180 days, and a few — Tricare, certain state Medicaid plans — can stretch beyond 180.

The biggest variable isn't the payer. It's whether your application is complete on first submission. Incomplete applications get queued behind complete ones, and a missing document can cost you 30 to 60 days that don't come back.

When to start.

Start 180 days before your target open date. Not 90. Not 60. One hundred and eighty.

This seems aggressive. It is not. By T-180 you should have CAQH fully attested, your medical license verified in your state of practice, your NPI active for the correct entity, and your malpractice insurance confirmed. By T-150 your Medicare and Medicaid applications should be submitted. By T-120 your commercial applications should be submitted. By T-60 you should be following up with every payer biweekly to verify effective dates.

If you cannot start credentialing 180 days before launch — because you can't give notice yet, or you don't have a practice address, or your entity isn't formed — then your launch date has to move. Credentialing does not negotiate.

Who pays during the gap.

You do. This is the part most pro formas underestimate.

Even after you open, you'll bill insurance for 30 to 60 days before payments arrive. If your credentialing isn't complete on day one, you'll either see patients at lower out-of-network rates or push your open date back. Both options cost real money.

The practical answer is a working-capital reserve sized for the worst case: six months of full operating costs in addition to startup capital. Most practices reach break-even months 7 to 12, not months 3 to 4 — and the difference is almost always credentialing-related.

Common ways credentialing fails.

Starting too late. Most physicians plan around the best-case payer timeline (90 days for commercial). When that timeline slips — and it always slips somewhere — they don't have margin.

Incomplete CAQH. CAQH attestations have to be current. An expired attestation means payers can't pull your data, and your application stalls without you knowing.

Wrong entity on the application. Your enrollment is tied to the legal entity, not to you personally. If your practice's entity isn't formed before you start credentialing, you'll have to redo applications.

Not following up. Most payers will not contact you when something is missing. They sit on it. You have to call every two weeks until you have an effective date in writing.

Missing state-specific Medicaid quirks. Each state's Medicaid plan has its own forms, training requirements, and provider ID schemes. Generic guidance does not apply.

Doing it yourself vs. hiring a credentialing team.

You can credential yourself. Plenty of physicians do. The cost is your time and the risk of a 30 to 60 day delay if you miss something.

A professional credentialing team typically charges $200 to $500 per provider per payer, with discounts at volume. For a single physician launching with eight commercial payers plus Medicare and Medicaid, expect $2,000 to $5,000 in credentialing fees as part of your startup costs.

The break-even math: if a credentialing team can prevent even 30 days of revenue loss on a single payer, they pay for themselves. For a primary care practice billing $30,000 to $50,000 a month, that's the entire credentialing budget recovered in one prevented delay.

We run our own credentialing crew because it's the phase where the most expensive mistakes happen and we'd rather control the work than coordinate with another vendor on the most time-sensitive part of your launch.

What to do in the next 30 days.

Verify your CAQH is current and fully attested. If you're more than 90 days past your last attestation, refresh it now.

Confirm your NPI is active and tied to the entity you'll practice under. If you don't have an entity yet, that's Phase 03 — finish that first.

Make a payer list. The top eight commercial payers in your geography by membership, plus Medicare, Medicaid, Tricare if applicable.

Decide who's running credentialing — you or a team. If you, block 4 to 6 hours a week on your calendar for 18 weeks. If a team, get them engaged this month, not next month.