I Started Credentialing Before I Opened. Delta Still Took 6 Months.

I did the smart thing. Before I signed the lease, I started credentialing with every insurance plan I wanted to accept.

I still had a plan that took six months.

Delta was the slowest — and the most consequential, because Delta is what half my prospective patients had. Every week we opened without it in-network was a week we quietly turned away calls without knowing it.

Here's what nobody tells new owners about credentialing.

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Part 1 — Submitting the Paperwork Is 20% of the Job

Credentialing is how insurance plans verify your license, your NPI, your malpractice, your school, your training — and then formally add you to their in-network provider list.

The version most new owners hear: "It takes 90 to 120 days. Submit early, and you'll be in-network by opening day."

The version that's actually true: it takes as long as the slowest plan takes, and the plans have no incentive to move fast.

Every plan runs its own process. Some are fast (60-90 days). Some are slow (120-180). Delta was six months for me — and the six-month clock did not start when I submitted paperwork. It started when they acknowledged receipt, then paused every time they had a question I didn't know they had, then paused again when a document expired mid-process, then paused a third time when they lost a form I had to resubmit.

Submitting the paperwork is 20% of the job. The other 80% is following up.

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Part 2 — The Delta Follow-Up Loop

Here is what "following up" actually looked like with Delta:

Month one: Submitted the initial application. Confirmation email. All good.

Month two: Silence. Called their provider relations line. Sat on hold. Was told "your application is in queue for review."

Month three: Still silence. Called again. This time was told they needed an updated copy of my malpractice certificate because the one I'd sent was set to expire in 90 days. Nobody had emailed to say so.

Month four: Sent the updated malpractice. Called two weeks later to confirm receipt. Was told they hadn't gotten it. Sent again. Called back. Confirmed receipt.

Month five: Silence. Called. Was told they were "waiting on primary source verification of my dental school." My dental school, incidentally, had responded within a week when they were contacted directly — I found this out later by calling my school myself.

Month six: In-network. Effective date set. Called our front desk, told them we could now schedule Delta patients. That week, our new-patient calls jumped noticeably. Not from marketing. From patients who had called earlier, been told "we're not in-network yet," and put us on a list.

Six months of turned-away calls that we never even counted, because the front desk was politely saying "not yet."

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Part 3 — What I'd Do Differently

Three things I wish someone had told me clearly:

1. Start CAQH the day you know you're opening a practice.

CAQH (Council for Affordable Quality Healthcare) is the universal credentialing database that most major plans pull from. Setting it up takes about 4-6 hours the first time. Every plan that pulls from CAQH shaves weeks off your process. I didn't set mine up until years in — that alone probably cost me many months across multiple plans.

2. Assign one person, one hour a week, to nothing but follow-up.

Not "someone will follow up." A specific person, a specific hour, a running spreadsheet: what plan, what status, when last contacted, what they said, what's next. Follow-up is the job. The provider relations lines will not call you back. You have to be the one calling.

3. Rank the plans by who your patients actually have — and prioritize the top three.

Not every plan matters equally. Look at your target demographic and identify the 2-3 dominant plans. Prioritize those in your follow-up cadence. Being in-network with a plan nobody in your area carries doesn't help. Being out-of-network with the plan half your prospects have is a silent revenue killer for months on end.

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Part 4 — The Honest Frame

Credentialing is unglamorous. There's no story about closing a big deal or building a beautiful operatory. It's phone tag with bureaucracies for months while everything else in the practice is asking for your attention.

But it decides, quietly, whether the marketing you're doing converts into actual patients or into "call us back when you're in-network."

The question is not: "Did I submit the paperwork?"

The question is: "Did I close the loop on every plan that matters — and do I have a system to keep closing loops until the effective dates land?"

If you can answer yes, you're doing more than most new owners. If you can't, you're going to lose months of new-patient revenue you'll never see reflected in a report, because the calls you didn't get don't show up in any dashboard.

Reply and tell me where you are in this — pre-credentialing, mid-process, or already open and wondering why the phones aren't ringing. I read every one.

— Jennifer