We Checked 14,000 Arizona Medical Practices Against the Federal Registry. Here's What We Found.

Every healthcare directory says it's "trusted." Almost none of them tell you what that word costs.

We can, because we just paid it. To build City Select — Arizona's verified medical directory — we started from the National Provider Identifier registry, the federal government's official record of licensed providers, checked roughly fourteen thousand practice records against it, then crawled, read, and hand-reviewed thousands of practice websites to enrich each profile. What survived that process is the live directory: 12,989 verified practices across 32 cities. Not sampled. Every practice, in every city we cover.

Here's what the process taught us about why finding a doctor online is so much harder than it should be.

Finding #1: The information patients need most is the information practices publish least

The single most common question anyone has about a doctor: do they take my insurance?

When we crawled and reviewed Arizona dental practices, 61% — nearly two out of three — had no findable insurance information online. Not buried in a FAQ; absent entirely, or hidden deep enough that our human reviewers had to dig for it manually. Even restricting to practices that have websites, more than half still publish nothing about the plans they accept.

Multiply that by every specialty, and you understand why finding care feels like a phone-bank shift: the system's most-asked question is the one it never answers in writing. That gap is now our favorite feature — City Select surfaces accepted insurance wherever it can be verified, and the directory filters by plan, so "who takes Delta Dental in Phoenix" becomes a click instead of an afternoon.

Finding #2: A meaningful slice of healthcare is invisible online

About one in five Arizona dental practices (21%) has no findable website at all. Real practices, real patients, real licensed providers — no web presence a patient can evaluate. If you've ever concluded "I guess that office closed" because Google showed you nothing, you've met this problem. The federal registry sees these practices; the internet doesn't. Now the directory does.

Finding #3: "Verified" is a decision you have to keep making

The dirty secret of programmatic directories is entropy. Public data is messy: registries lag reality, practices move, chains register a dozen entities at one address, and scraped websites cough up navigation menus where their services should be.

So verification at City Select isn't a launch-day stunt — it's a pipeline. Records are checked against NPI at intake, enriched from primary sources, run through automated quality filters, and the hard cases go to a human review queue. When we find closures, duplicates, or data collisions, we fix the data — we don't publish it and hope. Every profile shows its last-verified date, and every page tells you exactly where its information came from.

Is it perfect? No dataset of 13,000+ living businesses ever is — which is why every profile also has a one-click correction path, and why practices can claim their listing free and confirm their own facts. Verification plus humility: that's the whole method.

Why we're telling you how the sausage is made

Because in healthcare, how you know matters as much as what you claim. Any site can put "trusted" in a hero banner. We'd rather show receipts: our data and editorial standards are public, our featured placements are labeled every time they appear, and our answer to "how do I know this doctor is real?" is a federal registry, not a pinky promise.

The early signal says patients wanted exactly this: within the first week of launch, City Select was appearing in thousands of searches, and practices began claiming their profiles unprompted.

Patients: your directory is at cityselectmedical.com. Providers: your verified profile already exists — claim it free and make it yours.

City Select is Arizona's verified medical directory — 12,989 NPI-verified practices across 32 cities and 38 specialties. Free for patients, always. How we verify →