Why Most Dental Practices Don't Bill Medical Insurance — And How to Start

Why Most Dental Practices Don't Bill Medical Insurance — And How to Start

Ask most dentists whether they bill medical insurance and you'll get one of two answers. Either they don't know they can, or they know they can but haven't figured out how.

Both answers point to the same problem: the workflow for dental-to-medical billing is complicated enough that most practices give up before they start. And that means most practices are leaving real money on the table every single month.

This post is an honest look at why that happens — and what it actually takes to build a medical billing workflow that works.

The Real Reasons Practices Don't Bill Medical Insurance

1. They don't know it's possible.

This is more common than you'd think. Medical billing isn't taught in dental school. It's not built into most practice management software. And because so few practices do it, there's no peer pressure or industry norm pushing dentists toward it. Many practices simply don't know the opportunity exists.

2. The coding is intimidating.

Dental billing uses CDT codes. Medical billing uses CPT codes for procedures and ICD-10 codes for diagnoses. These are completely different code sets with different logic, and crosswalking from CDT to CPT requires knowledge that most dental staff — and most dentists — don't have.

The fear of coding errors and subsequent denials keeps a lot of practices on the sideline. And it's a legitimate fear — a miscoded claim doesn't just get denied, it can flag your practice for audits.

3. The software doesn't support it.

Most dental practice management systems were built for dental billing. They don't have fields for medical insurance information, they don't generate CMS 1500 forms, and they don't connect to medical clearinghouses. That means practices attempting medical billing end up doing it manually — spreadsheets, paper forms, fax machines — which is exactly as painful as it sounds.

4. The documentation requirements feel overwhelming.

Medical insurance requires more clinical documentation than dental insurance. Letters of medical necessity, detailed clinical notes, prior authorization packages — it's a significant increase in administrative work compared to dental claims.

5. The prior authorization process is a black box.

For many procedures, medical insurance requires prior authorization before you can submit a claim. The prior auth process varies by carrier, requires carrier-specific forms, and can take days or weeks to resolve. For practices without a defined workflow, this alone is enough to make medical billing feel not worth the effort.

6. The first denial feels like the final answer.

Many practices try medical billing once, get a denial, and conclude that it doesn't work. But denial rates in medical billing — even for legitimate, well-documented claims — can run 20 to 50 percent. Denials are not the end of the process. They're part of the process. Practices that understand this and build in a denial management workflow collect far more than those that don't.

What It Actually Takes to Get Started

Despite the barriers, the practices that successfully add medical billing to their workflow consistently say the same thing: it's harder to start than it is to maintain.

Here's what the getting-started process actually looks like:

Get your NPI if you don't have one. Every provider who bills medical insurance needs a National Provider Identifier. If you don't have one, apply at nppes.cms.hhs.gov. It's free and takes about a week.

Identify your best starting procedures. Don't try to do everything at once. Look at your procedure mix and identify the two or three procedure types most likely to qualify for medical billing. For most practices doing sleep apnea, TMJ, or trauma work, those are the natural starting points. Night guards are another accessible entry point.

Get credentialed with the major carriers in your area. Medical billing requires provider credentialing with each carrier. Find out which medical insurance plans your existing patients have — in most rural and suburban markets it's one or two dominant carriers — and credential with those first.

Build your documentation workflow. Before you submit a single claim, get your clinical documentation process in order. Medical insurance requires more detailed notes than dental insurance. Your notes need to clearly establish the diagnosis, document the clinical findings that support it, and justify the treatment as medically necessary. If you're currently dictating notes or using a scribe, this is a natural extension of that workflow.

Learn the basics of prior authorization. For procedures that require prior auth, build a simple checklist of what each major carrier needs. Most prior auth requests require the same core information — provider details, patient information, the procedure being requested, the supporting diagnosis, and relevant clinical documentation. Once you've done it a few times it becomes routine.

Submit your first claim and learn from it. Your first medical claim will not be perfect. That's fine. Submit it, track it, and learn from whatever happens — whether it gets paid, denied, or sent back for additional information. Each claim teaches you something.

The Workflow That Scales

The practices that do medical billing successfully aren't the ones with the most coding knowledge. They're the ones with the most consistent workflow.

That workflow looks like this at a high level: every eligible visit gets documented thoroughly, codes get assigned and reviewed before the claim is generated, prior auth gets requested proactively when required, claims get submitted electronically rather than on paper, and denials get followed up on systematically rather than written off.

None of those steps are complicated in isolation. The challenge is doing all of them consistently, for every eligible patient, without a dedicated medical billing staff member who knows what they're doing.

That's the problem Coral was built to solve. Instead of managing this workflow manually across multiple disconnected tools, Coral handles it in one place — from the visit recording to the clinical note to the codes to the claim submission. The only thing that changes in your practice is you press record before the visit.

The Bottom Line

Most dental practices don't bill medical insurance because the startup friction is real. But the friction is a one-time cost. Once the workflow is established, medical billing becomes a consistent source of revenue that runs alongside your existing dental billing without requiring a fundamental change to how you practice.

The practices that get over the initial hump tend to wonder why they waited so long.

If you want to see what a streamlined medical billing workflow looks like for your specific practice, we'd love to show you. Book a demo at coral.dental.