What Is Dental Network Leasing?
Network leasing is when a dental carrier (the lessor) grants another carrier or TPA (the lessee) access to its entire roster of contracted providers — without those providers knowing or consenting to the individual arrangement.
When a lessee accesses your contract, they can send you patients at the lessor's fee schedule — which is often lower than your standard rates. This is sometimes called a silent PPO arrangement, because the routing happens invisibly.
Dental practices lose thousands of dollars per year to undetected leasing activity. A patient you believe is out-of-network may actually be getting processed at a contracted rate you never intended to apply to that carrier — undercutting your revenue without any notification.
Two Types of Leasing Arrangements
Type 1 — Carrier-to-Carrier (Direct Leasing)
A major carrier with a large owned network licenses access directly to another carrier. The lessee typically uses the lessor's fee schedule (often lower than the lessee's own rates), and patients may not know their claims are being processed off a different carrier's contract.
Example: MetLife PDP leases its network to Aetna, Ameritas, and Guardian. When an Aetna patient visits a MetLife-contracted dentist, the claim may be adjudicated at MetLife's fee schedule — not Aetna's.
Type 2 — Umbrella / Wholesale Networks
Third-party network aggregators (DenteMax, Connection Dental/GEHA, Careington, Zelis, Dental Health Alliance) contract directly with providers, then lease that access wholesale to dozens of carriers and TPAs. One contract with an umbrella can make you in-network for 50–100+ payers simultaneously.
According to Dental Economics, the average dentist is listed in more than 26 PPO directories — most through leasing relationships they never directly negotiated. Nearly every major payer uses leasing in some form, with Delta Dental being the most notable exception (they contract directly with every dentist in their network).
Confirmed Carrier-to-Carrier Relationships (2025–2026)
These are sourced, verified leasing relationships from provider manuals, official carrier announcements, and the ADA. This is a subset — the full map is available to PayorMap Pro subscribers.
The Major Umbrella Networks
These are the wholesale network operators — they contract with providers, then lease access to hundreds of carriers and TPAs. Signing one umbrella contract can make you in-network for dozens of payers you didn't intend to include.
Why Carriers Don't Advertise This
Leasing is legal and disclosed (buried) in most provider agreements via an "affiliated carrier" clause or "network access" clause. Carriers benefit in two ways:
- Lessors receive licensing fees from lessees without building out their own network.
- Lessees get to advertise large in-network counts to brokers and employers without contracting directly with providers.
Providers are the ones left holding the bag — they get patients at fees they didn't negotiate for a carrier they didn't sign with, while the overhead of the leasing machinery is invisible to them.
The ADA's Fee Schedule Negotiation Guide explicitly recommends requesting a full list of leased partners before signing any PPO agreement. Many carriers will include this in the enrollment booklet on request — but you often have to ask directly. Some are also available on payer portals.
What You Should Do
Full Carrier-to-Carrier Leasing Map
The complete map covers 20+ sourced carrier-to-carrier relationships with confidence scores, effective dates, terminated agreements, opt-out links, state-specific exceptions, and the stack ranking logic carriers use to pick which fee schedule applies.
| Lessor | Lessee | Confidence | Effective | Status | Opt-Out |
|---|---|---|---|---|---|
| MetLife PDP | Ameritas | CONFIRMED | Ongoing | Active | Link → |
| Cigna | Ameritas | CONFIRMED | 11/1/2025 | Active | Link → |
| MetLife PDP | Sun Life | CONFIRMED | 10/18/2025 | Active | Link → |
| Guardian | Principal | CONFIRMED | 12/1/2025 | Active | Link → |
| Aetna | Careington | CONFIRMED | — | Ended 9/1/25 | N/A |
Full Leasing Map — PayorMap Pro
The complete carrier-to-carrier network map: 20+ sourced relationships, confidence scores, opt-out links, 2025 change log, state-specific exceptions, and the stack ranking logic that determines which fee schedule wins.
The Bottom Line
Network leasing is a feature of the dental insurance system, not a bug — for carriers. For providers, it's an invisible drag on revenue that compounds over thousands of claims per year.
The carriers that do it have no incentive to be transparent about it. The carriers that don't do it (Delta Dental) market that fact aggressively because it's a genuine differentiator.
Your best defense is a complete picture of your participation footprint — which direct contracts you have, which umbrella networks you're part of, and which carriers are currently accessing your fees through a leased arrangement. That's exactly what PayorMap Pro is built to give you.