A fee schedule in healthcare is a complete list of medical services paired with the maximum amount a payer will reimburse for each one. Every time you visit a doctor, get lab work, or receive physical therapy, the price your insurance pays isn’t random. It’s pulled from a pre-set table that assigns a dollar amount to every procedure, office visit, and test, each identified by a standardized billing code. Fee schedules are the backbone of how healthcare gets priced and paid for in the United States.
How a Fee Schedule Works
Every medical service has a billing code, most commonly a CPT (Current Procedural Terminology) or HCPCS code. A routine office visit has one code, an MRI of the knee has another, a blood glucose test has another. A fee schedule maps each of these codes to a specific dollar amount. When your doctor submits a claim, the insurance company looks up the code, checks the fee schedule, and pays accordingly.
The amount listed on a fee schedule is called the “allowed amount.” This is the maximum the payer will cover for that service. Your doctor may bill $300 for an office visit, but if the fee schedule sets the allowed amount at $180, that $180 is the starting point for calculating what insurance pays and what you owe. Your coinsurance, copay, and deductible are all calculated from the allowed amount, not from the doctor’s full charge.
The Medicare Fee Schedule
Medicare’s Physician Fee Schedule is the most influential pricing benchmark in U.S. healthcare. It covers payments to doctors, ambulance services, clinical labs, and durable medical equipment suppliers. Rather than assigning arbitrary prices, Medicare uses a formula built on three components called relative value units (RVUs): one for the physician’s work (time, skill, and complexity), one for practice expenses (staff, rent, equipment), and one for malpractice insurance costs.
Those three RVU components are added together and multiplied by a single national conversion factor to produce a dollar amount. For 2025, that conversion factor is $32.35, down about 2.8% from $33.29 in 2024. So if a procedure has a total RVU of 3.0, the base Medicare payment would be roughly $97.05 before geographic adjustments.
Why Location Changes the Price
Practicing medicine in Manhattan costs more than practicing in rural Kansas, and Medicare accounts for that. Before finalizing payment, each of the three RVU components is adjusted by a Geographic Practice Cost Index (GPCI). The work GPCI reflects regional differences in physician labor costs. The practice expense GPCI captures variation in staff wages, rent, and overhead. The malpractice GPCI reflects local insurance premiums across 25 physician specialties.
These indexes are updated every three years, and by law, the adjustments must be budget neutral. That means if payments go up in high-cost areas, they must come down somewhere else. Supplies and equipment, however, aren’t adjusted geographically because they’re typically purchased on a national market at roughly uniform prices. The result is that the same procedure can pay noticeably different amounts depending on your zip code.
How Private Insurance Fee Schedules Differ
Private insurers like Aetna, Blue Cross, and UnitedHealthcare each negotiate their own fee schedules with providers. These contracts set the allowed amount for every billing code, and the rates vary widely from one insurer to the next and from one provider to the next. Many providers accept a standard contract from an insurer that comes with a fixed fee schedule, often based on a percentage of Medicare rates.
In practice, these fixed-fee contracts are frequently lower than Medicare and may be tied to Medicare payment levels that are three or more years old. Providers who want better rates can negotiate, but the process is slow. A typical renegotiation takes six to twelve months. Providers usually start by identifying the billing codes that generate about 75% of their revenue, comparing what the insurer pays for each code against current Medicare rates, and using any codes that fall below Medicare as leverage for an increase.
For patients, the key takeaway is that your insurance company’s fee schedule determines what counts as a covered charge. If your plan’s allowed amount for a service is $200 and you have 20% coinsurance, you owe $40. The fee schedule is doing the work behind the scenes to set that number.
Medicaid Pays Less Than Medicare
Medicaid operates its own fee schedules, and they’re significantly lower. On a national average, Medicaid pays about 68% of what Medicare pays for primary care services, a gap of roughly 32%. This is one reason many providers limit how many Medicaid patients they accept, and why Medicaid patients sometimes face longer wait times or fewer choices for specialists. Each state sets its own Medicaid fee schedule, so the gap varies. Some states pay close to Medicare rates; others fall well below.
Out-of-Network and UCR Rates
When you see a provider who isn’t in your insurance network, there’s no negotiated fee schedule in place. Instead, insurers often rely on what’s called the usual, customary, and reasonable (UCR) rate. This is the typical amount providers in your geographic area charge for the same or a similar service. The UCR rate becomes the allowed amount your plan will consider covering.
The problem is that out-of-network providers aren’t bound by any fee schedule. They can bill whatever they choose, and if their charge exceeds the UCR rate your insurer recognizes, you’re responsible for the difference. This is the mechanism behind surprise medical bills: the gap between what a provider charges and what your insurer considers reasonable for that service in your area.
What This Means for Your Medical Bills
Understanding fee schedules helps you make sense of the confusing math on an explanation of benefits (EOB) statement. The “billed amount” is what your provider charges. The “allowed amount” is what the fee schedule says the service is worth. If your provider is in-network, they’ve agreed to accept the allowed amount as full payment. The difference between the billed charge and the allowed amount gets written off, and your cost share (copay, coinsurance, or deductible) is calculated from the lower allowed amount.
You can look up Medicare’s fee schedule yourself using the CMS Physician Fee Schedule lookup tool. It lets you search by procedure code and location to see exactly what Medicare pays for a given service in your area. While your private insurance rates will differ, Medicare rates serve as a useful baseline. If your insurer is paying below Medicare for a service, that’s unusually low. If they’re paying 150% of Medicare, that’s a relatively strong rate. Many hospitals and providers describe their pricing in terms of a percentage of Medicare, making it a common reference point across the industry.