Why Can the Same Procedure Have Different Payment Amounts in Different Locations?
Learn why the same procedure can pay differently by locality, due to Medicare GPCIs, facility status, and regional practice cost differences.
Two physicians perform the identical procedure on the same Tuesday. One works in Miami, one in Fargo. Their Medicare checks differ, sometimes noticeably. That is not an error, and it is not favoritism. Geographic payment variation is engineered directly into the physician fee schedule through Medicare localities and their cost indices. Add facility status to the mix and the spread widens further. Understanding these mechanics matters enormously when you evaluate job offers, plan expansions or model revenue for a new site. Here is exactly where the differences come from and how to measure them.
How Medicare Localities Affect Physician Fee Schedule Payments
Medicare divides the country into payment localities, each carrying its own index set. Some states form a single locality; others split into several.
Your locality, not your ZIP code alone, determines adjustments. Confirm it before trusting any Medicare locality payment estimate you produce.
Why Geographic Practice Costs Are Not Identical Everywhere
Running a clinic in Manhattan costs a fortune compared to a small prairie town. Rent, wages and insurance all diverge sharply.
Medicare mirrors those regional practice costs through GPCIs. Ignoring them would systematically underpay expensive markets and overpay inexpensive ones.
How Work Costs Can Vary by Geographic Area
Physician wage levels differ by market, so the work GPCI shifts accordingly. Statute limits how much of that difference counts.
Consequently, work adjustments stay modest. You will rarely see dramatic swings in this particular component across localities.
How Practice Expense Differences Affect Payment
Practice expense drives the widest routine variation. Commercial rent and staff wages differ enormously between metro and rural areas.
| Cost Driver | Impact |
|---|---|
| Office rent | Large |
| Staff wages | Large |
| Utilities | Moderate |
| Supplies | Small |
How Malpractice Costs Influence Geographic Adjustments
Liability premiums vary more sharply than anything else. Certain states carry indices several times higher than others.
Because malpractice expense by location represents a small component, the dollar effect stays limited. High-risk specialties still notice it clearly.
How GPCIs Are Applied to the Same Procedure
The same code enters identical RVU values everywhere. Only the multipliers change from place to place.
Apply work GPCI adjustment, PE GPCI adjustment and MP GPCI adjustment, then sum. Different localities, different totals, identical clinical work.
Why Facility Status Can Also Change the Payment Calculation
Setting shifts the practice expense value before geography ever applies. Hospital work uses facility values; office work uses non-facility values.
So facility locality payment and non-facility locality payment can differ substantially within the same city block.
How to Compare Payment Amounts Across Medicare Localities
Run the formula twice with different index sets and compare outputs. Keep the code, RVUs and conversion factor constant.
That controlled comparison isolates geography cleanly. It also produces the honest numbers you need for relocation or expansion decisions.
Conclusion: Understanding Geographic Payment Differences
Same procedure, different payment, perfectly logical explanation. Localities carry different costs, so Medicare applies different multipliers.
Once you can reproduce those numbers yourself, Medicare payment comparison becomes a practical planning tool rather than a source of frustration.