Sinus surgery, maxillary cost in Minneapolis, MN
In Minneapolis-St. Paul-Bloomington, MN-WI, 5 hospitals list a cash price for endoscopic sinus surgery: opening the maxillary (cheek) sinus: from $430.27 to $6,415.00, with a median of $1,470.07. The lowest listed price is at Westfields Hospital — $1,039.80 less than the median here. Across Minnesota, the median is $1,395.08 at 6 hospitals.
Cash prices at 5 facilities across 4 cities for code 31256, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 23, 2026; the hospital files themselves were last updated between Feb 6, 2026 and May 18, 2026.
Where each hospital's price falls
Each dot is one hospital's cash price on a scale from the lowest to the highest in Minneapolis-St. Paul-Bloomington, MN-WI.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Westfields Hospital lowest New Richmond, WI · (715) 246-2101 Exploration Maxillary Si | $430.27 | $818.00 | $195.98–$9,420.71 | 47% | — source file |
| Childrens Health Care Minneapolis, MN · (612) 813-6112 31256 Nasal/Sinus Endoscopy W? Maxillary Antrostomy | $731.00 | $731.00 | $119.59–$731.00 | — | May 7, 2026 source file |
| Fairview Maple Grove Surgery Center Maple Grove, MN HC NASAL SCOPY,OPEN MAXILL SINUS | $1,470.07 | $3,666.00 | $765.00–$4,449.14 | 60% | May 18, 2026 source file |
| Methodist Hospital St. Louis Park, MN Nasl/Sinus Endo Surg W/Max Antrost; | $2,820.48 | $10,848.00 | $760.90–$8,136.00 | 74% | — source file |
| M Health Fairview University of Mn Medical Center Minneapolis, MN · (612) 624-1765 HC NASAL SCOPY,OPEN MAXILL SINUS | $6,415.00 | $15,997.50 | $426.42–$14,397.75 | 60% | Feb 6, 2026 source file |
| M Health Fairview University of Mn Medical Center Minneapolis, MN · (612) 624-1765 Outpatient Services | $6,415.00 | $15,997.50 | $426.42–$14,397.75 | 60% | Feb 6, 2026 source file |
Outpatient: lowest $430.27, median $1,470.07, highest $6,415.00 — a 14.9× difference within the same market.
As an inpatient, the same code is billed by 4 facilities here, median $2,145.28. Inpatient and outpatient prices are not comparable and are kept on separate pages: the inpatient charge covers admission, not the same purchase.
Cash or insurance?
At 4 of 5 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at none is it below every plan's rate. If you have insurance but have not met your deductible, you usually pay your plan's negotiated rate, which falls somewhere in the "Insurers pay" column. Paying cash can cost less, but a cash payment usually does not count toward your deductible. Ask the hospital for both numbers before you book.
What it is
This code covers endoscopic surgery through the nose to widen the natural opening of the maxillary sinus behind the cheek.
What the price covers
The hospital price usually covers the operating room, recovery and supplies. The surgeon and anesthesia usually bill separately.
3 rows held back from this comparison
They are priced below $1 or below a tenth of the national median for code 31256 ($2,527.00). Such a line is almost always a physician's fee billed separately, an assistant's share or a placeholder — a real charge, but not the price of the procedure itself.
| M Health Fairview Southdale Hospital Edina, MNAS NASAL SCOPY,OPEN MAXILL SINUS | $29.79 | file |
| HealthEast St John's Hospital Maplewood, MNAS NASAL SCOPY,OPEN MAXILL SINUS | $65.94 | file |
| Regions Hospital St. Paul, MNExploration Maxillary Si | $250.38 | file |