Sinus Surgery Cost in Montana (2026): Average Prices & What You'll Pay

What does a sinus surgery cost in Montana?

The same sinus surgery in Montana might cost you $788 at one facility and $3,723 at another - the building you walk into drives the difference. The median cash price across 16 reporting hospitals is $872. These figures come straight from hospital price transparency files published under federal law.

Once you have a bill or an appointment on the calendar, CostKits can help you keep it all organized.

Where sinus surgery costs vary in Montana

Pins show hospitals with price-transparency data (colored by vs. state average) and nearby ambulatory surgery centers and other facilities (colored by type). Click any pin for facility name and estimated cost range.

26+ people checked prices near them this month.

CommonSpirit Health (formerly SCL Health) and RiverStone Health cover most of Montana's population. The state's vast geography means most residents have little or no practical alternative to their nearest facility, effectively eliminating competitive pricing pressure outside Billings and Missoula. Critical access hospitals are widespread and use cost-based reimbursement for Medicare.

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Why prices vary - and what it means for your coverage

A small number of hospitals (1) report prices above $8,257, including Providence St Joseph Medical Center at $10,877, which drives most of the overall spread - excluding them, most facilities cluster in a much tighter band. Setting matters too: the median outpatient price is $872 versus $794 inpatient, so where a procedure happens often matters more than which hospital you pick. Setting drives most of the spread here: an ambulatory surgical center (ASC) is usually meaningfully cheaper than a hospital operating room for the same procedure, when your case qualifies.

On top of the facility price, your actual bill depends on your deductible, your out-of-pocket maximum, and whether every provider involved - not just the facility - is in-network.

Frequently asked questions: sinus surgery costs in Montana

How much does a sinus surgery cost in Montana?

The typical insurer-negotiated rate is $860, with most facilities between $362 and $3,723 (based on 16 hospitals reporting negotiated rates). Posted cash prices start at $766, with a median of $872; outlier facilities are left out. What you pay depends on the facility, your insurance, and whether you have met your deductible.

Where is the cheapest place to get a sinus surgery in Montana?

Based on declared prices, the lowest posted price in our Montana data is HOLY ROSARY HEALTHCARE DBA INTERMOUNTAIN HEALTH HOLY ROSARY HOSPITAL at about $766. Freestanding ambulatory surgery centers are often cheaper still and may not appear in hospital price data - ask your doctor whether one is an option.

Why is a sinus surgery so much cheaper at some Montana hospitals?

Typical prices vary about 10.3× (25th to 70th percentile of negotiated rates) because each hospital sets its own list price, cash discount, and insurer-negotiated rates. In Montana, the median cash (self-pay) price is $872 versus a median negotiated rate of $860 - about 1× higher. Asking for the cash price as well as your insurer's negotiated rate is often the single biggest lever on what you pay.

How much will I actually pay out of pocket for a sinus surgery in Montana?

Your out-of-pocket cost depends on your deductible, coinsurance, out-of-pocket maximum, and whether the facility is in-network - not just the sticker price. If you have not met your deductible, you will typically pay the negotiated rate in full until you do. Use the CostKits cost forecaster to estimate your specific out-of-pocket amount before you go.

CostKits compiles hospital price transparency data to help families make informed decisions. Track and manage your healthcare costs (free account).