Balloon sinuplasty, maxillary cost in Vallejo, CA
In Vallejo, CA, 3 hospitals list a cash price for balloon dilation of the maxillary sinus opening, one side: from $5,530.84 to $5,695.20, with a median of $5,695.20. The lowest listed price is at NorthBay Medical Center — $164.36 less than the median here. Across California, the median is $5,613.02 at 58 hospitals.
Cash prices at 3 facilities across 3 cities for code 31295, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 23, 2026; the hospital files themselves were last updated between Apr 1, 2026 and Apr 1, 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 Vallejo, CA.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| NorthBay Medical Center lowest Fairfield, CA · (707) 646-5000 Nsl/Sins Ndsc Surg Max Sins | $5,530.84 | $5,530.84 | — | — | Apr 1, 2026 source file |
| NorthBay Medical Center lowest Fairfield, CA · (707) 646-5000 Nsl/Sins Ndsc Surg Max Sins | $5,530.84 | $5,530.84 | — | — | Apr 1, 2026 source file |
| Kaiser Foundation Hospital & Rehab Center - Vallejo Vallejo, CA · (707) 651-1000 NASAL/SINUS NDSC SURG W/DILATION MAXILLARY SINUS | $5,695.20 | $10,170.00 | $8,365.00–$26,195.00 | 44% | — source file |
| Kaiser Foundation Hospital - Vacaville Vacaville, CA · (707) 624-4000 NASAL/SINUS NDSC SURG W/DILATION MAXILLARY SINUS | $5,695.20 | $10,170.00 | $8,365.00–$26,195.00 | 44% | — source file |
Outpatient: lowest $5,530.84, median $5,695.20, highest $5,695.20.
As an inpatient, the same code is billed by 3 facilities here, median $5,695.20. 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 2 of 2 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at 2 it is 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
In this endoscopic procedure a small balloon is passed through the nose and inflated to widen the natural opening of the maxillary (cheek) sinus. It is used for chronic or repeated sinusitis that does not improve with medicine.
What the price covers
The listed price usually covers the procedure for one side; the balloon device may be listed as a separate supply. The surgeon and any anesthesia are billed separately.