Balloon sinuplasty, maxillary cost in Los Angeles, CA
In Los Angeles-Long Beach-Anaheim, CA, 21 hospitals list a cash price for balloon dilation of the maxillary sinus opening, one side: from $936.62 to $9,234.25, with a median of $3,099.20. The lowest listed price is at Cedars-Sinai Medical Center — $2,162.58 less than the median here. Across California, the median is $5,613.02 at 58 hospitals.
Cash prices at 21 facilities across 18 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 Nov 26, 2025 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 Los Angeles-Long Beach-Anaheim, CA.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Cedars-Sinai Medical Center lowest Los Angeles, CA · (310) 423-5000 Outpatient Surgical Group 1 | $936.62 | $1,440.95 | $9,088.30–$13,492.72 | 35% | Nov 26, 2025 source file |
| Cedars-Sinai Marina Hospital Marina del Rey, CA · (310) 823-8911 OPG - 4 | $991.47 | $1,525.34 | $4,443.39–$12,404.59 | 35% | Nov 26, 2025 source file |
| Cedars-Sinai Marina Hospital Marina del Rey, CA · (310) 823-8911 Outpatient Surgical Services | $1,807.31 | $2,780.47 | $4,443.39–$12,404.59 | 35% | Nov 26, 2025 source file |
| Cedars-Sinai Marina Hospital Marina del Rey, CA · (310) 823-8911 Ambulatory Surgery û Cigna Grouper Schedule* Grouper 9 | $1,807.31 | $2,780.47 | $4,443.39–$12,404.59 | 35% | Nov 26, 2025 source file |
| Providence Holy Cross Medical Center Mission Hills, CA · (818) 365-8051 HC ED SINUS ENDO W/BALLOON DILATION CDM | $2,717.75 | $7,765.00 | — | 65% | Apr 1, 2026 source file |
| Providence Saint Joseph Medical Center Burbank, CA · (818) 843-5111 HC ED SINUS ENDO W/BALLOON DILATION CDM | $2,717.75 | $7,765.00 | — | 65% | Apr 1, 2026 source file |
| Providence Cedars Sinai Tarzana Medical Center Tarzana, CA · (818) 881-0800 HC ED SINUS ENDO W/BALLOON DILATION CDM | $2,717.75 | $7,765.00 | — | 65% | Apr 1, 2026 source file |
| Kaiser Foundation Hospital - Woodland Hills Woodland Hills, CA · (818) 719-3800 NASAL/SINUS NDSC SURG W/DILATION MAXILLARY SINUS | $3,099.20 | $5,960.00 | $6,867.00–$20,425.00 | 48% | — source file |
| Kaiser Foundation Hospital - Panorama City Panorama City, CA · (818) 375-2000 NASAL/SINUS NDSC SURG W/DILATION MAXILLARY SINUS | $3,099.20 | $5,960.00 | $6,867.00–$20,425.00 | 48% | — source file |
| Kaiser Foundation Hospital - Orange County - Irvine Irvine, CA NASAL/SINUS NDSC SURG W/DILATION MAXILLARY SINUS | $3,099.20 | $5,960.00 | $6,867.00–$20,425.00 | 48% | — source file |
| Kaiser Foundation Hospital - Los Angeles Los Angeles, CA · (323) 783-4011 NASAL/SINUS NDSC SURG W/DILATION MAXILLARY SINUS | $3,099.20 | $5,960.00 | $6,867.00–$20,425.00 | 48% | — source file |
| Kaiser Foundation Hospital - West la Los Angeles, CA · (213) 857-2201 NASAL/SINUS NDSC SURG W/DILATION MAXILLARY SINUS | $3,099.20 | $5,960.00 | $6,867.00–$20,425.00 | 48% | — source file |
| Kaiser Foundation Hospital - Baldwin Park Baldwin Park, CA · (626) 851-1011 NASAL/SINUS NDSC SURG W/DILATION MAXILLARY SINUS | $3,099.20 | $5,960.00 | $6,867.00–$20,425.00 | 48% | — source file |
| Kaiser Foundation Hospital - South Bay Harbor City, CA · (310) 325-5111 NASAL/SINUS NDSC SURG W/DILATION MAXILLARY SINUS | $3,099.20 | $5,960.00 | $6,867.00–$20,425.00 | 48% | — source file |
| Kaiser Foundation Hospital - Orange County - Anaheim Anaheim, CA · (714) 279-4000 NASAL/SINUS NDSC SURG W/DILATION MAXILLARY SINUS | $3,099.20 | $5,960.00 | $6,867.00–$20,425.00 | 48% | — source file |
| Kaiser Foundation Hospital - Downey Downey, CA · (562) 461-6007 NASAL/SINUS NDSC SURG W/DILATION MAXILLARY SINUS | $3,099.20 | $5,960.00 | $6,867.00–$20,425.00 | 48% | — source file |
| Mission Hospital Regional Med Center Mission Viejo, CA · (949) 364-1400 HC ED SINUS ENDO W/BALLOON DILATION CDM | $3,783.36 | $7,882.00 | — | 52% | Apr 1, 2026 source file |
| Saint John's Health Center Santa Monica, CA · (310) 829-5511 HC ED SINUS ENDO W/BALLOON DILATION CDM | $3,918.95 | $11,197.00 | — | 65% | Apr 1, 2026 source file |
| Cedars-Sinai Medical Center Los Angeles, CA · (310) 423-5000 Outpatient Grouper - 4 | $3,964.84 | $6,099.75 | $9,088.30–$21,397.98 | 35% | Nov 26, 2025 source file |
| St Jude Hospital Fullerton, CA · (714) 992-3000 HC ED SINUS ENDO W/BALLOON DILATION CDM | $3,982.56 | $8,297.00 | — | 52% | Apr 1, 2026 source file |
| Providence Little Company of Mary Medical Center Torrance Torrance, CA · (310) 540-7676 HC ED SINUS ENDO W/BALLOON DILATION CDM | $3,986.50 | $11,390.00 | — | 65% | Apr 1, 2026 source file |
| Providence Little Co of Mary Medical Center San Pedro San Pedro, CA · (310) 832-3311 HC ED SINUS ENDO W/BALLOON DILATION CDM | $3,986.50 | $11,390.00 | — | 65% | Apr 1, 2026 source file |
| St Joseph Hospital of Orange Orange, CA · (714) 633-9111 HC ED SINUS ENDO W/BALLOON DILATION CDM | $4,066.56 | $8,472.00 | — | 52% | Apr 1, 2026 source file |
| Keck Hospital of USC Los Angeles, CA · (323) 442-8656 Nasal/Sinus Ndsc Surg W/Dilation Maxillary Sinus | $9,234.25 | $9,234.25 | — | — | Apr 1, 2026 source file |
Outpatient: lowest $936.62, median $3,099.20, highest $9,234.25 — a 9.9× difference within the same market.
As an inpatient, the same code is billed by 19 facilities here, median $3,099.20. 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 11 of 11 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at 11 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.