Sinus surgery, maxillary cost in California
In California, 46 hospitals publish a cash price for endoscopic sinus surgery: opening the maxillary (cheek) sinus: from $510.52 to $50,795.70, with a median of $6,658.40. The lowest price is at NorthBay Medical Center (Fairfield). The highest price is 99.5× the lowest.
Outpatient cash prices, one line per hospital — its lowest listed price for code 31256. Prices for both sides of the body and inpatient prices are not mixed in. Collected Sep 23, 2026.
Lowest$510.52NorthBay Medical Center
Median$6,658.40half pay less
Highest$50,795.70in California
Lowest saves$6,147.88vs the median
Hospitals in California, cheapest first
| Hospital | Cash price | List price | File date |
|---|---|---|---|
| NorthBay Medical Center lowest Fairfield · Vallejo, CA Nasal Endo W Maxill Antrostomy | $510.52 | $510.52 | Apr 1, 2026 source file |
| Tahoe Forest Hospital Truckee · Truckee-Grass Valley, CA Incision of nasal sinus using an endoscope | $868.00 | $868.00 | Jul 6, 2026 source file |
| Cedars-Sinai Marina Hospital Marina del Rey · Los Angeles-Long Beach-Anaheim, CA Ambulatory Surgery û Cigna Grouper Schedule* Grouper 3 | $1,550.64 | $2,385.60 | Nov 26, 2025 source file |
| Kaiser Foundation Hospital - Baldwin Park Baldwin Park · Los Angeles-Long Beach-Anaheim, CA NASAL/SINUS ENDOSCOPY W/MAXILLARY ANTROSTOMY | $1,695.20 | $3,260.00 | — source file |
| Kaiser Foundation Hospital - Downey Downey · Los Angeles-Long Beach-Anaheim, CA NASAL/SINUS ENDOSCOPY W/MAXILLARY ANTROSTOMY | $1,695.20 | $3,260.00 | — source file |
| Kaiser Foundation Hospital - Fontana Fontana · Riverside-San Bernardino-Ontario, CA NASAL/SINUS ENDOSCOPY W/MAXILLARY ANTROSTOMY | $1,695.20 | $3,260.00 | — source file |
| Kaiser Foundation Hospital - Los Angeles Los Angeles · Los Angeles-Long Beach-Anaheim, CA NASAL/SINUS ENDOSCOPY W/MAXILLARY ANTROSTOMY | $1,695.20 | $3,260.00 | — source file |
| Kaiser Foundation Hospital - Moreno Valley Moreno Valley · Riverside-San Bernardino-Ontario, CA NASAL/SINUS ENDOSCOPY W/MAXILLARY ANTROSTOMY | $1,695.20 | $3,260.00 | — source file |
| Kaiser Foundation Hospital - Ontario Ontario · Ontario, CA NASAL/SINUS ENDOSCOPY W/MAXILLARY ANTROSTOMY | $1,695.20 | $3,260.00 | — source file |
| Kaiser Foundation Hospital - Orange County - Anaheim Anaheim · Los Angeles-Long Beach-Anaheim, CA NASAL/SINUS ENDOSCOPY W/MAXILLARY ANTROSTOMY | $1,695.20 | $3,260.00 | — source file |
| Kaiser Foundation Hospital - Orange County - Irvine Irvine · Los Angeles-Long Beach-Anaheim, CA NASAL/SINUS ENDOSCOPY W/MAXILLARY ANTROSTOMY | $1,695.20 | $3,260.00 | — source file |
| Kaiser Foundation Hospital - Panorama City Panorama City · Los Angeles-Long Beach-Anaheim, CA NASAL/SINUS ENDOSCOPY W/MAXILLARY ANTROSTOMY | $1,695.20 | $3,260.00 | — source file |
| Kaiser Foundation Hospital - Riverside Riverside · Riverside-San Bernardino-Ontario, CA NASAL/SINUS ENDOSCOPY W/MAXILLARY ANTROSTOMY | $1,695.20 | $3,260.00 | — source file |
| Kaiser Foundation Hospital - San Diego - Clairemont Mesa San Diego · San Diego-Chula Vista-Carlsbad, CA NASAL/SINUS ENDOSCOPY W/MAXILLARY ANTROSTOMY | $1,695.20 | $3,260.00 | — source file |
| Kaiser Foundation Hospital - San Diego - Zion San Diego · San Diego-Chula Vista-Carlsbad, CA NASAL/SINUS ENDOSCOPY W/MAXILLARY ANTROSTOMY | $1,695.20 | $3,260.00 | — source file |
| Kaiser Foundation Hospital - San Marcos San Marcos · San Diego-Chula Vista-Carlsbad, CA NASAL/SINUS ENDOSCOPY W/MAXILLARY ANTROSTOMY | $1,695.20 | $3,260.00 | — source file |
| Kaiser Foundation Hospital - South Bay Harbor City · Los Angeles-Long Beach-Anaheim, CA NASAL/SINUS ENDOSCOPY W/MAXILLARY ANTROSTOMY | $1,695.20 | $3,260.00 | — source file |
| Kaiser Foundation Hospital - West la Los Angeles · Los Angeles-Long Beach-Anaheim, CA NASAL/SINUS ENDOSCOPY W/MAXILLARY ANTROSTOMY | $1,695.20 | $3,260.00 | — source file |
| Kaiser Foundation Hospital - Woodland Hills Woodland Hills · Los Angeles-Long Beach-Anaheim, CA NASAL/SINUS ENDOSCOPY W/MAXILLARY ANTROSTOMY | $1,695.20 | $3,260.00 | — source file |
| Cedars-Sinai Medical Center Los Angeles · Los Angeles-Long Beach-Anaheim, CA Outpatient Surgical Group 3 | $3,964.84 | $6,099.75 | Nov 26, 2025 source file |
| Shasta Regional Medical Center Redding · Redding, CA EXPLORATION MAXILLARY SINUS - 31256 - | $4,771.00 | $6,769.40 | Sep 1, 2026 source file |
| Kaiser Foundation Hospital & Rehab Center - Vallejo Vallejo · Vallejo, CA NASAL/SINUS ENDOSCOPY W/MAXILLARY ANTROSTOMY | $6,658.40 | $11,890.00 | — source file |
| Kaiser Foundation Hospital - Antioch Antioch · San Francisco-Oakland-Fremont, CA NASAL/SINUS ENDOSCOPY W/MAXILLARY ANTROSTOMY | $6,658.40 | $11,890.00 | — source file |
| Kaiser Foundation Hospital - Fremont Fremont · San Francisco-Oakland-Fremont, CA NASAL/SINUS ENDOSCOPY W/MAXILLARY ANTROSTOMY | $6,658.40 | $11,890.00 | — source file |
| Kaiser Foundation Hospital - Fresno Fresno · Fresno, CA NASAL/SINUS ENDOSCOPY W/MAXILLARY ANTROSTOMY | $6,658.40 | $11,890.00 | — source file |
| Kaiser Foundation Hospital - Manteca Manteca · Stockton-Lodi, CA NASAL/SINUS ENDOSCOPY W/MAXILLARY ANTROSTOMY | $6,658.40 | $11,890.00 | — source file |
| Kaiser Foundation Hospital - Modesto Modesto · Modesto, CA NASAL/SINUS ENDOSCOPY W/MAXILLARY ANTROSTOMY | $6,658.40 | $11,890.00 | — source file |
| Kaiser Foundation Hospital - Oakland/Richmond Oakland · San Francisco-Oakland-Fremont, CA NASAL/SINUS ENDOSCOPY W/MAXILLARY ANTROSTOMY | $6,658.40 | $11,890.00 | — source file |
| Kaiser Foundation Hospital - Redwood City Redwood City · San Francisco-Oakland-Fremont, CA NASAL/SINUS ENDOSCOPY W/MAXILLARY ANTROSTOMY | $6,658.40 | $11,890.00 | — source file |
| Kaiser Foundation Hospital - Richmond Campus Richmond · Richmond, CA NASAL/SINUS ENDOSCOPY W/MAXILLARY ANTROSTOMY | $6,658.40 | $11,890.00 | — source file |
| Kaiser Foundation Hospital - Roseville Roseville · Sacramento-Roseville-Folsom, CA NASAL/SINUS ENDOSCOPY W/MAXILLARY ANTROSTOMY | $6,658.40 | $11,890.00 | — source file |
| Kaiser Foundation Hospital - Sacramento Sacramento · Sacramento-Roseville-Folsom, CA NASAL/SINUS ENDOSCOPY W/MAXILLARY ANTROSTOMY | $6,658.40 | $11,890.00 | — source file |
| Kaiser Foundation Hospital - San Francisco San Francisco · San Francisco-Oakland-Fremont, CA NASAL/SINUS ENDOSCOPY W/MAXILLARY ANTROSTOMY | $6,658.40 | $11,890.00 | — source file |
| Kaiser Foundation Hospital - San Jose San Jose · San Jose-Sunnyvale-Santa Clara, CA NASAL/SINUS ENDOSCOPY W/MAXILLARY ANTROSTOMY | $6,658.40 | $11,890.00 | — source file |
| Kaiser Foundation Hospital - San Leandro San Leandro · San Francisco-Oakland-Fremont, CA NASAL/SINUS ENDOSCOPY W/MAXILLARY ANTROSTOMY | $6,658.40 | $11,890.00 | — source file |
| Kaiser Foundation Hospital - San Rafael San Rafael · San Francisco-Oakland-Fremont, CA NASAL/SINUS ENDOSCOPY W/MAXILLARY ANTROSTOMY | $6,658.40 | $11,890.00 | — source file |
| Kaiser Foundation Hospital - Santa Clara Santa Clara · San Jose-Sunnyvale-Santa Clara, CA NASAL/SINUS ENDOSCOPY W/MAXILLARY ANTROSTOMY | $6,658.40 | $11,890.00 | — source file |
| Kaiser Foundation Hospital - Santa Rosa Santa Rosa · Santa Rosa-Petaluma, CA NASAL/SINUS ENDOSCOPY W/MAXILLARY ANTROSTOMY | $6,658.40 | $11,890.00 | — source file |
| Kaiser Foundation Hospital - South Sacramento Sacramento · Sacramento-Roseville-Folsom, CA NASAL/SINUS ENDOSCOPY W/MAXILLARY ANTROSTOMY | $6,658.40 | $11,890.00 | — source file |
| Kaiser Foundation Hospital - South San Francisco South San Francisco · San Francisco-Oakland-Fremont, CA NASAL/SINUS ENDOSCOPY W/MAXILLARY ANTROSTOMY | $6,658.40 | $11,890.00 | — source file |
| Kaiser Foundation Hospital - Vacaville Vacaville · Vallejo, CA NASAL/SINUS ENDOSCOPY W/MAXILLARY ANTROSTOMY | $6,658.40 | $11,890.00 | — source file |
| Kaiser Foundation Hospital - Walnut Creek Walnut Creek · San Francisco-Oakland-Fremont, CA NASAL/SINUS ENDOSCOPY W/MAXILLARY ANTROSTOMY | $6,658.40 | $11,890.00 | — source file |
| Stanford Health Care Tri-Valley Pleasanton · San Francisco-Oakland-Fremont, CA Exploration Maxillary Sinus | $7,254.00 | $18,135.00 | Apr 1, 2026 source file |
| Stanford Health Care Stanford · San Jose-Sunnyvale-Santa Clara, CA Exploration Maxillary Sinus | $9,182.40 | $22,956.00 | Apr 1, 2026 source file |
| Keck Hospital of USC Los Angeles · Los Angeles-Long Beach-Anaheim, CA Nasal/Sinus Endoscopy W/Maxillary Antrostomy | $16,622.50 | $16,622.50 | Apr 1, 2026 source file |
| UC San Diego Medical Center San Diego · San Diego-Chula Vista-Carlsbad, CA Incision of nasal sinus using an endoscope | $50,795.70 | $92,355.81 | Apr 1, 2026 source file |
By metro area
Each metro page compares every listing, including prices for both sides of the body.
| Metro area | Hospitals | Lowest | Median |
|---|---|---|---|
| Los Angeles-Long Beach-Anaheim, CA | 12 | $1,550.64 | $1,695.20 |
| San Francisco-Oakland-Fremont, CA | 10 | $6,658.40 | $6,658.40 |
| San Diego-Chula Vista-Carlsbad, CA | 4 | $1,695.20 | $1,695.20 |
| Riverside-San Bernardino-Ontario, CA | 3 | $1,695.20 | $1,695.20 |
| Sacramento-Roseville-Folsom, CA | 3 | $6,658.40 | $6,658.40 |
| San Jose-Sunnyvale-Santa Clara, CA | 3 | $6,658.40 | $6,658.40 |
| Vallejo, CA | 3 | $510.52 | $6,658.40 |
| Fresno, CA | 1 | $6,658.40 | $6,658.40 |
| Modesto, CA | 1 | $6,658.40 | $6,658.40 |
| Ontario, CA | 1 | $1,695.20 | $1,695.20 |
| Richmond, CA | 1 | $6,658.40 | $6,658.40 |
| Redding, CA | 1 | $4,771.00 | $4,771.00 |
| Santa Rosa-Petaluma, CA | 1 | $6,658.40 | $6,658.40 |
| Stockton-Lodi, CA | 1 | $6,658.40 | $6,658.40 |
| Truckee-Grass Valley, CA | 1 | $868.00 | $868.00 |
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.
Endoscopic sinus surgery: opening the maxillary (cheek) sinus in other states
- Alabama$12,846.93
- Alaska$2,527.00
- Arizona$4,575.22
- Arkansas$11,667.45
- Connecticut$13,555.12
- Delaware$2,025.74
- Florida$11,278.20
- Georgia$6,698.00
- Idaho$9,904.00
- Illinois$3,975.00
- Indiana$467.60
- Iowa$448.80
- Kansas$253.44
- Kentucky$467.60
- Louisiana$2,393.55
- Maine$301.60
- Massachusetts$6,839.07
- Michigan$253.20
- Minnesota$1,395.08
- Mississippi$19,734.48
- Missouri$9,042.44
- Nebraska$803.35
- Nevada$4,055.00
- New Hampshire$1,009.49
- New Jersey$9,237.12
- New York$4,362.99
- North Carolina$4,857.00
- Ohio$4,312.35
- Oklahoma$7,723.45
- Oregon$338.40
- Pennsylvania$5,979.27
- Rhode Island$2,626.39
- South Carolina$4,377.60
- South Dakota$2,529.47
- Tennessee$8,847.72
- Texas$2,991.14
- Utah$4,585.94
- Vermont$408.50
- Virginia$25,995.20
- Washington$1,410.73
- West Virginia$3,832.13
- Wisconsin$1,042.60
- Wyoming$1,327.22
Median cash price across the state's hospitals.