Emergency room visit, level 4 at Corona Regional Medical Center
CPT 99284 · Corona, CA
These are Corona Regional Medical Center's own posted figures from its standard-charges file dated September 1, 2026. They are not a quote. Source: the hospital's file · its price transparency page.
Across 79 California hospitals we index that post a cash price for this service: lowest $534.00, median $2,550.00, highest $10,526.50. See every hospital.
Nearby hospitals, same service
| Hospital | Distance | Cash price | Gross charge | File date |
|---|---|---|---|---|
| Kaiser Foundation Hospital, Riverside Riverside, CA | 7.6 mi | $1,953.12 | $3,756.00 | 2026-04-01 |
| Chino Valley Medical Center Chino, CA | 10.9 mi | $534.00 | $3,409.93 | 2026-09-01 |
| Foothill Regional Medical Center Tustin, CA | 15.3 mi | $5,304.74 | $5,304.74 | 2026-03-18 |
| Montclair Hospital Medical Center Montclair, CA | 15.5 mi | $534.00 | $3,409.93 | 2026-09-01 |
| Kaiser Foundation Hospital - Orange County - Anaheim Anaheim, CA | 15.6 mi | $1,953.12 | $3,756.00 | 2026-04-01 |
| Riverside Community Hospital Riverside, CA | 15.9 mi | $10,526.50 | $10,526.50 | 2026-09-01 |
| Children's Hospital of Orange County Orange, CA | 16.7 mi | $2,691.00 | $2,691.00 | 2026-03-19 |
| San Antonio Regional Hospital Upland, CA | 17.1 mi | $1,412.00 | $6,337.00 | 2026-04-02 |
Distances are straight-line from ZIP code centers. Each hospital's figures come from its own file; files are updated on different dates.
Every row for CPT 99284 in this hospital's file
| Row in the hospital's file | Setting | Cash | Gross | Insurer min – max |
|---|---|---|---|---|
| LEVEL 4 ED W/O PROCEDURES 450 line 30276 | both | $8,143.00 | $71.49 – $7,328.70 | |
| OB ED LVL 4 W/PROCEDURE mod 25 line 30273 | both | $8,143.00 | $71.49 – $7,328.70 | |
| OB ED LVL 4 W/O PROCEDURE line 30274 | both | $7,384.00 | $71.49 – $6,645.60 | |
| LEVEL 4 ED W/ PROCEDURES 450 mod 25 line 30275 | both | $8,143.00 | $71.49 – $7,328.70 |
The first row is the one used above. A price for one code usually covers the hospital's facility charge only; the doctor, anesthesia, pathology and other services can be billed separately. Ask the hospital for a good faith estimate before a scheduled service: if you pay yourself and the bill comes in $400 or more above the estimate, you can dispute it under the No Surprises Act.
Check a bill from this hospital All Corona Regional Medical Center prices