Corona Regional Medical Center billing

800 South Main Street, Corona, California 92882

  • Proprietary
  • Acute Care Hospitals
  • CMS rating 3 of 5

1. Call billing

Have your account number ready. Ask for an itemized bill and ask whether you can apply for financial assistance.

Main hospital line
(951) 736-6240
Ask for patient billing or patient financial services.
Call (951) 736-6240

2. See if you qualify for free or discounted care

Hospitals that aren't nonprofit don't have to offer financial assistance, but many do. Ask billing for their policy, and check your income below.

Start an application cover letter

3. Send it in writing

A written request creates a record. Fill in your details, then print, email or mail it to Corona Regional Medical Center billing.

  • Request an itemized bill
    Every charge, with its billing code. Start here.
    Get letter
  • Apply for financial assistance
    Cover letter for the hospital's application, with a request to pause collections.
    Create letter
  • Dispute a charge
    For duplicate lines, services you didn't get, or prices you want explained.
    Start dispute

Have your itemized bill?

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Corona Regional Medical Center in Corona, California receives a BillKarma billing grade of F based on an average markup of 16.7x Medicare rates across 5 procedures in their published price transparency file. This places it in the top 25 most expensive hospitals in California by markup ratio. The highest individual markups are for Total Knee Replacement (31.5x Medicare) and Knee Arthroscopy (25.1x Medicare). Patients with scheduled procedures at this hospital should review costs and compare nearby alternatives before confirming — charges at D and F grade hospitals are significantly above the national average.

Common procedure prices

Last updated: 2026-10-21

Code Description Hospital charge Cash price Medicare pays Markup
27447 Total Knee Replacement $36509.00 $32791.00 $1159.35 31.5×
29881 Knee Arthroscopy $12934.00 $11617.00 $515.71 25.1×
10060 Abscess Drainage $1317.00 $968.00 $100.54 13.1×
20610 Joint Injection (drainage) $306.00 $288.00 $39.75 7.7×
11042 Wound Debridement $347.00 $255.00 $55.78 6.2×

Highlighted: charged at 5× or more what Medicare pays for the same code.

How to dispute a bill from Corona Regional Medical Center

Last updated: 2026-10-21

CORONA REGIONAL MEDICAL CENTER currently shows a billing grade of F with an average markup around 16.7x versus Medicare reference rates. In currently loaded benchmark samples, this is above the state average (12.1x) and above the national average (8.0x). Use that benchmark when asking billing to review line items and justify large gaps. If you are self-pay or high-deductible, ask for the cash/self-pay schedule first. Recent cash discounts are around 15.8%, which can be a practical anchor in your negotiation. Before paying, scan your bill with BillKarma to identify line-item issues and generate a dispute packet.

Location

Location map unavailable for this hospital.

Map shows Corona Regional Medical Center at 800 SOUTH MAIN STREET, Corona, California, 92882. Nearby hospitals within 50 miles include Alta Bates Summit Medical Center - Alta Bates Camp, Anaheim Medical Center, California Pacific Medical Center - Mission Bernal.

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