How much does colonoscopy, diagnostic cost in Los Angeles, CA?
CPT 45378 — the fair price, every hospital's price, and the Medicare benchmark for Los Angeles, CA.
| Facility | Type | Price | vs Medicare | Quality |
|---|---|---|---|---|
| Adventist Health Glendale (Glendale) lowest ⚠ likely error | Hospital | $99cash | 0.1× | ★★★★★ |
| Adventist Health White Memorial (Los Angeles) ⚠ likely error | Hospital | $119cash | 0.1× | — |
| Providence Little Company of Mary Torrance (Torrance) | Hospital | $498cash | 0.5× | ★★★★★ |
| Providence Saint Joseph Medical Center (Burbank) | Hospital | $511cash | 0.6× | — |
| Los Angeles General Medical Center (Los Angeles) | Hospital | $603negotiated | 0.7× | ★★★★★ |
| Harbor-UCLA Medical Center (Torrance) | Hospital | $603negotiated | 0.7× | — |
| Providence Holy Cross Medical Center (Mission Hills) | Hospital | $611cash | 0.7× | — |
| Providence Cedars-Sinai Tarzana Medical Center (Tarzana) | Hospital | $678cash | 0.7× | ★★★★★ |
| Dignity Glendale Memorial Hospital (Glendale) | Hospital | $1,158negotiated | 1.3× | — |
| Dignity St. John's Regional Medical Center (Oxnard) | Hospital | $1,158negotiated | 1.3× | — |
| Dignity St. Mary Medical Center (Long Beach) | Hospital | $1,158negotiated | 1.3× | — |
| Dignity Northridge Hospital Medical Center (Northridge) | Hospital | $1,158negotiated | 1.3× | ★★★★★ |
| Dignity California Hospital Medical Center (Los Angeles) | Hospital | $1,158negotiated | 1.3× | — |
| UCLA Santa Monica Medical Center (Santa Monica) | Hospital | $1,274negotiated | 1.4× | ★★★★★ |
| Ronald Reagan UCLA Medical Center (Los Angeles) | Hospital | $1,355negotiated | 1.5× | ★★★★★ |
| UCI Health – Lakewood (Lakewood) | Hospital | $1,734negotiated | 1.9× | — |
| Kaiser Permanente Los Angeles Medical Center (Los Angeles) | Hospital | $2,080cash | 2.3× | ★★★★★ |
| Keck Hospital of USC (Los Angeles) | Hospital | $2,392negotiated | 2.6× | ★★★★★ |
| Cedars-Sinai Medical Center (Los Angeles) gross charge | Hospital | $3,965cash | 4.3× | ★★★★★ |
| MemorialCare Long Beach Medical Center (Long Beach) gross charge | Hospital | $6,134cash | 6.7× | ★★★★★ |
| Los Robles Health System (Thousand Oaks) gross charge | Hospital | $7,968negotiated | 8.7× | — |
- For 45378 (Colonoscopy, diagnostic), Medicare's benchmark rate is $911.71. A fair self-pay target for this line is $610.75. If I was charged more than that, please reduce it toward this benchmark.
- Your own published cash / self-pay price for 45378 is $610.75, and negotiated rates at nearby facilities run $603.46–$1,907.16. Please apply a rate in that range to my bill rather than the gross charge.
- Please send a fully itemized bill listing every CPT/HCPCS/DRG code and its individual charge, so I can review each line against published rates.
- Separately, what is your financial assistance / charity care policy, and am I eligible? Please send me the application and the income thresholds.
What should 45378 cost in Los Angeles, CA?
For colonoscopy, diagnostic (CPT 45378) in Los Angeles, CA, a fair self-pay price is around $1,158, with hospitals ranging from $603 to $1,907 across 21 facilities. Medicare's benchmark rate is $912, the floor to negotiate toward. The card above lists each hospital's price, cheapest first, with CMS quality stars.
Frequently asked questions
How much does colonoscopy, diagnostic cost in Los Angeles, CA?
A fair self-pay price for colonoscopy, diagnostic (CPT 45378) in Los Angeles, CA is around $1,158, with hospital prices ranging from $603 to $1,907 across 21 facilities. These are estimates from hospital-published prices, not a guarantee.
What is the Medicare rate for CPT 45378?
Medicare pays about $912 for colonoscopy, diagnostic (CPT 45378). That's the negotiation floor — a fair cash-pay target is roughly 1.5–2× it, well below typical gross charges.
Can I negotiate the price of colonoscopy, diagnostic?
Yes. Under the federal Hospital Price Transparency rule hospitals must publish these rates, so you can ask to pay the cash or negotiated rate instead of the gross charge. Paste your bill on the home page for a ready-to-send appeal letter and the exact numbers to cite.
Got a bill for this?
If you were charged more than the fair price, you can usually negotiate it down. Paste your itemized bill to get a personalized appeal letter, the exact numbers to cite, an AI negotiation coach, and a charity-care eligibility check — free.
Compare other procedures in Los Angeles, CA
Prices last refreshed September 2026 from each hospital's official CMS machine-readable file. Medicare rate: CY2025 OPPS/PFS/CLFS. Estimates only — not a guarantee.