Colonoscopy, diagnostic at St. Mary Medical Center. CPT 45378.

What St. Mary Medical Center publishes for this service, straight from its standard-charges file, last updated February 28, 2026.

Outpatient / ER

—cash price (self-pay)

—list price

$339–$6,054range insurers pay

Insurance plan	Negotiated rate
HCLA \| Medicaid\|Preferred IPA < 21	$339
HCLA \| Medicaid\|Preferred IPA > 21	$339
Inland Empire Health Plan \| Medicaid\|All Plans	$339
Partnership Health Plan \| Medicaid\|< 21	$339
Partnership Health Plan \| Medicaid\|> 21	$339
BCBS - Anthem \| Medicaid\|All Plans	$423
Health Net \| Medicaid\|< 21	$451
Health Net \| Medicaid\|> 21	$451
Noble IPA \| Medicaid\|< 21	$481
Noble IPA \| Medicaid\|> 21	$481
Kaiser \| Medicaid\|< 21	$508
Kaiser \| Medicaid\|> 21	$508
Preferred IPA \| Medicaid\|Risk	$534
Angeles IPA \| Medicare\|All Plans	$534
Molina \| Medicaid\|All Plans	$748
BCBS - Anthem \| Medicare\|All Plans	$1,158
Blue Shield CA \| Medicare\|All Other Plans	$1,158
Central Health Plan \| Medicare\|All Plans	$1,158
Cigna \| Medicare\|All Plans	$1,158
EasyChoice \| Medicare\|All Plans	$1,158
HCLA \| Medicare\|Preferred IPA	$1,158
Health Net \| Medicare\|All Other Plans	$1,158
Health Net \| Medicare\|HMO	$1,158
Humana \| Medicare\|All Plans	$1,158
Kaiser \| Medicare\|All Plans	$1,158
LA Care \| Medicare\|All Plans	$1,158
Molina \| Medicare\|All Plans	$1,158
HPN \| Medicare\|Senior	$1,274
LA Care \| Medicaid\|All Plans	$1,396
HCLA \| Commercial\|Preferred IPA	$1,448

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