Lab tests
C. diff (Clostridium) antigen/toxin test, immunoassay cost in California
C. diff (Clostridium) antigen/toxin test, immunoassay is a lab test. Many labs sell tests directly to the public for a flat cash price, often far below hospital prices.
Typical cash price
In California
From 281 hospital and 0 clinic prices in California.
Nationwide typical: $66.13 (most listed prices $15.62–$209).
Cheapest in California
- $3.40
Doctor fees are billed separately.
Source: Ukiah Adventist Hospital price file · checked Oct 2026 - Kern Valley Healthcare DistrictC. diff (Clostridium) antigen/toxin test, immunoassayFacility fee only$3.95
Doctor fees are billed separately.
Source: Kern Valley Healthcare District price file · checked Oct 2026 - Hayward sisters hospital dba st rose hospitalC. diff (Clostridium) antigen/toxin test, immunoassayFacility fee only$4.73
Doctor fees are billed separately.
Source: Hayward sisters hospital dba st rose hospital price file · checked Oct 2026 - Riverside University Health System previously known as Riverside County Regional Medical CenterC. diff (Clostridium) antigen/toxin test, immunoassayFacility fee only$5.14
Doctor fees are billed separately.
Source: Riverside University Health System previously know price fil · checked Oct 2026 - $5.72
Doctor fees are billed separately.
Source: Saint Agnes Medical Center price file · checked Oct 2026 - $5.74
Doctor fees are billed separately.
Source: Barstow Community Hospital price file · checked Oct 2026 - Bear Valley Community HospitalC. diff (Clostridium) antigen/toxin test, immunoassayFacility fee only$5.76
Doctor fees are billed separately.
Source: Bear Valley Community Hospital price file · checked Oct 2026 - $5.93
Doctor fees are billed separately.
Source: Eisenhower Medical Center price file · checked Oct 2026 - $6
Doctor fees are billed separately.
Source: Hi-Desert Medical Center price file · checked Oct 2026 - UCSF Benioff Children's Hospital OaklandC. diff (Clostridium) antigen/toxin test, immunoassayFacility fee only$6
Doctor fees are billed separately.
Source: UCSF Benioff Children's Hospital Oakland price file · checked Oct 2026 - $6.37
Doctor fees are billed separately.
Source: Barton Memorial Hospital price file · checked Oct 2026 - $6.73
Doctor fees are billed separately.
Source: French Hospital price file · checked Oct 2026
See all prices for C. diff (Clostridium) antigen/toxin test, immunoassay
Common questions
Do I need a doctor's order?
In most states, direct-to-consumer labs can sell many tests without a separate doctor visit. Some states and some tests still require an order.
Is the blood draw included?
Usually yes for lab stores and booking sites. Hospitals sometimes bill the draw (venipuncture) separately.
Why are prices so different?
Each hospital and clinic sets its own cash price. Hospitals publish prices because federal rules require it; clinics and booking sites set prices to compete. The same service can cost several times more at one place than at another nearby.
Can I pay cash if I have insurance?
Yes. You can choose to self-pay. A cash price is often lower than what you would pay before meeting your deductible. Cash payments may not count toward your deductible, so check with your plan. Our cash vs. insurance tool can help you decide.
What is a Good Faith Estimate?
If you are uninsured or paying cash, providers must give you a Good Faith Estimate of the cost on request. If your final bill is $400 or more above the estimate, you can dispute it.