Drugs
Isoniazid injection, per 1 mg cost in California
Isoniazid injection, per 1 mg is an imaging test. Cash prices for imaging vary widely: hospitals often charge several times what an independent imaging center charges for the same scan.
Typical cash price
In California
From 39 hospital and 0 clinic prices in California.
Nationwide typical: $515 (most listed prices $68.66–$2,434).
Cheapest in California
- $479
Doctor fees are billed separately. As listed: isoniazid 100 mg/mL Soln 10 mL VIAL +15 more in this system at the same published price. Location not independently confirmed.
Source: Baldwin Park Medical Center price file · checked Oct 2026 - $515
Doctor fees are billed separately. As listed: isoniazid 100 mg/mL Soln 10 mL VIAL +19 more in this system at the same published price. Location not independently confirmed.
Source: Antioch Medical Center price file · checked Oct 2026 - $588
Doctor fees are billed separately. As listed: ISONIAZID 100 MG/ML INJECTION SOLUTION|DISCARDED DRUG NOT AD Location not independently confirmed.
Source: Lucile Salter Packard Children's Hospital at Stanf price fil · checked Oct 2026 - Riverside University Health System previously known as Riverside County Regional Medical CenterIsoniazid injection, per 1 mgFacility fee only$1,680
Doctor fees are billed separately. As listed: ISONIAZID 100 MG/ML INJECTION SOLUTION
Source: Riverside University Health System previously know price fil · checked Oct 2026 - $2,788
Doctor fees are billed separately. As listed: ISONIAZID 100 MG/ML INJECTION SOLUTION
Source: John Muir Health Walnut Creek Medical Center price file · checked Oct 2026
Common questions
Is the radiologist's read included?
Not always. Hospitals usually list the scan (technical fee) and the radiologist's read (professional fee) separately. Many imaging centers quote one all-in price. Look for the "All-in", "Scan only" or "Read only" label on each price.
Do I need a referral?
Most imaging tests need an order from a doctor, nurse practitioner or physician assistant. Some imaging centers can arrange one; ask when you call.
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.