How much does heartworm treatment cost?

Typical price range, what drives it, and what you'd pay with insurance.

Heartworm treatment — typical cost

$500 – $1,500

National range for dog. Your price varies by clinic, region, and severity.

With 80% insurance (after a $250 deductible) you'd pay about

$300 – $500

If it's a covered, non-pre-existing condition. The insurer reimburses the rest.

What is it?

Treating an active heartworm infection — a series of injections, medications, and strict rest over several months. Far costlier than monthly prevention.

What affects the cost

Severity of infection
Dog's size
Number of injections
Hospitalization and monitoring
Follow-up testing

What you'd pay with pet insurance

Accident-and-illness pet insurance typically reimburses 70–90% of a covered bill after your deductible. For a $1,000 heartworm treatment, an 80% plan with a $250 deductible would pay you back roughly $600 — as long as the condition isn't pre-existing. That's why enrolling before a problem appears matters so much.

Try next: Reimbursement calculator · Is pet insurance worth it? · Estimate another procedure

Cost ranges are national estimates compiled from veterinary teaching-hospital and pet-care financing references; individual prices vary widely. Not a quote or veterinary advice.

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Frequently asked questions

Heartworm treatment typically runs $500–$1,500, depending on severity of infection, your region, and the severity. Treating an active heartworm infection — a series of injections, medications, and strict rest over several months. Far costlier than monthly prevention.

Accident-and-illness insurance generally covers it when the condition is new (not pre-existing), reimbursing 70–90% after your deductible — roughly $300–$500 out of pocket on an 80% plan.

Get an itemized estimate, ask about general-practice vs. specialist pricing, consider care-financing options, and — before any problem starts — insure your pet so a future bill like this is largely reimbursed.