14 BILLS TRACKED

Heartworm test & prevention

An annual test plus year-round prevention. A recurring cost that adds up fast, and one where buying the meds elsewhere can save real money.

$65median paid

$38median list

$20lowest

$283highest

14.2×spread

Read the full guide: heartworm costs explained →

Every price we track (hover a dot)

List priceActually paid

The gap: advertised vs actually paid (medians)

List price (advertised)$386 prices

↑$27 more

Actually paid (reported)$657 prices

People reported paying 71% more than the advertised list price for heartworm.

List prices are advertised prices; paid figures are what people reported, often for different cases. Treat the gap as a signal, not a quote.

Quoted vs actually paid (real submissions)

The strongest signal there is: what one person was quoted, and what the same job actually cost them.

quoted $35↔paid $350%
Pleasant Hill Animal Hospital, Duluth GA; part of a vaccine visit
Anon · Georgia · 2015
quoted $48↔paid $480%
Line item within a GA vaccine visit for a Pit/Lab mix
Anon · Georgia · 2020

Year	Region	Practice	What it was	List	Paid	Src
2026	North Carolina	Independent / charity	Heartworm test (low-cost clinic)Stand For Animals, Charlotte published price	$20	—	source
2026	South Carolina	Unknown	Heartworm test (canine, blood draw)For canines over 8 months of age at this humane society clinic.	$20	—	source
2025	National	Unknown	Heartworm/4DX testStated as a $30-$60 line item based on analysis of 135 real vet invoices; used lower bound.	$30survey avg	—	source
2026	Texas	Independent / charity	Heartworm test (low-cost clinic)SNAP Houston published price	$35	—	source
2015	Georgia	Independent / charity	Heartworm test (private vet)Pleasant Hill Animal Hospital, Duluth GA; part of a vaccine visit	—	$35quoted $35	source
2021	South Dakota	Unknown	heartworm antigen rapid testConsumer cost report dated Oct 30, 2021, Vermillion, SD; total visit for two dogs was $279.91, line item shown here for the heartworm test only.	—	$36	source
2026	Arizona	Independent / charity	Heartworm test (low-cost clinic)Spay Neuter Clinic AZ published price	$41	—	source
2026	New Jersey	Independent / charity	Heartworm 4DX test (low-cost clinic)People for Animals NJ 4DX (heartworm/Lyme/anaplasmosis/ehrlichia)	$42	—	source
2026	Iowa	Independent / charity	Heartworm antigen testIndependent clinic published price list.	$47	—	source
2020	Georgia	Independent / charity	Heartworm test (private vet)Line item within a GA vaccine visit for a Pit/Lab mix	—	$48quoted $48	source
2025	Pennsylvania	Independent / charity	SNAP test (heartworm/tick-borne disease antigen test)IDEXX SNAP test line item (used for heartworm antigen and tick-borne disease screening), Philadelphia, PA; exact date not shown.	—	$65	source
2025	US unspecified	Unknown	annual vaccines visit bundled with heartworm test/prevention injectionTotal covers combined vaccines + heartworm test/prevention in one visit, not heartworm test alone; location not shown on the receipt page itself.	—	$73	source
2021	Arizona	Unknown	confirmation heartworm blood panelSame Phoenix, AZ consumer cost report (July 2, 2021) as the initial panel row above; this is the follow-up confirmation test.	—	$104	source
2021	Arizona	Unknown	initial heartworm diagnostic blood panel plus office visitConsumer cost report dated July 2, 2021, Phoenix, AZ; part of a larger $2,723 heartworm treatment total, this line item is the initial diagnostic panel + visit.	—	$283	source

Common questions

How much does heartworm cost in the US?

Across 14 real prices US pet owners actually paid, the median is $42, running from $20 to $283. These are real prices people reported, not clinic estimates.

Why do heartworm prices vary so much?

US vet prices are not published or regulated, so the same procedure swings with the clinic, the city and the state. Corporate-owned hospitals often charge more than independents, and an emergency room visit costs a multiple of a day practice.

Is heartworm cheaper at an independent vet?

Often, yes. Independent and nonprofit clinics tend to run below the big corporate chains for comparable work. Since prices are rarely posted, calling two or three nearby is worth it.

Related free guides

Methodology: prices here are bills people reported in public posts or crowdsourced invoice databases, or submitted directly. Each row links to its source where one exists. We never estimate and no sponsor can touch a number. Spot an error? Tell us and we will fix or remove it fast.