How much should electrocardiogram, interpretation and report only cost?

$16–$40

Based on the national Medicare reference rate (~$8) at a typical commercial multiple of 2×–5×. This is an order-of-magnitude estimate, not a quote — your hospital's actual contracted rate may differ.

Why prices vary for this

Cardiology tests like ECGs are sometimes billed twice for one visit — once for the "tracing" and once for the "interpretation," or duplicated across departments — when only one combined charge should apply.