Emergency visit, high (level 4) at Mount Sinai South Nassau. CPT 99284.
What Mount Sinai South Nassau publishes for this service, straight from its standard-charges file, last updated April 1, 2026.
Outpatient / ER
—cash price (self-pay)
—list price
$521–$521range insurers pay
| Insurance plan | Negotiated rate |
|---|---|
| Aetna | Medicare Advantage | $521 |
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