Healthsouth says it's being investigated by the Securities and Exchange Commission.
The nation's largest provider of outpatient surgery and rehabilitation services has locations in Staunton and Waynesboro.
The probe comes in the wake of recent disclosures its earnings would be sharply lower than expected and its founder, Richard Scrushy, had sold half his stake in the firm a few weeks before the profit warning.
The company did not say exactly what the SEC is examining but said it's cooperating fully with the probe.
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