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Stephen Koca is a principal and consulting actuary with the Los Angeles office of Milliman. He joined the firm in 2005.
Prior to joining Milliman, Stephen worked for a leading nationwide medical professional liability carrier.
Stephen specializes in medical professional liability. His primary areas of expertise include unpaid claim analyses and loss ratio projections for traditional insurers, risk retention groups, captives, and self-insureds in all property and casualty lines of business. His expertise also includes the evaluation of excess or reinsurance layers of loss and the evaluation of reinsurance contracts as well as pro-forma financial projections.
Stephen is active with the NAIC and frequently participates in calls and meetings relating to casualty actuarial issues with NAIC task forces. In addition, Stephen leads the American Academy of Actuaries update of its Practice Note for Statements of Actuarial Opinion on Property and Casualty Loss Reserves for 2022.