Prior to joining the Burgess,  Mary Ann Clark was a Director of Health Economics & Reimbursement at Boston Scientific Corporation for eight years, where she developed strategies for overcoming reimbursement and economic barriers to market adoption of cardiovascular, neurovascular, peripheral vascular, women's health and neuromodulation products.

Mary Ann has developed methods for assigning costs to medical services, assessed economic influences of medical technologies, and served as a technical expert on RBRVS, APCs, DRGs, Medicare and private payer reimbursement policies.

Early in her career, Mary Ann was a member of the Harvard research team that developed the RBRVS payment system for the Health Care Financing Administration (Center for Medicare and Medicaid Services) that is now used as the basis for reimbursing physicians under the Medicare program.

She has more than fifteen years experience in the field of health economics and reimbursement and has authored over forty publications on the economic impact of medical technologies.