Facilities that bill for wound care supplies should conduct an internal audit quarterly, as well as an external audit annually with a wound care consultant or other expert, said Marilyn Mines, RN, BC, RAC-C, manager of clinical services for FR&R Healthcare Consulting, Inc., in Deerfield, IL, during the December 18, 2007, HCPro audioconference, "Billing for Part B Wound Care: Get Paid for the Care and Supplies Your [Skilled Nursing Facility (SNF)] Provides."