The Billings Area Indian Health Service intends to award a firm-fixed-price, non-personal-service IDIQ contract for Revenue Enhancement Services under a 100% Indian Small Business Economic Enterprises set-aside (NAICS 518210). Services will be performed at IHS facilities in Montana, including the Blackfeet, Crow, Fort Belknap, Fort Peck, and Northern Cheyenne service units. The period of performance is 12 months, with a guaranteed minimum of $1,500 and an IDIQ maximum aggregate value of $3,800,000. Offerors must be registered and active in SAM at the time of quotation submission, complete the Indian Firm Representation Form, and may propose an alternative line-item structure mapped to the government’s requirements. Award will be made to a responsible offeror whose proposal provides the best value to the government based on price and other factors, with an updated Statement of Work and Q&A attached.