This is a solicitation for an Indefinite Delivery, Indefinite Quantity (IDIQ), firm-fixed-price contract for Revenue Enhancement Services at Indian Health Service facilities in Montana, including Blackfeet, Crow, Fort Belknap, Fort Peck, and Northern Cheyenne service units. The contract is 100% set aside for Indian Small Business Economic Enterprises (ISBEE) and has a 12-month period of performance. The government guarantees a minimum contract value of $1,500, while the total aggregate value of all orders will not exceed $3,800,000. Offerors must be registered and active in SAM at the time of quotation submission.