Rural Physicians' Incentives Act of 1991

Rural Physicians' Incentives Act of 1991 - Amends the Internal Revenue Code to allow a deduction on medical education loan interest of a physician which accrues while the physician is living in and providing primary care to residents of a medically underserved rural area. Amends title XVIII (Medicare) of the Social Security Act to exempt services furnished in a rural area from a special fee schedule applicable to new physicians. Amends the Higher Education Act of 1965 to extend beyond the normal two-year limit, for borrowers serving an internship or residency program in preparation for practice in an area of primary care, the deferral of payments on: (1) insured student loans (Stafford Loans), including those eligible for interest subsidies; and (2) low-interest student loans (Perkins Loans). Amends titles XVIII (Medicare) and XIX (Medicaid) of the Social Security Act to modify provisions setting forth requirements concerning billing by one physician for services rendered by another physician in specified circumstances.