Disability Insurance Protection and Fraud Prevention Act of 2015

[AI summary unavailable — showing source text] Disability Insurance Protection and Fraud Prevention Act of 2015 Requires the Inspector General of the Social Security Administration to increase the number of cooperative disability investigative units to 54 and distribute them equally among the most densely populated areas. Prohibits the Commissioner of Social Security, in determining whether an individual is under a disability for insurance benefit payment purposes, from considering: (1) an individual as approaching advanced age unless he or she has attained age 58; (2) an individual as having attained advanced age unless he or she has attained age 61; and (3) the individual's inability to communicate in English as a vocational factor. Amends titles II (Old Age, Survivors and Disability Insurance) (OASDI) and XVI (Supplemental Security Income) (SSI) of the Social Security Act to eliminate consideration of the combined effect of impairments in disability determinations. Makes appropriations for continuing disability reviews for FY2016-FY2020. Directs the Commissioner to assess for Congress after FY2018 the amount of savings attained as a result of such appropriations in the federal disability program under the OASDI and the SSI p…