He is a graduate of NYU Law School and Dartmouth College.

He is an elected member of the National Academy of Social Insurance; recipient of the National Organization of Social Security Claimant Representatives (NOSSCR’s) Distinguished Service Award; has supplied solicited testimony to Congress on Social Security Disability Reform; served on the Administrative Conference of the United States (ACUS), Social Security Disability Adjudication Working Group; and served on the Board of Directors of the National Center for Law & Economic Justice/Center for Social Welfare Policy & Law.

He has authored or co-authored numerous books on Social Security Law, Policy or Practice including: SOCIAL SECURITY DISABILITY LAW AND THE AMERICAN LABOR MARKET (NEW YORK UNIVERSITY PRESS, 2021); SOCIAL SECURITY LAW AND PRACTICE IN A NUTSHELL (Co-authored with Frank S. Bloch, West Acad. Pub. Co. 2022); ) and SOCIAL SECURITY LAW, POLICY AND PRACTICE: CASES AND MATERIALS (Co-authored with Frank S. Bloch, West Acad. Pub. Co., 2016) His latest forthcoming book is under contract with Cambridge University Press (CUP): THE COLOR OF SOCIAL SECURITY: RACE, RETIREMENT, DISABILITY AND DISPARITY IN THE CROWN JEWEL OF THE WELFARE STATE (CUP, forthcoming 2026).

His own law school clinical practice for over 35 years has focused on the social security disability programs, including co-counseling the successful appeal and serving as the principal drafter of the Petitioner’s Brief in the U.S. Supreme Court in Sims v. Apfel, 530 U.S. 103 (2000)—a case in which the high court also twice cited Dubin’s National Equal Justice Library award-winning COLUMBIA LAW REVIEW article Torquemada Meets Kafka (1997) and adopted the article’s doctrinal label, “issue exhaustion,” and reasoning in its decision. He was also Counsel of Record for 56 law professors from 40 law schools as Amicus Curiae in the U.S. Supreme Court in Carr v. Saul, 593 U.S. 83 (2021) (extending Sims), and has supervised a dozen successful appeals in the U.S. Courts of Appeal, and countless successful appeals in the district courts and in social security administrative hearings.