Senior Management


  1. David C. Pulver, M.D.

    David C. Pulver, MD, President and Founder of the IMA Group, is certified by the American Board of Internal Medicine and the American Board of Addiction Medicine. He is a Clinical Assistant Professor of Medicine at New York Medical College and has been involved with the Social Security Disability evaluations program for over 30 years.

  1. Mark I. Weinberger, Ph.D., M.P.H

    Mark I. Weinberger, PhD, MPH, Vice President of Clinical Services and Chief Operating Officer, is a licensed psychologist and psychiatric epidemiologist who joined IMA in 2011. Dr. Weinberger received his PhD in clinical psychology from the University of Massachusetts Amherst, and his MPH in epidemiology from New York Medical College. He serves as Clinical Instructor of Psychology in Psychiatry at Weill Cornell Medical College. Dr. Weinberger is responsible for the day to day operations of the Company, in addition to overseeing the professional staff and clinical services.

  1. Barbara J. Young

    Barbara J. Young, Vice President of Business Development, joined IMA in 1998. She is the former Medical Relations Coordinator for the New York State Division of Disability Determinations, where she served as a Medical Relations Officer, Contract Manager, and Coordinator of Medical Relations Activities on a statewide basis. As a member of the Central Office Administrative staff, Barbara coordinated special projects for the Social Security Administration and the New York City Human Resources Administration.

  1. Jeanine M. DeLong

    Jeanine M. Zimmerman, Vice President of Finance, joined IMA in 2007. She has over 20 years of extensive experience as a Controller and CFO. Prior to joining IMA she managed the accounting/ finance departments and operations of a foreign-based corporation. She is currently responsible for the financial and business decisions of the Company.