Board of Mental Health

The governing board of the Mississippi Department of Mental Health is composed of nine members appointed by the Governor of Mississippi and confirmed by the State Senate. Members’ terms are staggered to ensure continuity of quality care and professional oversight of services. By statute, the nine-member board is composed of a physician, a psychiatrist, a clinical psychologist, a social worker with experience in the field of mental health, and one citizen representative from each of Mississippi’s five congressional districts (as existed in 1974).


Meetings of the Board of Mental Health are open to the public. Meetings are held on the third Thursday of each month at 9:30 a.m. For more information, contact Grenaye Sullivan at 601-359-6260.


Dr. Jim Herzog, Chair

Dr. Jim Herzog of Jackson is a Clinical Psychologist in private practice. Dr. Herzog received a bachelor’s degree in Psychology from Creighton University and a master’s and Doctorate in Clinical Psychology from the University of Mississippi. Currently, his practice involves consultation with the Region 8 Mental Health Services, the Department of Vocational Rehabilitation/Disability Services, and Catholic Charities, as well as providing individual therapy and assessment with adults, adolescents, and children. Dr. Herzog was appointed to serve as the Clinical Psychologist representative.


Sampat Shivangi, M.D., Vice Chair

Sampat Shivangi, M.D. of Ridgeland is the president and CEO of US Info Systems of Mississippi. From 2005 – 2008, Dr. Shivangi served as the Advisor to the US Secretary of Health and Human Services. He is the past president elect of the American Association of Physicians of Indian Origin. He is the founding president of the American Association of Physicians of Indian origin in Mississippi and is the past president and chair of the India Association of Mississippi. He previously served on the Mississippi State Board of Health. He also served as a house delegate in American Medical Association Chicago, IL. Dr. Shivangi represents the Medical Physician category on the Board of Mental Health.


Mr. Rick Barry

Mr. Rick Barry of Meridian is partner in the law firm of Hammack, Barry, Thaggard and May, LLP in Meridian. Barry received his law degree from the University of Mississippi. He is a member of the American Bar Association, Mississippi Bar Association, Lauderdale County Bar Association and the American Health Lawyers Association. Mr. Barry was appointed to serve as the Third Congressional District representative.


Margaret Kea Cassada, M.D.

Margaret Kea Cassada, M.D., of Greenville is board certified by the American Board of Psychiatry and Neurology. Dr. Cassada is a member of the Mississippi Psychiatric Association and the Southern Psychiatric Association. She is a fellow of the American Psychiatric Association. Dr. Cassada is the medical director and psychiatric consultant for several facilities in the Delta and is Board certified. She received her bachelor’s degree from University of South Carolina and her M.D. from the University of South Carolina School of Medicine. Dr. Cassada was appointed to serve as the Psychiatrist representative.


Ms. Manda Griffin

Ms. Manda Griffin of Houlka is a registered respiratory therapist, a licensed social worker, registered nurse, and a board certified family nurse practitioner. She received her bachelor’s degree from Mississippi University for Women and her master’s degree from Alcorn State University. Ms. Griffin was appointed to serve as a lay representative for the Second Congressional District.


Mr. George Harrison

Mr. George Harrison of Coffeeville attended Northwest Community College and served as a Production Manager for 41 years at Lennox International in Grenada. He previously served on the Governor’s Council for Developmental Disabilities and the BMR Advisory Council. Mr. Harrison was appointed to represent the First Congressional District and is a family member of a consumer.


Mr. Robert Landrum

Mr. Robert Landrum of Ellisville has served on Ellisville State School Parent’s Association and the Mississippi Developmental Disabilities Planning Council. In 2005, he received the James “Jimmy” Stubbs Award, Commitment of Volunteer Service to Mississippians with Mental Retardation, Mental Illness, and Chemical Dependencies. He has been involved in mental health since the early 1980s when he and his wife became active in Ellisville State Schools Parents and Friends Organization. Mr. Landrum was appointed to represent the Fifth Congressional District and is a family member of a consumer.


Mr. John Perkins

Mr. John Perkins of Brookhaven attended the University of Mississippi, majoring in Business Administration. He subsequently managed a retail business in Brookhaven for 10 years before going to work at United Air Lines as an airline pilot. While at United, he served in a number of flight management positions, and retired as Manager of Fleet Operations. Perkins also served in the U.S. Air Force for four years during the Korean War and remained active in the Air Force reserve, including 10 years with the Mississippi Air National Guard. He retired with the rank of Colonel. Mr. Perkins was appointed to represent the Fourth Congressional District.


Ms. Rose Roberts

Ms. Rose Roberts of Pontotoc is a clinical social work consultant. She received her bachelor’s degree from Blue Mountain College and her M.S.W. from Tulane University. Her professional credentials include: Licensed Certified Social Worker, Qualified Clinical Social Worker, Diplomat in Clinical Social Work and the Academy of Certified Social Workers. Roberts was appointed to the Board of Mental Health in 2008. Ms. Roberts was appointed to serve as the Social Worker representative.

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