Dr. Crumbley received his masters and doctorate in social work from the University of Pennsylvania. He is in private practice as a family therapist, trainer and consultant. His clinical experience includes adoption, foster care, chemical dependency, couples therapy, physical and sexual abuse. His most recent areas of specialization have been kinship care and transracial adoptions.

He has provided training and consultation nationally and internationally. Nationally, Dr. Crumbley has consulted with Spaulding for Children, Casey Family Programs, Casey Family Services, Brookdale Foundation, the Child Welfare League of America and the Department of Health and Human Services. Internationally, he has worked with the New Zealand Ministry of Children and Family Services, the Ministry of Children and Youth in Ontario Canada, the British Association for Adoption and Fostering, and the International Society for the Prevention of Child Abuse and Neglect in Durban, South Africa. He has been a guest on the BBC (British Broadcasting Corporation), PBS, Geraldo, Montel Williams Show and Nickelodeon. He has consulted with 60 Minutes, The New York Times and The Oprah Winfrey Show on the topics of transracial adoptions and kinship care.

Dr. Crumbley has co-authored a book with Robert Little entitled Relatives Raising Children: An Overview of Kinship Care. His second book is entitled Transracial Adoptions and Foster Care. Both books were published by the Child Welfare League of America. He has produced a series of DVD and VHS training tapes for parents and professionals on transracial adoptions and kinship care. He also has an on-line course on Kinship Care produced by Northwest Media, Inc. 

Dr Crumbley has provided expert testimony and briefings at the United Nations, U. S. House of Representatives, U. S. Senate, Pennsylvania Multi-Ethic Placement Task Force and Philadelphia City Council.

He has been a faculty member of the Adoption Certificate Programs at Portland State Graduate School of Social Work and Rutgers University Graduate School of Social Work.

Dr. Crumbley received the Child Welfare League’s Excellence in Kinship Care Practice Award in 2007. He is the current board president of NACAC, the North American Council on Adoptable Children.