David is a clinician at Modern Assistance. He is a substance abuse counselor, criminal justice specialist, and is an expert addictions witness for clients in the Massachusetts court system. He is a retired member of Laborers Union Local 88 and Teamsters Union Local 25. He has been in the substance abuse field since 2012. David holds a Master’s Degree in Psychology Counseling, is a licensed and certified alcohol and drug counselor, a substance abuse professional for the Department of Transportation, a certified Massachusetts problem gambling specialist, and is a certified clinical forensics counselor.