About DSI

DSI Medical is the National Leader in Drug and Alcohol Program Management Services. DSI was founded in 1991 and quickly gained a reputation as a leader in providing complete management and oversight for substance abuse testing programs.

With an elite, experienced and knowledgeable staff – well versed in Federal, State and local regulations – our customers benefit from a Drug and Alcohol Program that insures sound decisions, defensibility and mitigated risk.

Our Mission

Our mission is to provide a superior level of excellence in drug and alcohol testing program management that assures our clients’ policy and regulatory objectives are achieved while at the same time minimizing their risk and liability.

Our Vision

Our vision is that our culture will inspire each individual within our organization to make our customers more than satisfied, make a difference in our world and further provide value that supersedes our customers’ expectations.


Philip Dubois
Executive Vice President
Mr. Dubois is the Executive Vice President at DSI MEDICAL SERVICES. He joined DSI MEDICAL SERVICES in November of 2008. Prior to his employment with DSI MEDICAL SERVICES, Mr. Dubois held various sales management positions at Quest Diagnostics including Director of Sales. He was also Vice-President of American Medical Laboratories from 1994-2002. Prior to this he was a sales representative for both Allied Clinical Laboratory and Doctor’s and Physician Laboratory. Mr. Dubois is a graduate of the University of Central Florida.

Mr. Dubois has worked in the drug and alcohol testing industry since 1992.  He is an expert in the field of drug testing, the various means of testing, federal and state testing laws, company policy development as well as all aspects of alcohol testing.  Mr Dubois is also an Executive Board Member of Drug and Alcohol Testing Industry Association, Inc. (DATIA).  His knowledge and vast experience complement the DSI MEDICAL SERVICES staff.

Joseph Whelan
Mr. Whelan is the Director Contracts & Regulatory Oversight at DSI MEDICAL SERVICES. He has been in that position since 2002. He has over 33 years experience in the transportation industry specifically in the areas of Human Resources, employment litigation, substance abuse testing, training and management.

Mr. Whelan initiated one of the first corporate drug-testing programs in 1983 and participated in drafting the drug and alcohol testing language of the National Master Freight Agreement (NMFA) Article 35, Section 3 & 4 which covers over 100,000 unionized truck drivers across the United States. Mr. Whelan has served on numerous occasions as an “Expert Witness” involving 49 CFR Part 40, 382,655,199 and 46 CFR Parts 16 & 4 in labor/litigation procedures. He is an expert in all aspects of the federal transportation drug and alcohol programs, has conducted numerous employee and supervisor training programs and is a Certified Breath and Alcohol Technician (BAT).