The Team

Alan A Allison, RRT. EMT-P. CAOHC, BS (Founder)

Alan began his medical career in 1972 after graduating from Campbell High School/ Fairburn Georgia. He attended Ga State University attaining several college degrees (BS Biology, Health Sciences).  His hospital careers afforded him to gain clinical experience from general Respiratory Services,  Neonatal, Open Heart Surgery,  Life Flight, & National Disaster Medical Assistance Team          (Ga-Logistics Coordinator). He began OHSS in 1996 and have been in business since that  time.     

Pamela A Allison

Alan & Pam was married in 2017. She  now runs the over all office functions as well as going out in the field with Alan. Her background consist of Cosmetologist, Pharmacy Technician, Head Inspector Injection Molding Manufacturing  


National Toxicology Specialists (NTS) Dr Greg Elam- Medical Review Officer

 Greg Elam, M.D. is  certified by the American Association of Medical Review Officers. He has  clinical experience in dealing with controlled substance disorders and  has supervised the review of over two million drug tests. He brings a  very professional and personable approach to the review of drug tests.  The first interaction with someone knowledgeable about substance abuse  disorders is likely with the MRO. Therefore, the MRO interview sets the  tone for future interactions, giving the MRO the opportunity to provide a  positive approach to a shame based condition. Dr. Elam epitomizes the  professional but compassionate physician in dealing with drug test  issues. 

Find out more about NTS

About Us


OHSS Primary Laboratories

OHSS contracts with several Laboratories to collect samples (Urine and/or Blood)  and then forward the sample for proper analysis.  All "Non-Negative" urine samples are reviewed by our contracted MRO.

MedTox & Lab Corp web site

Company Direction

Alan started OHSS on a "shoe string" budget in 1996. He grew the company to 6 Mobile units, many  fixed clinical rooms for clients & support staff to provide "daily Support Services" for some clients, and  conducting over 40.000 procedures per year. In 2008 when the US economy took a hard turn , OHSS survived this upset. His business efficiency afforded him the ability to remain in business and still now servicing his survival  clients as well as  taking on new ones.



The New Beginning to follow