About Us

Affordable SAP Evaluations Nationwide

Same-Day SAP Evaluations Available

Our qualified Substance Abuse Professionals (SAP) are trained to complete evaluations for employees in safety-sensitive positions regulated by the Department of Transportation (DOT).

We are committed to providing SAP services under the Federal Department of Transportation guidelines. According to the U.S DOT, when testing positive or refusing to try, you are prohibited from performing any safety-sensitive duties under any DOT-regulated employer until you have seen a Substance Abuse Professional and completed the return-to-duty process.

The Philadelphia Diversion Center requires each evaluation to be handled professionally. Dr. Essence Allen-Presley is a Substance Abuse Professional who is experienced in administrating the regulations required by DOT.

What People are Saying

I just want to say thank you to Dr Essence, I was going into my meeting like I really have to do this, but it turned out better then I thought, Dr Essence was really easy to talk to, she gave me some really good advice and a lot of helpful tips, I really am happy that I went through this experience, my life will forever be changed in the most positive way, I hope anyone going through anything right now makes it out on top, Dr Essence thank you again for a judgment-free zone and helping me see the world a little clearer now, thank you so much God Bless….

Anthony Ivy

23 May 2022

Dr Presley was amazin and highly professional I felt 1000% comfortable going through this experience due to her knowledge


04 Jun 2022

Dr. P was cool. She was patient. I am hoping to get back to work in a few weeks.


22 July 2022

To be honest, I didn’t know what to expect, but it was great experience. Dr. Essence was helpful, kind, and fair.

Phillip Smith

28 May 2022