IOP Staff

IOP Staff

The staff of our intensive outpatient treatment program are highly trained professionals who dedicate themselves to the healing and emotional wellness of each and every client.

Intensive Outpatient Program Staff

At Pine Grove Behavioral Health & Addiction Services, our treatment staff are known for their leadership and expertise in the diagnosis, management, and treatment of addictive diseases and psychological disorders. Learn more about the background and experience of each Intensive Outpaient Program staff member by clicking on their image below:


John Herrington, MS, LPC

John Herrington is a licensed professional counselor with the Next Step program at Pine Grove Behavioral Health & Addiction Services. He received his undergraduate degree in psychology and master’s degree in counseling psychology from The University of Southern Mississippi in Hattiesburg, Mississippi. John worked for five years with Pine Belt Mental Healthcare at Oak Arbor working with clients struggling with addiction. He has experience working with drug court, VA, and other local and state resources. John began his work with Pine Grove in March of 2011 working with the Next Step and Sober Living programs providing individual and group therapy for those struggling with addiction. He worked with Pine Grove’s Legacy program as a therapist and then as a Clinical Director for four years before returning to Next Step as Clinical Director.

Chaz Richardson, DO

Dr. Charles “Chaz” Richardson is a graduate of The University of Mississippi Medical Center in Jackson, MS where he also completed his psychiatry residency. Dr. Richardson completed his fellowship in Addiction Psychiatry at Emory University in Atlanta, GA and is a member of the American Academy of Addiction Psychiatry, American Psychiatric Association, and Mississippi State Medical Association. Dr. Richardson joined the Pine Grove staff in 2018 and currently evaluates and treats adult patients for Pine Grove’s inpatient and residential treatment programs.

William S. Turner Jr., PMHNP-BC

William Turner is a Psychiatric Mental Health Nurse Practitioner (PMHNP-BC) board-certified through the American Nurses Credentialing Center (ANCC). He earned both his Bachelor and Master of Science in Nursing from The University of Southern Mississippi, graduating with honors, and receiving the National Collegiate Nursing Award. William is an associate member of the American Society of Addiction Medicine (ASAM), and provides treatment to patients within Pine Grove’s addiction treatment programs, including the Women’s Center, Next Step, Legacy, and Gratitude programs.

Vanessa Cox, MSW, LCSW, CMAT

Vanesa Cox is a Licensed Certified Social Worker and Social Work Supervisor. She received her Bachelor of Social Work and her Master of Social Work Degrees from The University of Southern Mississippi and is certified in Eye Movement Desensitization and Reprocessing (EMDR) and as a Certified Multiple Addiction Therapist (CMAT). Cox presently provides EMDR therapy to Pine Grove’s Specialty Treatment Program patients and has been a part of the Pine Grove team since October of 2005. She has also worked as the Clinical Director for Pine Grove’s Women Center and Next Step programs. Cox worked in the fields of addiction and mental health for sixteen years as House Manager, Counselor Associate, Counselor, and Clinical Director prior to joining Pine Grove.

Jessica Robinett

Jessica Robinett, LPC

Jessica Robinett has been with Pine Grove Behavioral Health & Addiction Services since July 2015, she received a Bachelor of Science degree at William Carey University in Hattiesburg, MS and a Master of Art in Counseling Psychology at Colorado Christian University in Denver, CO. While in graduate school, she participated in an internship at a sexual offender treatment facility. Jessica Robinett now specializes in addiction treatment for both substance abuse and process addictions. She is also well-versed in cognitive-behavioral therapy, dialectical behavior therapy, and mindfulness-based therapy.