Our Team

Dr. Keith Marshall, Psy.D.,M.A., LAADC, SUDCC-IV-CS, C.A.TC.V

CEO & Clinical Director

  • Doctorate  Degree – Clinical Psychology
  • Master’s Degree – Human Development (Specialization- Marriage and Family Therapy)
  • Bachelor’s Degree – Human Development (Specialization-Early Childhood Education)
  • Certificate – Specialist in Alcohol and Drug Studies
  • License-California Consortium of Addiction Programs and Professionals(CCAPP # LCi10920318)
  • Certification-California Association of DUI Treatment Programs (CADTP # 6360)
  • Certification-Addiction Councelor Certification Board of California (ACCBC #091947-V)
  • Certified Professional Fitness Trainer (N.C.C.P.T & N.H.C.A)

I was born in the City of Philadelphia, Pennsylvania. Throughout my formative years and into high school I was a good student and competed in both football and track and field and graduated with meritorious honors. After graduating from high school, I started college (which I subsequently dropped out of due to my addiction to drugs) and worked at a cleaning service company where I worked my way into management within one year. For many years I was able to obtain work as a manager in the services industry, but unable to maintain the job (again due to drug addiction). 

Unfortunately, during my early adult years, I experimented with drugs and alcohol and fell victim to the powerful grip of addiction. I tried desperately for over 20 years, to break free from the grip of drug addiction, going in and out of treatment centers and churches, begging “God” for deliverance. My addiction to drugs led me to many years of unemployment, loss of finances, homelessness and sleeping in abandoned buildings and “crack’ houses. I was in and out of jails, shot in the head and stabbed, suffering many other tragic and near-death situations. Moreover, and most regrettable, my addiction to drugs caused so much hurt and pain in the lives of others. 

For example, I lost my marriage to my 1st wife (1991) due mostly in part, to my addictive behaviors, which subsequently prevented me from providing financial support to her and my oldest children. Furthermore, my addiction caused major disruptions in all my family and personal relationships, and in the end; I lost my self-respect and self-worth. 

In the early 2000’s, I had a very powerful spiritual experience (that I know was God) that helped me to surrender and use courage and faith, which subsequently lifted my obsession to use drugs. After the obsession to use drugs was lifted, I made up my mind to take full responsibility and change my life. I decided to stop blaming others for my failures, my feelings, and my fears. With the help of a few friends in recovery and a mentor, I conducted painstaking and introspective work on myself, made amends to as many people as I could (especially my children and family members), and forgave myself. During the early course of my recovery from addiction, I realized that my past transgressions and addiction to drugs, led me to my true passion and purpose in life, which is to influence, inspire, encourage, teach, and help others suffering from addiction and human developmental struggles. 

In my efforts to become more effective at helping others I walked through my fears and went back to school in 2006 and earned an Alcohol and Drug Specialist Certificate from Glendale Community College in 2007 and became a Certified Addiction Treatment Counselor by the Addiction Counselor Certification Board of California & the California Alcohol and Drug Educators (C.A.A.D.E). In 2007 I attended Pacific Oaks College in Pasadena CA., and earned both my bachelor’s degree with a Specialization in Early Childhood Education (2010) and master’s degree in human development (2012). In addition, I also completed all the core course requirements in the Marriage and Family Therapy program before changing my major to Human Development. 

During my years in school I worked as a clinical director for two different drug and alcohol rehabilitation centers. I also worked as a substance abuse counselor at various mental health and substance abuse treatment centers working with adults and adolescents. I obtained certification as a personal fitness trainer and started my own fitness training business. 

In the spring of 2012, I was accepted to the Chicago School of Professional Psychology where I earned my Doctorate Degree in Clinical Psychology all the while maintaining a perfect grade point average of 4.0 throughout my entire school process.

Earning Professional Fitness Instructor and Trainer Certifications gives me a unique understanding of how to emphasize and integrate holistic health to patients. My areas of specialty are administration, psychoeducation, group and individual psychotherapy, family therapy and education, motivational speaking, life skills education, substance abuse counseling, communications skill training, twelve step education, specialized forensic mental health treatment, and health & fitness and nutrition consultation. 

“Let fear be what it is…but do not let fear determine who you are.”
Dr. Keith Marshall, Psy.D.,M.A., LAADC, SUDCC-IV-CS, C.A.TC.V


Dr. I. Lamport, MD

Medical Director/Consultant
Board Certified in Internal and Addictions Medicine

Dr Lamport, MD is Board Certified in Addiction and Internal Medicine, Certified by the American Society of Addictions Medicine, and a Diplomate of the American Board of Internal Medicine.  She earned her Medical Doctorate Degree from the Moscow Medical and Stomatolical Institute and completed her Emergency Medicine Internship in Moscow, Russia.

In 1990 She completed her Internal Medicine Residency at St. John’s Episcopal Hospital SUNY, Downstate which is one of the nation’s leading urban medical centers serving the community of Brooklyn New York since 1860.

In addition to treating patients here at Dedicato Treatment Center Dr Lamport is also affiliated with BHC Alhambra Hospital, Glendale Adventist Medical Center, and Aurora Las Encinas Hospital.

Dr. Raphael G. Johnson, Ph.D., L.C.S.W.

Clinical Supervisor and Mental Health Consultant
Licensed Clinical Psychologist
Licensed Clinical Social Worker

Dr Johnson is both a Licensed Clinical Psychologist and a Licensed Clinical Social Worker, specializing in Depressive Disorders. Dr Johnson earned a Bachelor of Science Degree in Anthropology and a Bachelor of Arts Degree in Black Studies from the University of California, Riverside.

Dr. Johnson continued to advance his education and earned a Master of Social Work from the University of Southern California (USC) Los Angeles, and his Doctor of Philosophy Degree in Clinical Psychology from Cambridge Graduate School of Psychology, Los Angeles California.​

Dr. Johnson brings a vast amount of education, experience, and guidance and direction, to Dedicato Treatment Center. In addition to his duties with Dedicato, he is also the President and Head Deacon of St. Paul Lutheran Church, Los Angeles.

Robert Snyder, M.A., MFT, LAADC, C.A.T.C IV

Mental Health Therapist
Addictions Treatment Counselor

Robert was born in Chicago, Illinois and spent his early life on the move, due to the demands of his father’s job.  At a very young age Robert’s 1st passion was his love for music. Robert’s talent for music led him to become a classical trained violinist which he later added the clarinet and electric bass.

Over the course of years as a musician Robert eventually found his way into the business world, doing commercial collections for Nestlé for 15 years.  During his time employed with the Nestle corporation Robert realized that he was also struggling with an alcohol addiction, which soon became evident to his employer due to his addictive behaviors.

After years of trying to stop drinking on his own Robert surrendered to the recovery process and overcame his addiction to alcohol. During his journey to recover from alcoholism Robert realized that he had a passion to help others overcome their own struggles with addiction.

In his efforts to help others Robert went back to school and earned his master’s degree in Marriage and Family Therapy and his Certifications in Addictions Treatment Counseling.

Today Robert brings to Dedicato Treatment Center many years of experience and education, and a true desire to help others.

Lilly Marshall, BS

Healthcare Administrator

Lilly Marshall was born and raised in the city of Pasadena, California. Lilly knows firsthand the negative ramifications of substance abuse because she grew up the child of an alcoholic father and then watched her husband struggle for many years with an addiction before he got clean and sober. After growing up witnessing and dealing with an alcoholic parent and then watching her husband suffer from addiction Lilly decided that she wanted to work in the field of addictions treatment in a supportive role.

In her efforts to grow and develop Lilly went back to school to Northwest College to earn a Certificate in Medical Insurance Billing, and to the University of Phoenix to earn both her Associate and Bachelors Degree’s in Health Care Administration.

Currently Lilly is the Corporate Secretary and Administrator for Dedicato Treatment Center, handling and coordinating all the administrative and secretarial functions.

Marie Peters Toltz, M.F.A

Master Degree of Fine Arts in Painting

Art Expressions

Marie PeterToltz is represented by Slag Gallery in Brooklyn (New York), Nanda/Hobbs in Sydney (Australia) and BMG Art in Adelaide (Australia). Peter-Toltz earned her Master of Fine Arts in Painting from the New York Studio School. She was awarded the New York Studio School Scholarship and the Concordia Awards, as well as the LCU Award for Women.

Born in France, she has exhibited in Australia, France and in the US. She was a finalist in various art competitions inAustralia including: the Waverley Art Prize and the Portia Geach Memorial Award as well as the recipient of an artist grant and residency through the Vermont Studio Center (US).

Her solo exhibition Tonight Think of Me at NANDA/HOBBS Gallery considers Homer’s Odyssey as a metaphor for our contemporary existence. Inspired by Jungian archetypal psychology, her paintings recall our inner entrenchments and imperfections while celebrating our life force, power, and willfulness. Les Amoureuses , a collective project in which the artists – Olivia Fougeirol, Francesca Gabbiani, Marie Peter-Toltz, Joséphine Wister Faure – come together and explore the subject of love as it resonates with them as female artists and mothers who chose Los Angeles as their muse. Last year, SLAG Gallery has showcased Peter- Toltz’s work during VOLTA BASEL in Basel (Switzerland) during ART BASEL.

The renown French Museum La Foundation Fernet Branca is currently exhibiting Peter-Toltz’s work as part of their exhibition project ‘POP ART’, the exhibition celebrates contemporary artists from the Rhine Region whilst inaugurating France’s opening post Covid-19.

Peter-Toltz is a devoted staff member of Dedicato Center (Los Angeles), where she uses her knowledge to inspire Dedicato’s patients during the different stages of recovery, inviting them to find their own unique voice through varied mediums and artistic expressions

Peter-Toltz sees the potency of sensuality through the medium of oil painting and its flesh-like texture. The act itself gives way to the abandonment of preconceived notions, and results in an unforeseen exploration of both the bold and the baroque. Her work is held in private collections in Australia, New Zealand, US, France, Danemark, Switzerland, Austria and the UK.


Brittany Hayes, LVN

Brittany Hayes, LVN

Licensed Vocational Nurse

Sheila Marshall, CADC-CAS, AFPA

Certified Alcohol Drug Counselor (CCAPP)
Certified Addictions Specialist (CCAPP)
Certified Yoga Instructor (American Fitness Professionals and Associates)
Certified Accessible Yoga Training (YACEP)

I first learned about yoga out of a book near the age of 13. I was naturally drawn to it because of my acrobatic back ground growing up at the Santa Monica beach. Years later as a Substance Abuse Counselor I started using breath and simple movements to prepare the group for class. This facilitated calmness from anxiety, which also helped the clients to stay present. That gave me the drive to learn more about yoga so I can expand my practice and to give this gift back to others.

I got certified as an accessible yoga instructor to be able to make yoga attainable for anyone with different capabilities. I now have the privilege to give substance abuse counsel and facilitate yoga here at Dedicato Treatment Center in Sierra Madre Ca.

Robert Mackey, CADC-CAS

Certified Alcohol Drug Counselor
Certified Addictions Specialist

William Mraz, RADT

Registered Alcohol Drug Technician

William first came to Dedicato Treatment Center as a patient suffering from a chronic opiate addiction.
During his time as a patient here at Dedicato Treatment Center William worked hard to develop the
necessary life and coping skills to sustain quality sobriety.

After completing the treatment program here at Dedicato William moved into sober living, obtained
Registration as an Alcohol Drug Technician and volunteered his time assisting and supporting staff and
patients. Due to his hard work ethic, and his compassion and empathy for the patients, William was hired as a full time Support Technician. William is now in the process of pursuing the education to become a Certified Addiction Specialist.
“Dedicato Treatment Center is a safe haven and place of hope for people suffering from addiction to
drugs and alcohol. I am grateful and proud to be a member of the Dedicato team”.


Yesenia Quesada, R.A.D.T.

Registered Alcohol Drug Technician

Caleb Pilant, R.A.D.T

Registered Alcohol Drug Technician

Licensed and Certified Independent Clinicians

Group Facilitation and Individual Counseling

In addition to our core clinical and administrative staff, Dedicato Treatment Center is dedicated to providing some of the best treatment options available. In addition to the “core” staff highlighted above, we also employ and utilize a number of Licensed and Certified Independent Clinicians for group facilitation and individual counseling.

Dedicato Treatment Center is dedicated to caring, and seriously committed to providing treatment that will enhance our patient’s ability to achieve optimal mental health and recovery from chemical dependency.

We accept most insurance plans