Behavioral Health

Behavioral Health Services

Our Behavioral Health providers are prepared to support clients of all ages, addressing a wide range of challenges. We work alongside medical providers to integrate care for the body and mind with treatment plans tailored to each client or family’s individual needs. Our goal is to assist and empower our clients to tackle and overcome their personal struggles and improve their quality of life.


Our counseling services help patients with a variety of issues, spanning from mental health and wellness to career goals. These services are best suited for patients seeking the help of professionals to overcome specific obstacles in their lives. We pair each patient with a health provider who works with them to:

  • Establish appropriate goals
  • Identify possible solutions
  • Develop coping skills
  • Provide ongoing support

In many cases, patients can use what they learn in counseling to manage or resolve current issues as well as maintain better mental health moving forward.

Stress Management

Patients who find that stress interferes with their ability to live life normally can benefit from stress management. When someone experiences an unhealthy amount of stress, they may struggle to cope with their usual activities, tasks, and responsibilities, making it difficult for them to experience any happiness in their lives. Often, this stress stems from a mental illness, physical condition, or experience in the patient’s life, such as:

  • Depression or anxiety
  • Post-traumatic stress disorder (PTSD)
  • Loss of a loved one
  • Chronic or severe illness, disability, or pain
  • Financial issues

Anyone who feels overwhelmed by stress can take advantage of our stress management services. We teach patients techniques for dealing with stress and reclaiming control over their lives.

If you or someone you love is actively suicidal, feel free to call the National Suicide Prevention line at 1-800-273-8255 or chat online now at

What to Expect

Call our Behavioral Health Coordinators who will arrange for an intake appointment. At your intake you and your provider will create a treatment plan focused on your needs. We accept most private insurances, Medicaid, Medicare, and have discount fee program for those without insurance. Services are available in English, Spanish, French and Creole.

Meet Our Providers


Ramfis Marquez, PhD, LPC
Behavioral Health Director

Dr. Ramfis L. Marquez is the Director of the Behavioral Health Department. He holds a Doctorate in Clinical Psychology and is a Licensed Professional Counselor in the State of Virginia. Dr. Marquez studied at Walden University and Inter American University of Puerto Rico and has worked in the field of mental health for 17 plus years. He has specialized experience working with Children, Adults, Geriatrics, Individual, Couples and Families in both English and Spanish. Dr. Marquez has developed expertise in the areas of Trauma, ADHD, Asperger’s Disorder (Autism Level 1), Depression, Anxiety and other DSM disorders. Dr. Marquez approaches therapy from a holistic perspective, using techniques from client focused, humanistic, motivational and reality based therapies.

In his free time, Dr. Marquez enjoys reading, music, history, stand up paddle boarding, cooking, dancing, playing the guitar, sports cars, martial arts and Science Fiction.

Fluent in Spanish.

Zaida Dayton, LPC, CCMHC, NCC
Behavioral Health Clinical Supervisor

Zaida I Dayton is the Clinical Supervisor for the Behavioral Health Department and a bilingual Behavioral Health Consultant.  She is a Certified Clinical Mental Health Counselor through the National Board for Certified Counselors (NBCC), is a Licensed Professional Counselor in the state of Virginia, and a Licensed Mental Health Counselor in the state of Florida.  Mrs. Dayton obtained a Master of Science in Mental Health from the University of Phoenix and has counseled professionally for over 6 years. Mrs. Dayton enjoys working with children, adolescents, adults, geriatrics, individuals, couples, and families and provides these services in both English and Spanish.  She specializes in the treatment of trauma, ADHD, anxiety, depression, eating disorder, grief, relational problems, and other disorders.  Mrs. Dayton’s goal is to empower clients to make behavioral choices that will create the necessary changes to improve their quality of life. She employs techniques from Choice Theory/Reality Therapy (CTRT), Cognitive Behavioral Therapy (CBT), and completed a Level 2 training on Gottman Method to Couples Counseling.

In her leisure time, Mrs. Dayton enjoys playing volleyball, running, music, going to the movies, and spending time with family and friends.

Fluent in Spanish.

Jean-Andre Constant, LCSW, CSOTP
Behavioral Health Consultant

Jean-Andre Constant is a highly skilled multilingual and forensic clinician certified as a Sex Offender Treatment Provider with the Virginia Board of Psychology. He obtained his education through a Master’s in Social Work from the University of Puerto Rico, Rio Piedras Campus and a Bachelor’s of Arts in Human Services from Université d’Etat d’Haïti. Mr. Constant also completed a postmaster’s certificate in clinical supervision at The University of Connecticut School of Social Work. He carries a solid background providing behavioral health services stemming from his education and a variety of practice settings and areas of intervention. His expertise and scope of practice include psychosexual and re-offense risk assessment, sex offender treatment and relapse prevention services to both juvenile and adults, mental health evaluation, psychotherapy and emotional hardship reports on clients experiencing acute life stressors. Mr. Constant trained in trauma-informed care and he adheres to the CBT premises, showing a close connection between thoughts feelings and behaviors. He values reality/choice therapy, stressing self-evaluation and personal commitment to changes and promotes healing from trauma by encouraging grounding, safety and self-efficacy.

Mr. Constant favorite activities include traveling, watching nice movies, reading, and listening to music (jazz, blues and classical).

Fluent in Spanish and French Creole.


Patricia Crosby, LPC MEd
Behavioral Health Consultant

Ms. Crosby is a native from Peru. She graduated with honors as a Licensed Clinical Psychologist at the Ricardo Palma University, Lima, Peru in 1996. She immigrated to the United States in 2001 and started working with at-risk youth, providing intensive counseling services for over 10 years. She obtained a Master’s degree in Counseling / Community Agency track at George Mason University, Fairfax VA in 2012. Ms. Crosby has been working in private practice since 2013 obtaining her License Professional Counselor (LPC) in 2016.

Ms. Crosby provides individual and couples counseling to clients dealing with: acculturation issues, anger problems, anxiety, depression, academic problems, lack of social skills, interpersonal challenges, ADHD, parenting, divorce, and Psycho- education among others.

Fluent in Spanish.

June Toth, LPC
Behavioral Health Consultant

June Toth is a Licensed Professional Counselor in the Commonwealth of Virginia. She holds a M.A. in Clinical Counseling and completed her undergraduate with a major in Psychology, magna cum laude, at Regent University. June has over 20 years of experience working with adults, children, and adolescents through academic instruction, mentorship, group facilitation, and clinical counseling. She supports clients and their families with both situational and chronic issues of depression, anxiety, social/relational dynamics, personality disorders, cognitive deficits, and socioeconomic challenges.

June ascribes to a holistic approach, integrating models of counseling that address mind, body, and spirit. She views the counseling session as a sacred time of self-discovery, healing, and growth.

June enjoys spending time with her family, journal writing, reading (especially inspirational biographies and literary classics), fitness, and the beach. 

Maureen Romano, LCSW
Behavioral Health Consultant

BMaureen Romano is a Licensed Clinical Social Worker with over 20 years’ experience working with children, adolescents, and families in the school and residential settings. Maureen earned her Master of Social Work from The University of Maryland and an undergraduate from Virginia Tech.

Maureen has worked with individuals, families and couples dealing with anxiety, depression, ADHD, trauma, social challenges, grief and loss and other disorders and issues. Maureen incorporates a multimodal approach to treatment to help empower the client to move forward.

Maureen enjoys spending time with her family, in addition to swimming and walking.

Stephen Andrews, MSW
Supervisee in Social Work

Stephen completed his Masters in Social Work with a concentration in clinical practice from George Mason University in 2020, his Bachelor’s Degree in Psychology from George Mason University in 2017, and his Associates Degree in Business Administration from Northern Virginia Community College in 2014.

During his graduate studies, he interned as a behavioral health consultant here at the Greater Prince William Health Center and the Mason and Partners Clinic, as well as a juvenile probation officer at the Virginia Department of Juvenile Justice, where he developed a passion for working with at risk youth. Stephen emphasizes the mutual development of unique goals tailored to the individual needs of the client, as well as utilizing a strength’s-based approach to empower each client in the therapeutic process. He incorporates a variety of treatment modalities, including Cognitive Behavioral Therapy, Dialectical Behavioral Therapy, Solution Focused Therapy, Motivational Interviewing, and Reality Based Therapy. Recognizing the ethnic diversity of Northern Virginia, Stephen brings a culturally competent approach to foster a safe and genuine environment for each of his clients. Stephen works with children, adolescents, adults, and families. Prior to returning to GPW, he worked for a year and a half at Occoquan Counseling, LLC in Woodbridge, VA.

In his spare time, he enjoys golfing, spending time with his family, traveling, and cheering on his beloved Philadelphia Eagles.

Francisco J. Cornejo, QMHP-A&C, MSW, CPT
Supervisee in Social Work

Francisco J. Cornejo completed his B.S. in Psychology from Virginia Commonwealth University and continued his education at George Mason University, as he pursued a Master's degree in Social Work. Francisco has focused his work on trauma and recovery within the Latinx and migrant community by delivering behavioral health services in community health centers located in Prince William County. Francisco additionally has worked to increase the participation and collaboration among various community entities to aid in increasing access to necessary resources for the Latinx community.

In his free time Francisco likes to do wood working, restoring old technology, building computers, riding motorcycles, and fixing cars.

Fluent in Spanish.