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Nancy Gordon, LCSW

Phone: (813) 480-8482
Fax: (813) 651-4402
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Nancy Gordon

  • Florida Licensed Social Worker SW 7952
  • Qualified Supervisor for Florida Registered Interns and MSW students.
  • Bachelor of Arts in Psychology, Cum Laude University of Massachusetts, Amherst, Mass. 1980
  • Simmons College School of Social Work, Boston, Mass.  1984
  • Intensively trained in DBT 1998
  • DBT-Linehan Board of Certification, Certified Clinician™  2015


Nancy Gordon is a Licensed Clinical Social Worker and Qualified Supervisor who has over 30 of experience working with children, teens, adults and families in hospital, DJJ, residential and Community Mental Health Center outpatient settings. She received her MSW in Boston, lived and worked in Vermont for 30 years and was recruited to the Tampa Bay Area in 2005.  For the majority of the last 21 years, Nancy served as Clinical Director to several programs in Vermont and Florida. She has been supervising and training staff and students for over 25 years. Nancy is an accomplished speaker, presenter and trainer locally and nationally on a wide range of clinical topics.

Nancy completed the Intensive Training in Dialectical Behavioral Therapy in 1998, was the first Linehan Board Certified Clinician in Florida in 2015 and has helped train and implement DBT programs in many settings. She is nationally known for her work in adapting DBT to adolescents and had input into the adaptation of DBT to Adolescents, published by Alec Miller and Jill Rathus. She is a Cognitive Behavioral Therapist who has specialized in treating the most seriously disturbed adolescents and their families on all types of issues, including suicidal and self-harming behaviors, anger and behavioral problems, substance abuse, eating disorders, anxiety and social problems, mood disorders, school problems, ADHD, and parent training and she provides an array of evidence-based therapy models.

In 2010 Nancy founded Tampa Bay Center for Cognitive Behavior Therapy (TBCforCBT) which is a private practice and training center for new therapists, that provides outpatient evidence-based CBT and DBT therapy for adults and adolescents.  She also provides clinical supervision for registered interns and MSW students, and agency or community consultations and trainings.  Her mission is to improve the quality of life for individuals and their families by providing access to effective, evidence-based behavioral health treatment.  Her vision is to provide exceptional training, consultation and therapy to clients, therapists and agencies. TBCforCBT offers one of the only fully adherent DBT programs in the Tampa Bay area.


Sarah Coker, LCSW

Phone: 813-480-8482
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Sarah Coker

Sarah is our most senior clinician at TBC for CBT, having been here for 6 years, since 2014.  Sarah received her License as a Clinical Social Worker in 2014 and has been a part of the TBCforCBT team since 2012. She completed her Bachelor’s Degree in Psychology from the University of South Florida in December 2008.  After that, she pursued and received her Master’s in Social Work from Tulane University in Louisiana. Sarah has worked with clients suffering with severe and persistent mental illness in their homes and on inpatient units.  She has done extensive training at TBCforCBT and other intensive trainings to provide DBT and evidence-based treatments to teens and adults in an outpatient setting.

Valerie Siegman, LMFT, LMHC

Phone: 813-255-4180
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Valerie Siegman

We are lucky to have had Valerie with us at TBC for CBT since 2016.  Valerie received her BS in Occupational Therapy in 1986 from the Univ. of Buffalo, NY. She worked for 8  years providing rehabilitation services to clients suffering from neurological injuries at places like the Rusk Rehabilitation Center and NY Hospital.  She received her MA in Mental Health Counseling with a Certificate in Marriage and Family Therapy from the University of South Florida in May 2016. During her graduate studies, she did her practicum and internship at TBC for CBT and is now a Registered Intern under the supervision of Nancy and Jeanne Peterson, Psy.D.  She has been involved in many professional trainings including: Emotionally Focused Couples therapy and the Gottman  Couples Therapy Trainings , Levels 1 and 2.  She has been trained in DBT and other evidenced-based treatments at TBC for CBT and is an active member of Practice Ground DBT learning community.  Valerie is the proud mother of Three young adults. She enjoys traveling on hiking trips with her husband of Twenty Five Years.

Heidi Sosa, Registered Clinical Social Work Intern

Phone: 813-499-7512
Fax: 813-654-3033
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Heidi Sosa

Heidi started working and training at TBC for CBT in September, 2019.  She is currently a Registered Clinical Social Work Intern  working towards state requirements for licensure. She received her A. S. in Human Services and Counseling at Hillsborough Community College, Tampa Florida in 2014. In April of 2016, she received an undergraduate degree in Social Work from Saint Leo University, San Antonio Florida. While pursuing a graduate degree, Heidi worked for the Department of Children and Families as a Dependency Case Manager. In August 2018, she completed her Masters in Social Work (Specialization in Advanced Clinical Practice) at Saint Leo University, San Antonio, FL and shortly after gained employment as a Clinical Therapist at a Residential Foster Home specializing in Adolescents in Motherhood.

Heidi has over 6 years experience working for non for profit organizations in the Tampa Bay Area that include Head Start, The Crisis Center of Tampa Bay, Lutheran Services and Paxen (DJJ Diversion Program)

Heidi ‘s passion is to someday implement DBT in Middle School and High Schools in Hillsborough County as a required core elective.

Her training and skills that she brings to TBC for CBT include working with Trauma related conditions, using Trauma Focused Cognitive Behavior Therapy, (TF-CBT).  Social Work Deployment Working with Military Families; Child Abuse and Neglect, Trust Based Relational Intervention; Nurturing Parenting Program Facilitator, DBT.

Katrina Ausley, LCSW and Vash our therapy dog

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Katrina Ausley

Katrina Ausley has been working and training at TBC for CBT since 2017. She received her undergraduate degree in Sociology and Criminology from Stetson University in 2013. After graduation, Katrina, who has practiced yoga for more than a decade, was trained extensively as a yogi and studied mindfulness and yogi practices in Denver, Colorado.  She completed her Master’s in Social Work, at the University of South Florida, Tampa campus, in 2018, during which she completed an intensive internship at TBC for CBT under the supervision of Nancy Gordon, LCSW, who remains her mentor and supervisor.

Katrina is passionate about helping others and combines her commitment to helping those in need of services with her passion for mindfulness and meditation. Katrina’s techniques and sessions sometimes include Vash, a certified Emotional Support Animal who is currently training to be a therapy animal.

Christine Barker, LCSW

Phone: 727-480-9534
Fax: 813-654-3033
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Christine Barker

Licensed Clinical Social Worker and Qualified Supervisor, State of Florida, SW3608

Licensed Clinical Social Worker in New York State, License Number 087305-1

Christine V. Barker is a Licensed Clinical Social Worker in the states of Florida and New York with specialized training in Dialectical Behavior Therapy (DBT).  She has over 20 years in clinical social work and management in New York City and Florida in settings that include outpatient and emergency mental health; day treatment; foster care; juvenile justice; residential treatment; and runaway and homeless youth programs.  Originally from Brooklyn, NY, she has a bachelor’s degree from Barnard College and a master’s degree in social work (MSW) from Hunter College in New York City.

Christine was trained in DBT as a therapist with the New York State Office of Mental Health Intensive Day Treatment program in Brooklyn, NY, completing the 10-Day Core DBT Clinical Training in 2014.  She was part of a team that implemented DBT skills training in the daily community meetings with youth ages 8 to 18 with serious mental health problems including anxiety, depression, aggressive behaviors, hyperactivity, emotion dysregulation, and difficult family situations.

Christine joined TBC for CBT in April 2017.  She is committed to ongoing professional education and development, and has recently completed the following trainings:   Intensive Training in the DBT Prolonged Exposure Protocol for PTSD (Melanie Harned, PhD) in October 2018; Working with Emotion Dysregulation in Families (Alan E. Fruzzetti, PhD) in March 2019; DBT Skills online course (Marsha M. Linehan, PHD) in September – October 2019; and DBT Advanced Training (Nancy Gordon, LCSW) in October 2019.


Alexandra Pellot, Registered Clinical Social Work Intern

Phone: 813-480-8482
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Alexandra Pellot

Alex is a registered clinical social work intern therapist at TBC for CBT who started as an intern in January 2019. She received her Master’s in Social Work and undergraduate degree in Psychology and Criminology at The University of South Florida. Alex has experience as a Sexual Assault Victim Advocate at the Crisis Center of Tampa Bay where she provided crisis intervention, information and referrals, emotional support and responded to forensic medical exams 24/7 for survivors of sexual violence. She has additionally worked as an on-call advocate at USF in the Center for Victim Advocacy where she assisted with calls on the emergency line providing safety planning for people who have experienced any type of crime. In her free time, she volunteers in the community as a Guardian ad Litem Volunteer where she advocates for the wants, rights, and needs of children who have experienced abuse, neglect or abandonment.

Some of Alex’s interests include eating food from different countries all over the world and helping animals. She is passionate about helping others, DBT, and continuing her work with people who have experienced trauma by becoming a Licensed Clinical Social Worker.

Tracy Doering, Social Work Student

Phone: 813-480-8482
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Tracy Doering

Tracy started her internship at TBC for CBT in January, 2020.  She received her bachelor’s degree from Florida State University and is currently pursuing her Master’s in Social Work from The University of South Florida. She has 3 years of experience as a crisis counselor and serves populations in the Tampa area as a student counselor at USF’s Bridge Clinic. Tracy’s interest in mindfulness has led her to study with several meditation teachers across South America and Europe before beginning her graduate program. She is excited about integrating this interest with her passion for helping others find greater well-being through DBT, and is currently completing an intensive internship at TBC for CBT under the supervision of Christine Barker, LCSW and Nancy Gordon, LCSW. In her free time, Tracy enjoys playing the guitar, singing, and spending time in nature.