Healing Arts Team

Dr. Thelma Tennie, PhD,

Certified Clinical Sexologist, LMFT

Dr. Thelma Tennie, Licensed Marriage and Family Therapist (LMFT), and Certified Clinical Sexologist is the owner of a successful private practice, Dr. Thelma Tennie and Associates, LLC. She is licensed in Florida, Ohio, Maryland, and Washington DC, her hometown.

As a licensed practitioner she assists business professionals and couples in managing life’s daily stresses and debilitating anxieties. Her areas of expertise include sexual trauma, relational/sexual satisfaction, polyamory, sexual dysfunction, and infidelity.

In 2015 Dr. Tennie founded a 501(c)(3) non-profit organization, Healing Arts Institute of South Florida International, Inc. where she supervises and mentors masters and PhD level therapists. Healing Arts also provides mental health services for children at no-cost and offers a sliding fee scale for adult clients. As Chief Executive Officer (CEO) of Healing Arts Dr. Tennie strives to deliver on its mission of “Inspiring Hope, Health, & Mental Well-Being”.

In 2020 Dr. Tennie founded Healing Arts Institute of Clinical Sexology, a graduate institution of higher education. This institute is approved by the Florida Department of Education to Provide a doctoral degree (PhD) and Certificate in Clinical sexology. The residential program offers an affordable doctoral degree and certificate allowing greater access and training to Master level licensed therapists across the country.

Dr. Tennie holds a bachelor’s in Psychology, a Master of Science in Marriage and Family Therapy, a PhD in Clinical Sexology, and completed all course work for a second PhD in Marriage and Family Therapy (All but Dissertation).

Dr. Tennie has over eleven years of experience providing trauma therapy and over ten years’ experience in research on the early diagnosis, treatment, and importance of early psychoeducation regarding autism.

Dr. Tennie’s wide-ranging interests have led to studies in Cognitive Behavioral Therapy, Early Childhood Sexual Education and a previous certification as a Broward County certified school teacher in adult Social Science. In 2016 and 2017 she was nominated by Nova Southern University as alumni of the year.

She has presented internationally at The Normal University in Beijing, China, on the prevalence of autism in the US and China; at The National Sex Conference in Munich Germany, on Polyamorous systems; and Nationally at The Association of Black Sexologists and Clinicians and Columbia College Chicago on Sex Education, and St. Thomas Virgin Islands on polyamorous systems.

Dr. Tennie is a Florida state Qualified Supervisor for Licensed Marriage and Family Therapist Interns and Licensed Mental Health Counselor Interns. She is a professional member and approved supervisor of the American Association of Marriage and Family Therapist (AAMFT), the Association of Black Sexologist and Clinicians, the International Society for Sexual Medicine (ISSM) and the American Board of Sexology (ABS).

Most recent, she is co-author of a couples workbook for pre-marital counseling and for those couples wishing to get their existing marriage or relationship on track. “Our marriage business plan: A complete workbook to learn yourself and your partner,” available on Amazon.

Gabrielle “Gabby” Carey-Johnson


Gabrielle is a license candidate for both Mental Health Counseling and Marriage and Family Therapy, with a specialization in Infant and Maternal Mental Health. She has earned a bachelor’s degree in Family Youth and Community Sciences, a master’s degree in Human Services with a specialty in Juvenile Justice System and is on track to complete her PhD in Marriage and Family Therapy (ABD).

For close to 10 years, she has worked as a family therapist in the South Florida area. Gabrielle is trained in various disciplines including Child Parent Psychotherapy (CPP) and Trauma Focused Cognitive Behavior Therapy (TF-CBT). Gabrielle presented at the International Family Therapy Association’s 25th World Congress on exploring adolescent relationships and their systemic influence on decisions made.

Gabby volunteers ten hours of therapeutic services per week at Healing Arts Institute, and has a private practice – Gabby Cares of South Florida.

Dr. Debra Harris


Dr. Harris has more than 40-years of experience in church, community, education, and corporate interfacing. She has inspired thousands, nationally and internationally, with her inclusive approach to relationships, classroom instruction, community-building, and leadership training.

She founded the How-to-Love Movement and created The Transformative Relationship Training Curriculum, to help individuals, groups, and business organizations transform their relationship with themselves and their colleagues. 

Dr. Harris has appeared on CNBC, FOX, and other local, regional and national media (e.g., BET, VHS) showcasing her expertise as a relationship professional and/or diversity and inclusion expert.

As an inclusion and diversity researcher, instructor, curriculum developer, and inclusion trainer, Dr. Debra aspires not only to making a difference in the organizations she serves; she seeks to transform the world using her innovative therapeutic curriculum ‘How-to-love’. 

To connect with Dr. Harris, email: drdebra@howtolove.us, visit website: www.howtolove.us,  or phone: (800) 361 9068

Giancarlo Simpson


Giancarlo Simpson is a Licensed Mental Health Counselor and is in his last year of his Ph.D. program in Marriage and Family Therapy. Giancarlo’s therapeutic focus is with non-monogamous relationships. He holds a master’s degree in Applied Psychology – Counseling Program at Lynn University.

He has taught courses in psychology and sociology at The Sigma Institute of Health Careers and is currently a full-time faculty member at Lynn University. His experience working with adolescent teens and their families comes from a therapeutic and academic background while serving as a psychology teacher. He is an ally who has experience working with the LGBTQ+ population.

Intern Therapists

Sabrina Cadet

Intern Therapist

Sabrina is a Florida Registered Marriage and Family Therapist Intern and a student member of the American Counseling Association (ACA) who has trained under Dr. Tennie for two years and has over five years experience working with children, adolescents, and adults.

She believes that it is vital to provide a safe space where clients can be vulnerable and transparent, where they can participate in real dialog to grow and overcome the challenges they face.

Sabrina holds a bachelor’s degree in Psychology, and Master of Arts in Marriage and Family Counseling.

Tishiro Hanley

Intern Therapist

Tishiro holds a Bachelor of Arts in Psychology and is currently pursuing a Master of Science in Marriage and Family Therapy/Counseling and has 5 years of experience in Social Work working for the Department of Human Services Division of Juvenile Justice Services in The United States Virgin Islands Superior Court Family Division.

She is a member of the Counseling National Honor Society and Chi Sigma Iota (CSI). She has been president of the Psychology Student Association, member of the environmental club, a research assistant at Temple University in Philadelphia, and has presented at U.S. Virgin Islands University, St. Thomas Campus’ thirteenth Annual Fall Research Symposium in 2011.

Safiyah Singleton

Intern Therapist

Safiyah Singleton is an intern and student therapist at Nova Southeastern University where she is completing a Masters in Couples and Family Therapy. Safiyah has a Bachelor of Science in Social Work and is proficient in case management and counseling.

She has worked with the Department of Juvenile Justice for over five years as a youth counselor and mentor. Safiyah has experience as a biblical counselor and is a member of Delta Kappa, the International Marriage and Family Therapy Honor Society.

Grettel Romero

Intern Therapist

Grettel Romero is a student therapist at Nova Southeastern University currently working towards a Master of Science in Couples and Family Therapy. She holds a Bachelor of Arts in Psychology and is certified in Diverse Identity Inclusion Training.

Grettel strives to create a safe and comfortable environment where clients can feel truly heard and motivated to collaboratively work in the therapeutic process. She purposefully incorporates multicultural concepts in therapy because she believes that culture deeply impacts how we interact with ourselves and others.

Makerria Stroud

Intern Therapist

Makerria holds a Bachelor of Arts in Psychology and is working towards earning a Master of Science in Marriage and Family Therapy. She is an MFT-School Intern at Healing Arts Institute of South Florida.

She has been on active duty in the United States Navy for over 12 years serving in the United States, Middle East, and Europe. She has been a Department of Defense Sexual Assault Victim Advocate for the past 8 years, assisting Marines and Sailors who have been victims of assault, as well as providing education on sexual assault prevention.

Makerria is creating a platform called Uncomfortable Conversations, a roundtable format that allows people from different backgrounds to discuss racial topics that otherwise would be difficult to have.

Jerry Ulysse

Intern Therapist

Jerry specializes in marriage and family therapy and has provided counseling and therapeutic services for children, teens, and adults.

He has worked with a diverse range of clients helping to remove the stigma affiliated with receiving mental health therapy and showing his clients how effective therapeutic treatment can be.

Jerry provides his clients with goal-directed therapy, focusing the conversation towards developing effective solutions to help his clients make a brighter future for themselves.

George Messiha

Intern Therapist

George is an intern and student therapist at Capella University where he is completing a Master of Science in Marriage and Family Therapy.

George has experience working with diplomatic corps in the Middle East and is fluent in Arabic and English. Over the past 16 years, he lived in the United Arab Emirates and worked with colleagues and clients from many different nationalities and cultures.

Healing Arts Business Staff

Juanita Williams

Executive Assistant / Office Manager

Juanity spent two and a half years in Thailand working as a teacher, cultural instructor, and an editorial assistant at an English language newspaper. Because of her studies and life experiences, Juanita understands that there are subtle nuances inherent in every culture and how important cultural knowledge is when interacting with others.

She has 15 years’ experience in logistics, project management, compliance, and graphic design. Her diverse work experience gives Juanita the skills needed to manage and maintain the administrative and compliance aspects of the office.

David Davenport M.S., M.B.A.

Director of Business Development

David brings an eclectic range of experience to Healing Arts Institute, from television production to medicine. He earned his B.S. in Biological Sciences graduating Summa Cum Laude with honors and is published in the field of molecular genetics for his work in gene mapping. His graduate education includes a Master of Science in Integrated Marketing Communications, a Master of Business Administration, and a graduate certificate in Project Management.

He matriculated into medical school in 2015, and he left after completion of his second year to open his consultation business .

He is currently a consultant and founder of Aurora Blue, specializing in business development, brand strategy, technology development, and content creation for businesses in the healthcare and allied health industries.

He is proud and excited to work with Healing Arts Institute as they grow to become one of South Florida’s most trusted practices in mental health therapy.

Healing Arts Institute Board of Directors

CEO: Dr. Thelma Tennie, LMFT
COO: Gabby Carey-Johnson


CHAIR: Johnniya Hamilton, LMFT
VICE CHAIR: Dr. Kevin Johnson
TREASURER: Eddie Tennie Jr.​
SECRETARY: Sherri-Ann Grant-Clarke, Esq.
Officer: Renee Peterson
Officer: Laura Dolin Esq.