Addiction therapists & psychiatrists in Port Charlotte, FL

Hi, I’m Casey. As a board-certified Psychiatric-Mental Health Nurse Practitioner (PMHNP-BC) and the founder of Nexus Psychiatric Services, I built this practice for people seeking exceptional clinical care from an approachable, down-to-earth provider.

My professional foundation comes from my years of experience in the acute inpatient psychiatric setting. Navigating these high-intensity settings taught me to bring calming stability to those who are struggling, and I carry that into every outpatient telehealth visit. Today, my practice supports adults, adolescents, and children ages 6 and up through the everyday challenges that arrive when living with diagnoses such as anxiety, depression, and mood disorders. Beyond general psychiatric care, I offer a deep clinical commitment to neurodivergent individuals and those suffering from identity issues. Whether you are feeling exhausted by life, exploring your identity, or trying to help your child thrive, you are welcome to show up to our sessions exactly as you are.

I am a kind, open-minded person who genuinely values listening and understanding others. I believe that some of the most meaningful connections begin with simply feeling heard. I have an extensive background and passion for psychology, and I am endlessly fascinated by the brain, the mind, and how deeply connected they are to our emotions, behaviors, and overall well-being.

Outside of my professional life, I enjoy spending time with my family, playing with my cats, and traveling whenever I get the opportunity. I naturally enjoy helping others navigate life’s challenges, whether that involves problem-solving, relationships, emotional struggles, or finding new perspectives during difficult times. Helping people better understand themselves and move toward healthier, more fulfilling lives is something that brings me genuine purpose.

I also hold a special passion for supporting our military, veterans, and first responders. Being married to one has given me a deeper appreciation and understanding of the sacrifices made by these individuals and their families. I believe the men and women who have served and protected our country are among our nation’s greatest assets, and I feel deeply committed to helping support their mental health, resilience, and quality of life as they continue carrying burdens many others may never fully understand.

I’m Seth Watson, a Psychiatric Nurse Practitioner dedicated to helping you find balance and resilience. I pride myself on offering an easy, stress-free demeanor that makes it simple to talk openly. When it comes to medication management however, I get right down to business. I focus on addressing the problem with strong, evidence-based results, and I will always utilize a collaborative approach to ensure that every decision about your care is one we make together.

Danielle Robertson is a Licensed Clinical Social Worker (LCSW) in the State of Florida. Danielle earned both her undergraduate and graduate degree at the University of South Florida in Social Work with a concentration on adoptions.

A Florida and Polk County native, Mirtha is a graduate of Frostproof High School. She is board certified as both a Psychiatric Mental Health Nurse Practitioner and an Autonomous Primary Care Nurse Practitioner. She earned a Bachelor's of Nursing from Polk State and a Master's of Nursing from USF. In 2023 Mirtha earned a Post Master's Certification in Psychiatry from Florida Atlantic University. However, her journey as a mental health provider began in 2020 when she became certified through the Academy of Christian Counseling, as a mental health coach. Then in January of 2025 she became an active member of the Order of Saint Luke (OSL) a healing ministry.

Mirtha has nearly 20 years of experience in healthcare. Her passion is caring for individuals struggling with mental health issues. She has been volunteering with the youth in her community for over 7 years and also has experience working in a domestic violence shelter with victims of trauma.