Nielly Melville, BSN

Nielly is a skilled medical professional and has been with the agency since its inception. She has a passion for helping others and giving clients both physical and emotional support with optimal client care being her number one priority. Nielly encourages her staff to provide our clients with a safe and caring environment to detox comfortably at their own pace. She enjoys witnessing the positive physical progression and emotional growth that our clients go through from admission to discharge. Nielly is driven to learn more about addiction and its impact on our society by witnessing first-hand the effects of physically preparing our clients for the next step on their road to recovery.

In her current role as the Director of Nursing, Nielly is responsible for the overall development and operation of the clinical nursing program. She works closely with the medical director for psychiatric and medical management of the clients. She collaborates with physicians, consultants, community agencies, and institutions to continually develop and improve the quality of services to Serenity House Detox’s clients.

Nielly graduated Magna Cum Laude with a B.S. Degree in Nursing from Florida International University and a Master’s of Science in Nursing from Barry University. She is also a Certified Addictions Nurse Practitioner that has extensive experience in the Mental Health and Detox setting.


Lisa Sheehan serves as the Clinical Director for Serenity House Detox.

Lisa is a highly skilled, compassionate, empathetic and client-centered counselor dedicated to the treatment of persons experiencing drug and/or alcohol abuse. She takes a holistic approach with clients that is centered on reducing anxiety, relapse prevention, and manifesting goals through positive projection.

Lisa encourages her staff to express empathy and compassion for our clients. She understands that the road to recovery is a long and arduous one filled with anxiety. She advocates the daily practice of yoga and meditation to overcome anxieties present through spiritual solutions.

In her current role as Clinical Director, Lisa is responsible for the overall development and operation of Serenity House Detox’s clinical program. She works closely with all clinical staff to ensure that clients are receiving an appropriate level of treatment. Lisa continually seeks to develop and improve the quality of the therapeutic services offered at Serenity House Detox.

Lisa holds a B.A. Degree from St. Ambrose University, is a Certified Addictions Professional, and has over five years of experience working in addiction treatment. She is also certified in Transformational Meditation and has a background in using specific meditation techniques to reduce anxiety and manage addiction cravings. Lisa is also trained in Neuro-Linguistic Programming in her pursuit of improving her abilities to communicate and connect with her clientele.

Geoffrey Hyser
Operations Manager
I was born in Chicago and moved to S. Florida when I was 3. I am the youngest of 2 children. I grew up in the Ft. Lauderdale area and was a fairly good student, unlike my older brother. I played baseball for 2 years. When my parent got divorced I started following in the footsteps of my older brother, skipping school and smoking pot, and eventually got kicked off the team for fighting. At age 14 I began smoking crack with my older brother and the rest is history. I went to 4 Tx centers before the age of 18. Once I was off of my parents insurance it was jails and state ran facilities. In 2010 I detoxed twice in jail. December 13, 2010 is my sobriety date. I am now married and have 3 children with my lovely wife. I now have a relationship with my other 2 children who were sent to live with their grandparents at birth due to my addiction. I am obviously employed at SHD and have been for the past 8 years. I am blessed beyond words to be where I am today. It is a far cry from where my life was 10 years ago.