Serenity Springs - Addiction Treatment Team - Central Florida

Treatment Team


Our experienced and dedicated Medical and Clinical staff provide exceptional, one of a kind treatment for the mind and body.

Dr. James Meredith, MD

Provisional Medical Director

Dr. James Meredith is a graduate of the University of South Florida, for both his Bachelor and Medical degrees, graduating with honors. His residency was also conducted at the University of South Florida. He has practiced General Practice Medicine, Addiction Medicine, and Interventional Pain Management for the last 6 years. He is happily married with 2 children, and resides in New Smyrna Beach, FL. Dr. Meredith has worked in many settings over his time practicing, including the FL State prison system, Private Practice, as well as with multiple Interventional pain facilities. He has written numerous papers and conducted research regarding Opiate Dependency and treatment. He enjoys cooking gourmet meals and spending time with his children and loved ones. His philosophy of addiction treatment is that no two patients are alike and that treatment should be all encompassing including traditional western medicine, alternative treatments, behavioral therapy, and 12-step principles.

Ellis Fort, PA-C

Certified Physician’s Assistant

Ellis is a Certified Physician Assistant, and has practiced for 6 years in General Practice Medicine. He has specialized in Addiction Medicine and Interventional Pain Management for the last 3 years. He has an undergraduate degree in Psychology from the University of Central Florida, graduating with honors. He continued with courses in Pre-Med to later complete his education at Nova Southeastern University with a Masters in Medical Science, Physician Assistant Studies. He is happily married and lives with his wife and children in the New Smyrna Beach area. He is also a professional wakesurfer, spending most weekends on the water with his friends and family. He has a strong belief that people must be treated as a whole, mind, body, spirit. Recovery from addiction includes the recovery from the physical self as well as the emotional/psychological and spiritual self.

Dr. Derrick DeSilva Jr., MD

Medical Advisor

Dr. DeSilva is a Senior Attending Staff Member and Chairman in the Department of Integrative medicine at Raritan Bay Medical Center in New Jersey.   He is also a member of the teaching faculty at JFK Medical Center in Edison, NJ.  Dr. DeSilva  is Chairman of the Age of Management Medicine Group and Past President of the American Nutraceutical Association. He was the recipient of the Alan Mintz Award for Excellence in Clinical Age Management Medicine in November 2010, received the Best Doctor Award by Castle Connolly for the past 15 consecutive years. Derrick is a published author, host of the “Ask the Doctor” on WCTC Radio, and Medical correspondent for Cablevision (News 12 NJ) and Host of “12 to Your Health.”

Dr. John Humiston, MD

Medical Advisor

Dr. Humiston is a board-certified family physician with extensive education in effective alternative medicine. He received his medical degree from the Medical College of Wisconsin in 1995, then entered naval service where he completed his residency at Naval Hospital Camp Pendleton, California.  He began work at the William Hitt Center under the mentorship of Dr. William Hitt and then joined the Center for Health and Wellbeing staff in San Diego in 2010. He has lectured nationally on addiction treatment and Candida overgrowth, and has served as a consultant training other physicians on the effective treatment of addictions with intravenous amino acids. Information on NeuroRecover(TM), a new approach to drug and alcohol dependence and addiction, can be found at

Dr. James Fenley, M.D. team profile photo - Serenity Springs Recovery Center

Dr. James L. Fenley, Jr., MD

Addiction Consultant

James L. Fenley, Jr., M.D. is a board-certified physician and well-recognized speaker in the addiction field. Dr. Fenley has twenty-five years of experience helping addicts, their family members, and other professionals who treat addiction out of Atlanta, Georgia. He specializes in the treatment of adult alcoholism and drug addiction using an insight-oriented, 12-Step model of therapy, cognitive behavioral therapy. Dr. Fenley’s book, “Finding a Purpose in the Pain: A Doctor’s Approach to Addiction Recovery and Healing,” is a must read for all who have wrestled with the pain of addiction. He works with dual-diagnosis patients including PTSD. His knowledge and experience with addiction are utilized and we are proud to have him as our top consultant at Serenity Springs.


Dr. Edda Casanova, MD


Dr. Casanova, a member of the American Academy of Child and Adolescent Psychiatry,  provides psychiatric services for all clients and conducts weekly treatment team meetings. Dr. Casanova grew up in Puerto Rico and earned a Bachelor of Science in occupational therapy from the University of Puerto Rico in 1968. She went on to earn her Doctorate in Medicine from the San Juan Bautista School of Medicine in 1980.In 1983, she completed her residency in psychiatry at Bergen Pines County Hospital in NJ and her fellowship in child and adolescent psychiatry at Mount Sinai School of Medicine in New York in 1985. Since 1988 she has actively been practicing medicine in a variety of settings including;  New York, Virginia and Florida.

Rhiannon Haga, LMHC, NCC - Therapist

Rhiannon Haga, LMHC, NCC


Rhiannon is a National Certified Counselor and a Florida certified mediator. Rhiannon received her Bachelor of Arts in Psychology and a dual Master of Science degree in counseling (mental health and marriage & family), both from Barry University. Rhiannon has experience working with individuals, families, facilitating groups, and conducting seminars on various topics. She is also a certified EMDR I and II therapist. Rhiannon enjoys using a creative approach with clients and helping them to develop strength-based solutions to life challenges.

Profile photo of Laurie Milne, Lead Clinician

Laurie Milne, MSW, LCSW

Lead Clinician

Laurie received both her B.S.W. and M.S.W. from the University of New Hampshire. She has experience providing direct clinical work with both individuals and families through her own private practice and her work at previous drug and alcohol treatment centers. Laurie utilizes this alongside other methods such as behavioral management techniques and trauma-focused cognitive behavioral therapy. In Laurie’s own words, she says, “I approach my clinical role from a relationship and strengths-based perspective- heart and person centered, meeting an individual where they are at. I utilize evidence-based modalities, mindfulness, relaxation, and psychoeducation.” Among Laurie’s many strengths as a therapist include her ability to provide stabilization of clients with trauma and substance abuse disorder so that they may find inner peace and hope in recovery.

Treatment Professionals

Matthew Cortale

Director of Operations

Originally from Long Island, New York, Matt, aspired to have a career in business finance. He obtained a Bachelor of Science in Business Administration from the University of Colorado. After college, Matt initially worked in advertising but did not find the sense of fulfillment that he was expecting. Compelled by a personal loss due to the disease of addiction, Matt gravitated toward assisting others in their journey toward recovery. With a natural ability to help others, and a patient attitude he developed while growing up with a sibling diagnosed with autism, Matt was the perfect fit to start working at Serenity Springs. Beginning as a recovery advocate and transitioning into case management, Matt soon rose in rank to operations management. Today, Matt oversees the staff and daily operations at Serenity’s facilities.

Thomas Fain

Admissions Coordinator

A Long Island, New York native, Thomas graduated from Ward Melville High School and attended a trade school for automotive engineering in 2012. Thomas feels honored to be able to help assist in getting clients the help they so desperately need, as well as forming relationships with their respective family members during the admissions process. He says that the most rewarding thing that he has experienced while working at Serenity Springs Recovery Center is seeing clients’ eyes light up because they finally feel hope. His mission is to see clients through the process of recovery and continue on their path to becoming recovered men for the rest of their lives.

Dan Herman - Operations Coordinator - Serenity Springs Recovery Center - staff profile

Daniel Herman

Operations Coordinator

Born and raised in central New Jersey, Dan originally had his sights set on a career in news media. He graduated from Rutgers University in New Brunswick, NJ with a degree in Journalism and Media Studies in 2010. Dan relocated to Florida in 2015 where he overcame his own personal struggle with drug & alcohol addiction and became passionate about recovery and helping others. This enthusiasm propelled his career and Dan soon found himself working at Serenity Springs, originally as a recovery advocate. Since then, Dan has shifted over to content writing and brand management before settling into his present role of Operations Coordinator. Dan enjoys the daily challenges of this position and watching Serenity Springs grow and succeed as a facility committed to helping others recover.

admissions coordinator haley dean long blonde hair fair skin smiling

Hayley Dean

Case Manager

Hayley was born and raised in central Florida. She overcame the personal struggle with addiction in 2008. Hayley began a successful career in marketing in 2009. She has participated in local community outreach in her free time for a few years, cultivating a passion for helping provide addicts with a foundation to make positive changes in their lives. This experience motivated her decision to obtain an education so that she may use her passion professionally. After completing her degree in Psychology, Hayley became the lead administrator of a mental health and substance abuse agency in Volusia County. Hayley would continue as a behavioral health administrative professional, providing clients with information and tools to receive the best care possible with appropriate providers and community resources. Her experience as a behavioral health administrator is that she is at her best when assisting in recovery from substance abuse.

Board Members

Joseph Adevai

Board Member, Owner

Joe has had tremendous compassion and understanding with those suffering from the disease of addiction, after overcoming cocaine addiction himself over 20 years ago. Prior to opening Serenity Springs, Joe had an extremely successful career on wall street, becoming the vice-president for the company ICE on the NYSE. Joe became a pastor in the year 2000, and started Grace Church in New Jersey, which has had tremendous growth in the last 20 years. Joe retired from Wall Street in 2009, and now makes helping others his full time job. Joe recently became a published author after writing, A Reason to Live, which chronicles the story of his life.

James Marshall III

Board Member, Owner

James created the Serenity Springs Recovery Program and acted as Chief Operating Officer for the first three years. He grew up in New Jersey, and after studying accounting at Monmouth University from 2001-2006 developed and managed a number of businesses. In 2011, he moved to Florida to create his vision of an exclusive treatment center that offers individualized treatment that combines a 12 step experience with clinical therapy. James stays involved with Serenity Springs’ day to day operations and is dedicated to seeing those afflicted with addiction get well.

Jim Marshall, Jr.

Board Member, Owner

Jim brings a unique perspective to Serenity Springs’ Program. As an undercover narcotics detective, for more than two decades, Jim dealt with the world of addiction on a daily basis. After years of treating drug addiction as a crime, Jim came to realize that addiction is a disease and must be treated as such. After being exposed to the solution of recovery, Jim realized that there are numerous families that he and his son could help. With decades of experience seeing how addiction affects the family, Jim is able to empathize and help families going through their struggles.


1555 Cow Creek Rd, Edgewater, FL 32132