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Addition Medicine Specialists of Florida Logo Art


The Art & Science of Evidence-Based Addiction Medicine

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Meet Our Team

Welcome to our practice at Addiction Medicine Specialists of Florida!


Our medical model is structured to emphasize the personalized and direct relationship between a patient and his/her physician to improve their total health outcomes and keeping their health care costs low. By spending more time with patients, both telemedicine and face-to-face, the patients receives individualize and personalized care.


We actively strive as a team in providing the patient and their loved ones our very best in addiction, psychiatric, behavioral health, and primary care. As an added benefit, we also treat primary care issues as a matter of course with treating addiction, mental health and psychiatric needs.

William Leach, MD

Dr. William C. Leach is the medical director and founder of Addiction Medicine Specialists of Florida. He is a board-certified, fellowship-trained in addiction medicine at the University of Florida in 2009. He was part of the first physicians in the world to become board-certified in addiction medicine. He provides physicians, nurse practitioners, and physician assistants with in-depth mentoring for improving the learner's skills and clinical education in the science of addiction medicine.

Furthermore, he is a Diplomat of the American Academy of Family Physicians (AAFP), which recognizes AAFP members who have distinguished themselves among their colleagues, as well as in their communities, by their service to family medicine, by their advancement of health care to the American people, and by their professional development through medical education and research.

William C. Leach, MD


Rosalie Villecco

Ms. Villecco is in the nursing profession for over ten years. She received her ASN from Daytona State College, both BSN, and MSN from UCF, and attended Stetson University for a BS in Biology. She is a board-certified family nurse practitioner, and also holds a certification in addiction. Her clinical experience has largely concentrated in the behavioral health arena, where she has practiced inpatient medical detoxification and outpatient interventional psychiatry, and chemical dependency. Ms. Villecco also works in academia, as a nursing program director. 

Rosalie Villecco



Judy has many years of patient care experience in the medical field, and as a multiple award winning medical aesthetician.  She is a wealth of knowledge on proper skin care.


Medical Assistant


Reece is studying Biology at the University of Central Florida. His passion for science and medicine is leading  him toward a career in the helping professions.  Go Knights!


Medical Assistant


We are here to help you or your loved ones manage addiction. We provide comprehensive, private, personalized, and convenient addiction medical care at two convenient locations in Central Florida. Call or email us to schedule an appointment.

Please call or text us for an immediate response. Dr. Leach will be speaking with you personally.

Patient Care Line

(321) 972-9650

Winter Park Office Fax

(321) 972-8253

Orange City Office Fax

(321) 960-7833





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