Meet Our Team
Our dedicated team of Healthcare professionals is here to guide you!
Dr. Calvin Howard Fischer, DO
Dr. Calvin Howard Fischer is a board-certified family physician with over 50 years of experience delivering compassionate, results-driven care. As Medical Director of SlimFit Weight Loss Wellness Center, Dr. Fischer leads our clinical team with a deep commitment to health optimization, patient safety, and integrative wellness.
A graduate of the Chicago College of Osteopathic Medicine, Dr. Fischer completed his internship at Detroit Osteopathic Hospital and has since served in various leadership roles across the country. Throughout his distinguished career, he has been recognized for advancing quality improvement initiatives and spearheading innovative medical programs.
At SlimFit, Dr. Fischer oversees our weight loss, hormone replacement, and regenerative therapy protocols. His approach blends traditional medical expertise with cutting-edge wellness strategies—helping patients achieve lasting results and a higher quality of life.
With an unwavering dedication to each individual’s health journey, Dr. Fischer ensures every treatment plan is safe, effective, and personalized.
Brooke Bullinger, RN
Registered Nurse
Brooke earned her nursing degrees from Jackson College and Michigan State University. She began her nursing career on the cardiac unit at Henry Ford Hospital in Michigan before relocating to Florida in 2024. She now brings her clinical expertise and compassionate care to Bayfront Health and SlimFit Wellness Clinic & Medical Aesthetics.
Makayla Walker-Brown, LPN, LME
Licensed Medical Esthetician
Makayla is known for her gentle touch and deep understanding of all skin types. She blends skill, passion, and personalized care to deliver transformative skincare experiences. Her mission is to help every client achieve healthy, radiant skin—and the confidence that comes with it.
Lina Tran, BSN, RN
Registered Nurse
Lina is a dedicated Registered Nurse at SlimFit Wellness Clinic & Medical Aesthetics, helping patients reach their wellness goals through personalized, evidence‑based care. With a strong background in nursing and a commitment to health education, she empowers every patient to make informed lifestyle choices and feel their best.
Gabi Labanauskaite
Clinic Manager
Gabi’s passion for healthcare and client care elevates the SlimFit experience. Her expertise in clinic operations and integrative medicine ensures that every patient receives a smooth, supportive, and fully personalized journey from start to finish.
Rhonda Daniels, PA
Healthcare Manager
Rhonda began her career as Chief Neurosurgical P.A. at Jacobi Medical Center, developing precision and a strong dedication to patient care. She now specializes in advanced injectables, hair restoration, and laser treatments.
About Our Founder
Sonata Riegel BA, MBA
Sonata Riegel, founder of SlimFit Wellness Clinic & Medical Aesthetics, is dedicated to helping individuals achieve lasting health, confidence, and vitality. With a Bachelor of Arts (BA) and a Master of Business Administration (MBA) in Global Management, she brings a powerful blend of clinical understanding, business expertise, and compassionate leadership to the wellness space.
At SlimFit, Sonata leads a passionate team committed to science-based treatments, transformative results, and a luxury wellness experience across the Sarasota and Venice locations.
