Our Staff

At Aviva, we understand that quality medical care and a positive customer service experience begin with a competent, dedicated, and friendly staff. We have assembled a highly qualified and engaged staff of professionals that are focused meeting the needs of each patient and client.

Dr. George Stoica

Internist / Physician Poinciana Clinic

Board Certified in Internal Medicine by the American Board of Internal Medicine, Dr. Stoica comes to Central Florida after 13 years of private practice in Long Island, NY. With vast experience in patient management and medical care, Dr. Stoica has additional board certifications in in Sleep Medicine (ABSM), Critical Care Medicine (ABIM) and Pulmonary Disease (ABIM). He completed his post graduate residency and fellowship training at New York Flushing Medical Center affiliated with Cornell University Medical School and Long Island Jewish Medical Center campus for the Albert Einstein College of Medicine.


Dr. Robert Kaplan

Medical Director

Board Certified in Internal Medicine with a CAQ in Geriatrics, and a Certified Medical Director, Dr. Kaplan provides medical oversight and advises the team on healthcare issues including clinic policy, procedures, and patient care processes. Dr. Kaplan is a Fellow of the American College of Physicians, was a practicing Internist for approximately twenty years. A graduate of New York University and the University of Brussels School of Medicine, Dr. Kaplan completed his residency at Genesee Hospital in Rochester, New York.


Michelle McCormack-Bilsky

Service Director Poinciana Clinic

With a broad background in clinic management, nursing, aesthetics, massage, wellness, and insurance, Ms McCormack-Bilsky runs the operations and management of the Solivita Clinic. She holds a BS degree from UCF and an MBA from Wharton School of Business. She is a nationally accredited and licensed massage therapist, Certified Medical Electrologist, Licensed Medical Esthetician, RN, and Certified in all Laser Services.