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  • Jason D. Rich, MD

    Jason D. Rich, MD, is a pediatrician in practice with Orlando Health Physician Associates.

    Dr. Rich earned his medical degree from the University of Florida College of Medicine, Gainesville, where he also received a bachelor’s degree in biochemistry, graduating summa cum laude. Dr. Rich completed a pediatrics residency at the University of Florida and served three years as a Florida Diabetes Camp counselor.

    Dr. Rich’s clinical interests include increasing awareness of the importance of vaccinating children against Neisseria meningitis, often referred to as meningococcus. He also has published research concerning Sjögren’s syndrome.

  • Jannette H. Negron, MD

    Pediatric Medicine 407.635.3020 Hours of Operation Monday: 7:00am - 4:00pm Tuesday: 9:00am - 6:00pm Wednesday: 7:00am - 4:00pm Thursday: 9:00am - 6

  • Janusz B. Burzynski, MD

    Janusz B. Burzynski, MD, is a board-certified pediatric cardiologist at with Orlando Health Children's Heart Institute. He diagnoses and treats infants and children with congenital and structural heart conditions.

  • James E. Toledano, MD

    James Toledano, Jr., MD, FAAOS, is a board-certified orthopedic surgeon. He serves as chief of pediatric orthopedic surgery at Orlando Health Arnold Palmer Hospital for Children Center for Orthopedics. He cares for children with musculoskeletal conditions, including scoliosis, spina bifida, congenital deformities and more.

  • James P Ryan, MD

    James Ryan, MD, is board certified by the American Board of Orthopedic Surgery and is a member of both the American Academy of Orthopedic Surgeons and the Florida Orthopedic Society. After receiving his medical degree from the University of Oklahoma School of Medicine, Dr. Ryan completed his internship in general surgery and his residency in orthopedic and rehabilitative surgery at the University of Oklahoma Health Science Center. Dr. Ryan received his fellowship training in arthroscopy and knee reconstruction surgery at Medical Arts Hospital in Dallas, Texas. Dr. Ryan has been in private practice since January 1984. He is married and has four children.

  • Jay Ashok Vachhani, MD

    Dr. Jay Vachhan is a board-certified neurosurgeon with Orlando Health Neuroscience Institute. He is a fellow of the American Association of Neurological Surgeons and a member of the Congress of Neurological Surgeons.

  • Jacqueline E. Hamilton, MD

    Jacqueline Hamilton, MD, joined Orlando Health Medical Group in 2009. She is board certified in urology and has been practicing in the Orlando area since 1998.

  • Jennifer A Villar, MD

    Jennifer A. Villar, MD, is board certified by the American Board of Pediatrics and serves at Orlando Health Arnold Palmer Hospital for Children Endocrinology and Diabetes Center. Her clinical interests include short stature, early puberty and obesity.

  • Jennifer K. Logan, MD

    Dr. Jennifer Logan is a board-certified radiation oncologist with the Center for Advanced Radiation Therapy at the Orlando Health Cancer Institute. She specializes in radiation therapy to treat patients at all stages of cancer, with advanced training in treatments including proton therapy, MRI-guided adaptive radiation, HDR and LDR gynecologic brachytherapy, stereotactic body radiation therapy and radioembolization.

  • Jennifer S. Thielhelm, MD

    Jennifer Thielhelm, MD, is a board-certified pediatrician with Orlando Health Physician Associates. Dr. Thielhelm specializes in providing comprehensive care — from the assessment of childhood development to the treatment of common and complex illnesses — for newborns, children and adolescents through college.