Meet Our Providers

Our Practice is the proud home of three award-winning Pediatric Physicians and two amazing Nurse Pratitioners.

Eileen Fox, MD

Dr. Eileen Fox Dr. Eileen Fox is a pediatric physician who began practice in Norman in 1982. Originally from Texas, Dr. Fox earned her degree in Medicine at the University of Texas Medical Branch in Galveston, Texas. She completed her residency at Oklahoma Children’s Memorial Hospital in Oklahoma City, Oklahoma in 1982. She is board certified in Pediatrics and she has served as Chief of Staff at JD McCarty Center for children with developmental disabilities since 1985. In 1987 and again in 1992, Eileen Fox served as Chief of Pediatrics at Norman Regional Hospital and as Secretary of Medical Staff in 1988. She was voted Top Doctor by Castle Connolly Medical Ltd, and was voted Readers Choice Normans Best Pediatric Medical Doctor alone in 2008 and with her partner Dr. James Fields in 2009 and 2010. Dr. Fox enjoys new challenges and has studied basic classes in a foreign language, dance, and sign language. She enjoys traveling out of the country with her husband. She is an avid OU Sooner fan and never misses a home football game! Dr. Fox understands the anxiety felt by parents with sick children. She also understands the many demands on parents’ time. For this reason, she does her best to ensure that her young patients are seen quickly, receive a thorough examination and the best treatment available. She sees patients in Moore on Wednesdays and in Norman the rest of the week. She has admitting privileges at Norman Regional Hospital, at Moore Medical Center, at OU Medical Center and at JD McCarty Center for children with disabilities.


James Fields, MD

Dr.James Fields Dr. James Fields is a pediatric physician who began practice in Norman in 1982. He earned his bachelor’s degree from Oklahoma State University and his medical degree from the University of Oklahoma. He completed his residency at Oklahoma Children’s Memorial Hospital in Oklahoma City, Oklahoma in 1982. He is Board Certified in Pediatrics and is a member of the Oklahoma State Medical Association. Dr. Fields received the Reader’s Choice award for Norman’s Best Pediatrician in 2007 solo, and in 2009 and 2010 with his partner Dr. Eileen Fox . He received the Norman Transcript People Choice Award as Best Pediatrician at Norman Regional Hospital in 2005. Dr. Fields has a deep sense of family that extends into his practice. As he sees his patients over several years, his staff is amazed by how he recalls specific incidents, their likes and preferences. Very often, he not only remembers each of his patients’ names and family members but he also recalls their birth months or birth years as they grow older. He really enjoys getting to know each of his young patients. Dr. Fields is known for “going the extra mile” for his patients. He feels it is extremely important for all of his children to have their well child check-ups and vaccinations in order to prevent diseases. In turn, he detects many serious diseases and illnesses with his very thorough examinations. In addition to his medical practice, James Fields enjoys spending time with his wife and four children and especially with his new granddaughter. He enjoys running, watching movies, and loves to try new restaurants around town. He sees patients Monday through Wednesday and Friday in Norman, as well as Thursdays in Moore. He has admitting privileges at Norman Regional Hospital, at Moore Medical Center, at OU Medical Center and at JD McCarty Center for children with disabilities.


Brian Ellis, MD

Dr.Brian Ellis Dr. Brian Ellis is a Board Certified pediatric physician who began practicing in Norman in 2009. Dr. Ellis grew up in Midwest City, and earned his Bachelor’s degree from Oklahoma City University and his Medical Degree from the University of Oklahoma. He completed his pediatric residency at The Children’s Hospital at Scott & White in Temple, Texas in 2009. Dr. Ellis looks forward to establishing long-term relationships with his patients in order to help them manage their overall wellness and any chronic conditions. He believes that checkups and preventative medicine are very important in keeping patients on track in their overall health. Dr. Ellis also values parental input because he believes that parents play a vital position on each child’s “healthcare team.” Dr. Ellis enjoys spending time with his family, particularly his wife and 2 amazing children. He enjoys watching movies, photography, playing golf, and video games. He is a born and bred Sooner, and looks forward to becoming a member of the Norman community. Dr. Ellis sees patients Monday through Friday 9am to 5 pm, Monday- Thursday in Norman and Fridays in Moore. He has admitting privileges at Norman Regional Hospital and Moore Medical Center.


Glen Diaz, FNP, ARNP

Glen Diaz Glen Diaz is a family nurse practitioner who has been with Drs. Fox and Fields since 2001. He obtained his Bachelors of Science in Nursing degree from the University of South Florida and his Masters of Science in Nursing degree from the University of Oklahoma. He is certified by the Oklahoma Board of Nursing as an Advanced Practice Registered Nurse. In addition to his professional activities, he is happily married and a father of 5 wonderful children and a beautiful granddaughter. He enjoys many outdoor activities and spending time with friends and family. He and his wife truly love to travel and hope to do more of it throughout their marriage. Glen sees patients Monday through Friday 9:00 AM to 5:00 PM, in Moore on Mondays and Norman Tuesday- Friday. He also sees newborns at Norman Regional Hospital and Moore Medical Center.