Dr. Maniatis is proud to be a consulting physician with Rocky Mountain Hospital for Children since 2005.

Dr. Maniatis is a Colorado native who graduated from the University of Colorado with a double major in molecular biology and biochemistry. He attended Harvard Medical School and completed his pediatrics residency and pediatric endocrinology fellowship at Children's Hospital Colorado. He is double-board certified in both pediatrics and pediatric endocrinology. He has published original abstracts, manuscripts, book chapters, and academic reviews, and he has presented lectures both nationally and internationally.

Dr. Maniatis is a member of the American Academy of Pediatrics, Endocrine Society, Pediatric Endocrine Society, and European Society for Paediatric Endocrinology. He is on the advisory committee for the Colorado Newborn Screening Program as an expert in congenital hypothyroidism and congenital adrenal hyperplasia. The practice also provides the initial consultation for all babies in Colorado and Wyoming with an abnormal newborn screen for congenital hypothyroidism.

He is a national key opinion leader on growth disorders and has served as national spokesperson for Growth Awareness Week for the past 6 years (2018-2023). He lectures for the MAGIC foundation, a non-profit patient advocacy group for children with growth disorders. Dr. Maniatis has also been voted annually as a 5280 Top Doctor for the past 8 consecutive years (2016-2023).

Academically, Dr. Maniatis is an Associate Clinical Professor with the University of Colorado Health Sciences Center and serves as a clinical preceptor for physician assistant students as well as a panelist on career development for graduating pediatric fellows from Children’s Hospital Colorado. He is extensively involved in clinical research including multiple phase 3 trials in long-acting growth hormone and a phase 4 trial in the metabolic bone disease hypophosphatasia.

Dr. Maniatis is fluent in Spanish and Greek. He is married and has two daughters. He enjoys traveling, SCUBA diving, and ballroom dancing.