Menu Search>Obstetrix Medical Group of Colorado, P.C. Inpatient PICU and Pediatric Care Obstetrix Medical Group of Colorado, P.C. Inpatient PICU and Pediatric CarePhone: 303-839-7440 Fax: 303-839-7210 Our Clinicians Our Locations Pay Your Bill Our Clinicians Malcolm Anderson, DO Pediatric Intensivist Kristine Appel, MD Pediatric Hospitalist Jennifer Arble, DO Pediatric Hospitalist Carlos Barajas, MD Pediatric Intensivist Jonathan Brigham, MD Pediatric Hospitalist Tracy Butler, MD Pediatric Intensivist Danielle Dhaliwal, MD Pediatric Intensivist Matthew Gollub, MD Pediatric Intensivist Ann Gooding, MD Pediatric Intensivist Lisa Griss, MD Pediatric Hospitalist Alicia Herrera, MD Pediatric Intensivist Carlton “Adam” Loomis, MD Pediatric Hospitalist Mary MacEntee, MD Pediatric Intensivist Erin MacLeod, DO Pediatric Hospitalist Pamela Mattson, MD Pediatric Hospitalist Thiyagarajan Meyappan, MD Pediatric Intensivist Alison Santana, MD Pediatric Intensivist Caroline Thramann, MD Pediatric Hospitalist Gerald Williams, DO Pediatric Intensivist Find a Clinician Find a Practice Request for Proposal X