Menu Search>Obstetrix Medical Group of Colorado, P.C. – Neonatology>Our Clinicians Obstetrix Medical Group of Colorado, P.C. – NeonatologyPhone: 303-839-7440Fax: 303-839-7210 Our Clinicians Our Locations Pay Your Bill Carol Herczeg, NP Neonatal Nurse Practitioner UndergraduateLinfield College GraduateRegis University