Katherine Martz, MD Attending Physician, Division of Medical Critical Care; Attending Physician, Franciscan Children's Hospital Image NPI 1043609373 Print Profile Request an Appointment Locations Boston Boston Children's Hospital 300 Longwood Ave. Boston, Massachusetts 02115 Phone: 617-355-6000 Listen Katherine Martz, MD Attending Physician, Division of Medical Critical Care; Attending Physician, Franciscan Children's Hospital Medical Services Languages English Education Medical School Johns Hopkins School of Medicine 2018 Baltimore MD Residency Pediatrics Boston Children's Hospital 2021 Boston MA Fellowship Pediatric Critical Care Washington University School of Medicine 2025 St. Louis MO Certifications American Board of Pediatrics (General) Locations Boston Boston Children's Hospital 300 Longwood Ave. Boston, Massachusetts 02115 Phone: 617-355-6000