Maureen G. Phipps, MD, MPH

Chief Executive Officer

ACOG Staff Member Maureen Phipps

Maureen G. Phipps, MD, MPH, FACOG, began serving as ACOG’s CEO on September 9, 2019. As CEO, she oversees ACOG’s day-to-day operations and provides leadership to more than 200 staff members with her executive team.

Dr. Phipps completed her undergraduate work at Boston College and medical school at the University of Vermont College of Medicine. She completed residency training at Brown/Women & Infants Hospital of Rhode Island, and a Robert Wood Johnson Clinical Scholars fellowship and master’s in public health at the University of Michigan.

Dr. Phipps has held several prominent positions in academia and major health systems. Most recently, she served as chair of the Department of Obstetrics and Gynecology at the Warren Alpert Medical School of Brown University and assistant dean for Teaching and Research in Women’s Health. She also held the roles of executive chief of obstetrics and gynecology at the Care New England Health System and chief of obstetrics and gynecology at Women & Infants Hospital of Rhode Island.

She has been the principal investigator or co-investigator in numerous projects funded through the National Institutes of Health and other national agencies. Highlights include the Brown University National Children’s Study, National Center of Excellence in Women’ Health, Women’s Reproductive Health Research Scholars Program, the Children’s Environmental Health Formative Center, Fit for Delivery, Project REACH, and several other projects related to health outcomes in vulnerable populations.

Over her 25 years of involvement in ACOG, Dr. Phipps has been active in numerous activities, including the Committee on Health Care for Underserved Women, the Women’s Preventive Services Initiative, Committee on Scientific Program, and the Evidence-Based Medicine Expert Work Group for Gynecology. She has also held leadership roles with the American Board of Obstetrics and Gynecology, the Foundation for Exxcellence in Women’s Health, the Council of University Chairs in Obstetrics and Gynecology, and the American Gynecological and Obstetrical Society.

She has been recognized on numerous occasions as an outstanding teacher and mentor, with accolades that include the ACOG Mentor Award for District I, the Council on Residency Education in Obstetrics and Gynecology Excellence in Teaching Award, and the Association of Professors of Gynecology and Obstetrics Excellence in Teaching Award.

Christopher M. Zahn, MD

Vice President, Practice Activities

ACOG staff member Christopher Zahn

Dr. Christopher M. Zahn is the Vice President, Practice Activities. A retired Air Force Officer and member of ACOG’s Armed Forces District, he received his medical degree from Uniformed Services University of the Health Sciences and is a specialist in comprehensive obstetrics and gynecology who has been practicing for 29 years.

Before joining ACOG, Dr. Zahn was Professor and Chair of Obstetrics and Gynecology at the Uniformed Services University of the Health Sciences (USUHS), and a staff physician in the Departments of Obstetrics and Gynecology and Pathology at Walter Reed National Military Medical Center in Bethesda, Maryland. He was also the Program Director of the Uniformed Services Residency in Obstetrics and Gynecology, a maximally accredited tri-military Service residency in Obstetrics and Gynecology, under the auspices of the National Capital Consortium at USUHS. Dr. Zahn has also been a member of the ACGME Review Committee for Obstetrics and Gynecology, and is currently a member of the Board of Directors of the American Board of Obstetrics and Gynecology.