Jeanna Bamburg,
Chief executive officer

Jeanna Bamburg, FACHE, was appointed chief executive officer (CEO) at The Woman’s Hospital of Texas in July 2022.

Bamburg was the CEO at HCA Houston Healthcare Southeast for 10 years. Prior to serving as CEO, she served as chief operating officer at HCA Houston Southeast when it was Bayshore Medical Center. Additionally, she has held positions of increasing responsibility in her 25 years with HCA Healthcare.

A native Houstonian, Bamburg has a strong history of community service and is committed to cultivating impactful relationships with key community leaders through her involvement with various local chambers and nonprofit organizations. She serves on the Board of Directors of Houston’s Alley Theatre and she recently served as the 2022 March of Dimes March for Babies Houston Chairperson. She has also been named one of Houston’s Most Admired CEOs, Houston’s Women Who Mean Business and Houston’s Breakthrough Women.

Bamburg earned a master’s degree in business administration and a bachelor’s in business administration with a concentration in marketing from the University of Houston – Clear Lake. She is board certified in healthcare management as a fellow with the American College of Healthcare Executives, with which she currently serves as the regent for the Southeast Texas chapter.

Hannah Gelbs-Gadd,
Chief operating officer

Hannah Gelbs-Gadd, FACHE, was appointed chief operating officer (COO) at The Woman’s Hospital of Texas in August 2022.

Gelbs-Gadd most recently served as vice president of operations at HCA Houston Healthcare Clear Lake, where she led successful initiatives resulting in improved hospital throughput efficiencies, patient experience gains, top-ranked employee engagement, and oncology service line growth. In her new role, Gelbs-Gadd will provide executive-level leadership for hospital operations including leading multiple clinical service lines, ancillary departments and growth agendas. She will also be deeply involved in hospital strategic planning, capital planning, employee engagement, and physician relations.

Gelbs-Gadd began her healthcare career with HCA Healthcare Gulf Coast Division in 2012. After finding success in hospital operations appointments at The Woman’s Hospital of Texas and HCA Houston Healthcare West, she graduated from HCA Healthcare’s Executive Development Program in 2017.

Gelbs-Gadd is a dedicated community leader. She is an active member of the Junior League of Houston, a frequent volunteer for the Houston Food Bank and March of Dimes, and serves as the current chair of the Gulf Coast Division’s Young Professionals Colleague Network. In her spare time, she is an active member of the American Quarter Horse Association and competitively shows Quarter horses in all-around events.

Gelbs-Gadd received her Bachelor of Business Administration in Accounting and Finance from Texas A&M University Mays Business School in 2010. She went on to receive her Master of Healthcare Administration from Trinity University in 2012. Gelbs-Gadd became a Fellow of the American College of Healthcare Executives (FACHE) in 2018.

Nicole Fleming
Chief medical officer

Dr. Nicole Fleming, MD, joined The Woman's Hospital of Texas as chief medical officer (CMO) in September 2025. She is a seasoned leader in hospital medicine with more than 14 years of healthcare experience.

Previously, she served as the deputy CMO for Fred Hutchinson Cancer Center in Seattle, Washington, with a joint faculty appointment as professor in the division of gynecologic oncology at the University of Washington Medical Center.

A native Texan, Dr. Fleming completed her undergraduate degree at Texas A&M University and medical school at the University of Texas Health Science Center Houston. Following the completion of her OB/GYN residency at Duke University Medical Center and fellowship in gynecologic oncology at the University of California, Los Angeles (UCLA) and Cedars-Sinai Medical Center, Dr. Fleming returned home to begin her career at MD Anderson Cancer Center.

A member of several national, international, state and local professional organizations, Dr. Fleming is a well-respected, accomplished, patient-centered physician who shares our commitment to exceptional care. She serves as an advisory board member for Ovarcome, a non-profit organization based in Houston focused on the support and education for ovarian cancer patients, survivors and caretakers.

Aki Mathieu
Chief financial officer

Aki Mathieu, CPA, joined The Woman's Hospital of Texas as chief financial officer (CFO) in March 2024.

Mathieu most recently served as associate CFO at Reston Hospital Center in Reston, Virginia, which is part of the HCA Healthcare Virginia family. While there he was instrumental in navigating major growth initiatives such as the opening of Tysons Emergency and new operating rooms, inpatient rehab and NICU expansions, as well as the ongoing patient area refresh.

Mathieu began his healthcare career in 2017, serving as the controller and was promoted to the interim CFO for Riverbend Community Mental Health. He then joined the HCA Healthcare family in 2020 when he accepted the role of controller at Parkland Medical Center in Derry, New Hampshire.

Prior to his healthcare career, Mathieu spent over six years in a variety of accounting and auditing positions in the greater Boston area. He also proudly served five years in the United States Navy, where he specialized in aviation systems electronics.

Mathieu holds a CPA license in New Hampshire, and obtained his master's degree in accounting from Southern New Hampshire University.

Michelle C. Stemley,
Chief nursing officer

Michelle C. Stemley, DNP, RN NEA-BC, was appointed chief nursing officer at The Woman’s Hospital of Texas in August 2023.

Stemly brings more than 25 years of nursing experience and most recently served as the vice president of patient care at Baylor Scott & White All Saints Medical Center - Fort Worth providing executive oversight of nurses and colleagues, while leading the hospital’s women’s, children’s and perioperative service lines.

She received her doctor of nursing practice in executive leadership from Texas Tech University Health Sciences Center in 2022. At graduation, she was awarded the Doctor of Nursing Practice Excellence Award and was invited to be the keynote speaker at Texas Tech's nursing school commencement.

Stemly has achieved the Advanced Nurse Executive Board Certification from American Nurses Credentialing Center and currently holds an assistant professor role at the Burnett School of Medicine at Texas Christian University.

The Woman's Hospital of Texas Board of Trustees

  • Genora Boykins, Chair of the Board
  • Dr. David Horst, Chief of Staff
  • Jeanna Bamburg, CEO of The Woman's Hospital of Texas
  • Dr. Andy Chen
  • Joni Fichter
  • Dr. Ja'Neice Houston
  • Julie Huang Yim
  • Freda Lee
  • Rosalinda Martinez
  • Dr. Dolar Patolia
  • Dr. Joseph Salinas
  • Dr. Ivonne Smith
  • Michelle Stemley, CNO, Ex-officio member