Hospital administration

Megan Gray, Chief Nursing Officer

Megan Gray

Interim Chief Executive Officer
and Chief Nursing Officer

Megan Gray, DNP, RN, joined HCA Healthcare in 2015. Prior to joining Frisbie Memorial Hospital, she served as associate chief nursing officer at Portsmouth Regional Hospital.

Megan has nearly two decades of nursing experience – bedside, education, and leadership. Prior to joining HCA Healthcare, she worked at Seacoast-area hospitals in various nursing and supervisory roles. She also served as an assistant clinical and adjunct nursing professor for the University of New Hampshire (UNH) Nursing Department for 10 years.

During her tenure at Portsmouth Regional Hospital, Megan was part of several initiatives and growth projects including: implementation of the new education model across the New Hampshire market; awarded Comprehensive Stroke Center designation along with the Neurosciences team which she oversaw; helped launch the Stroke and Brain Aneurysm clinic; and the expansion of the Intensive Care Unit, Cardiac Surgery Stepdown Unit, and Progressive Care Neuro Trauma Unit.

She earned her Bachelor’s in Nursing from Quinnipiac University in Hamden, CT; a Master’s Degree in Nursing - FNP track and a Doctorate of Nursing from University of New Hampshire (UNH). Megan serves on the academic advisory councils for UNH, Great Bay Community College, and Franklin Pierce University. In 2022, she was elected to the New Hampshire Nurses Association board of directors for a two-year term.


Jacob Wiesmann

Jacob Wiesmann

Chief Financial Officer

Jacob Wiesmann is the chief financial officer (CFO) for the Seacoast Market of HCA New England Healthcare. As CFO, Jacob has management responsibility of all financial departments including accounting, reimbursement, managed care, health information, and utilization review at both Portsmouth Regional Hospital and Frisbie Memorial Hospital. He is also responsible for the financial allocation of resources and developing operational and capital budgets that support the hospital’s short- and long-range plans.

Prior to his current role, Jacob most recently served as CFO of HCA New England Healthcare’s Parkland Medical Center in Derry, New Hampshire. Throughout his career, he has served in various roles within HCA Healthcare, including financial controller positions with Colorado-based North Suburban Medical Center and Rose Medical Center. Prior to that, Jacob served as assistant controller of CJW Medical Center in Richmond, Virginia. He began his career at HCA Healthcare in 2002 as a staff accountant at Presbyterian/St. Luke’s Medical Center in Denver, Colorado.

Jacob has served in several leadership positions on nonprofit boards in the communities where he resided which included president of The Upper Room, a family resource center dedicated to the education of young people and young families, for which he remains on the advisory board; and president of the board of Community Health Services, a nonprofit organization that provides education and case management support for those struggling to navigate healthcare services.

Jacob holds a Bachelor of Business Administration from Texas A&M University and a Master of Business Administration from Regis University. He also holds a Certificate in International Business from EM Strasbourg Business School (formerly IECS) in Strasbourg, France.


Brian Sanders, MD, MHCM

Brian Sanders, MD, MHCM

Chief Medical Officer

Brian Sanders, MD, MHCM, is the Chief Medical Officer (CMO) for the Seacoast Market of HCA New England Healthcare, overseeing clinical performance and practice standards at Portsmouth Regional Hospital and Frisbie Memorial Hospital to ensure superior clinical outcomes and patient experience. He joined Portsmouth Regional Hospital in January 2023, and soon took over duties at Frisbie Memorial Hospital.

Prior to joining HCA Healthcare, Dr. Sanders most recently served as chief of the department of pediatric emergency medicine and chair of the department of pediatrics at Mass General Brigham’s Salem Hospital. He also served as the hospital’s site director for the Boston University Medical Student Program, as medical director for the COVID-19 employee testing clinic and vaccine program, and as site director for the REVISE (Reducing Variability in the Infant Sepsis Evaluation) Study for the American Academy of Pediatrics.

During his career, Dr. Sanders also served as medical director of pediatric emergency medicine at Lowell General Hospital where he helped to develop a pediatric emergency department. He also practiced as a pediatric emergency medicine physician at Children’s Hospital Boston; Children’s Specialty Group in Norfolk, Virginia; and Pediatric Emergency Medicine Associates in Atlanta, Georgia.

Dr. Sanders, a dual board-certified pediatrics and pediatric emergency medicine physician, holds a bachelor’s degree from the University of Virginia. He earned his medical degree from the Medical College of Georgia, and completed his residency and fellowship at Children’s Hospital of the King’s Daughters in Norfolk, Virginia. He also holds a Masters in Healthcare Management from Harvard University Chan School of Public Health.

Dr. Sanders has held academic appointments at Harvard Medical School, Tufts University School of Medicine, Medical College of Georgia, Eastern Virginia Medical School, and Boston University School of Medicine. His volunteer work includes international travel, treating patients and developing medical clinics in Zambia, India, Ecuador, and Jamaica. 


Kira Riley

Kira Riley

Vice President of Human Resources

Kira Riley joined HCA Healthcare in November 2021 and came to Frisbie Memorial Hospital from Portsmouth Regional Hospital, where she previously served as Senior Human Resources Business Partner since November 2021. She also concurrently served as Interim Vice President of Human Resources at Parkland Medical Center for several months.

During her time at Portsmouth Regional Hospital, Kira played a vital role in enhancing the patient experience and improving onboarding and retention, helping to reduce turnover in 2022. She has been instrumental in rebuilding relationships with directors and managers at both facilities.