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VA Pacific Islands Health Care System


Leadership Team

Under Recruitment |


Portrait of Tonia J. Bagby, PsyD

Tonia J. Bagby, PsyD |

Associate Director

Tonia J. Bagby, PsyD was appointed Associate Director for the Pacific Islands Health Care System in August 2014.

She is responsible for the administrative operations of the health care facility to include Acquisitions and Material Management, the Business Office, Voluntary Services, the Compensation and Pension Program, Facilities Management and Engineering, Health Administration Services, Human Resources, the VA/DoD Office, and Prosthetics. Additionally, Dr. Bagby was appointed the Acting, Medical Center Director of VA Pacific Islands Health Care System from February 2016-September 2016.

Prior to her arrival, Dr. Bagby has served the VA for several years at the Executive level at the Washington D.C and Martinsburg, WV and Augusta, GA. Dr. Bagby began her career with the Department of Veterans Affairs as a clinical psychology intern at the Hampton VA Medical Center in August 2005. In February 2007, she was hired as a full-time staff psychologist, and served as the as the Virginia Beach CBOC Operations Manager from November 2008 to 2012.

Dr. Bagby received her Bachelor's Degree in Psychology from Minnesota State University, Moorhead, MN (1993), her Masters of Arts Degree in Counseling Psychology from New York University, New York, NY (1997) and her Doctorate in Clinical Psychology from the Chicago School of Professional Psychology in Chicago, IL (2006). Dr. Bagby has taught classes in psychodynamic psychotherapy as an adjunct faculty member at the Chicago School of Professional Psychology, Washington, DC campus.

Portrait of William Dubbs, M.D.

William Dubbs, M.D. |

Chief of Staff

Dr. Dubbs was appointed Chief of Staff at the VA Pacific Islands Health Care System on September 16, 2007. He received his medical degree in 1975 from the University of Nebraska, completed an internship and residency at the Naval Hospital in San Diego, and received board certification in surgery from the American Board of Surgery in 1989.

Prior to his medical degree, he earned a Bachelor's degree from Phillips University in Enid, OK, and also earned a masterís degree from Oklahoma State University. While at the Naval Hospital in San Diego, Dr. Dubbs served as surgeon and chairman for the Department of Cardiothoracic Surgery until 1989. He practiced as a cardiothoracic surgeon from 1989 to 1991 in San Diego and as a general practitioner from 1991 to 1995 in Stilwell, OK. While in Stilwell, he also served as Medical Director for the Cherokee Nation Indian Clinic from 1993 to 1995. From 1995 to 1998, he served as Director for the Cookson Hills Rural Health Clinic in Cookson, OK. He maintained a private practice in Tahlequah, OK, from 1995 to 2001. In Sept. 2001, Dr. Dubbs joined the VA as the Chief of Staff at the Jack C. Montgomery VA Medical Center in Muskogee, OK.

Dr. Dubbs is a member of the American Medical Association, Oklahoma State Medical Association, Tri-Country Medical Association, International College of Surgeons, Southern Medical Association, Diplomat American Board of Medical Examiners, American College of Chest Physicians and American Thoracic Society.

Portrait of Katrina E. Hansen-Schmitt, DNP, FNP-BC

Katrina E. Hansen-Schmitt, DNP, FNP-BC |

Associate Director, Patient Care Services Nurse Executive

Katrina (Kate) Hansen-Schmitt was appointed to the position of Associate Director, Patient Care Services in January 2014. Her foremost goal is to serve veterans through excellent patient care in nursing. Prior to this appointment she held positions as Associate Chief Nurse, Geriatrics and Extended Care and as Nurse Practitioner for Home Based Primary Care on the island of Maui from 2006 to 2013. Kate has served in the VA for 16 years, coming to the VAPIHCS from New Orleans, LA in the aftermath of Hurricane Katrina. She retired from the United States Naval Reserve in 2007, after 20 years of service as Lieutenant Commander, Nurse Corps.

As the Associate Chief Nurse for Geriatrics, she provided oversight of the Community Living Center (CLC) at the VAPIHCS, as well as supervised the CLC day-to-day operations. She provided nursing oversight for the Share the Care, Community Nursing Home, Hospital at Home, Caregiver Support, and Hospice/Palliative Care programs. She is a VA certified mentor, and has completed the VA Leadership Development Institute (LDI) and Geriatric Scholars program for Rural Health.

Dr. Hansen-Schmitt graduated from Our Lady of Holy Cross College in New Orleans with a Bachelor of Science in Nursing, (1993). She arrived in New Orleans VA as a Health Professional Scholar graduate beginning her new career as a floor RN on the Telemetry Unit. She progressed to the Step Down Unit, then the Surgical Intensive Care Unit as a Certified Critical Care RN.

In 1998, she began to pursue her Master's Degree in Nursing at Louisiana State University Graduate School of Nursing as a Family Nurse Practitioner. She received funding through a mentorship program working with one of the VA Nurse Practitioners. She was assigned to the Inpatient Mental Health Unit as a Family Nurse Practitioner, providing primary care to those patients. She later received her Doctorate in Nursing Practice Degree from the University of Alabama at Birmingham in 2013 through the National Nursing Education Incentive (NNEI).

Dr. Hansen-Schmitt is a member of Sigma Theta Tau International, the Golden Key International Honor Society, the Hawaii Association of Professional Nurses, and the American Academy of Nurse Practitioners. She holds current American Nurses Credentialing Center (ANCC) certification as a Family Nurse Practitioner, and as a Board Certified Nurse Executive.

Portrait of Kathryn Ryder, MD


Deputy, Chief of Staff

Dr. Ryder was appointed Deputy Chief of Staff at the VA Pacific Islands Health Care System July, 2015. She received her medical degree in 1992 from the Yale School of medicine, completed an internship and residency at Boston Medical Center, and served as Chief Resident. She received board certification in Medicine from the American Board of Internal Medicine in 1996 and was recertified in 2007.

Prior to her medical degree, she earned a Bachelor's degree from Yale University and then a Masterís Degree in Epidemiology from the University of Tennessee Health Sciences Center in 2003. Her research publications are in osteoporosis. She received certification as a Patient Safety officer, participating in the Advanced Training Program in Patient Safety and Quality Improvement in Salt Lake City. Dr. Ryder worked at the University of Tennessee Health Sciences Center as an Associate Professor and joined the VA Memphis in 2006, where she taught hospital medicine and Patient Safety and Quality Improvement. She served as Deputy Chief of Medicine, then Acting Chief of Medicine at the VA Memphis. She became the Deputy Chief of Staff at the VA Memphis in 2012.