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VA Northern California Health Care System


Leadership Team

Portrait of David Stockwell

David Stockwell | 916-843-9058


Mr. David Stockwell was appointed as Director, VA Northern California Health Care System (VANCHCS), in October 2013.

Mr. Stockwell was appointed as Deputy Medical Center Director/ Portland VAMC in 2006 where he served three extended terms as Acting Medical Center Director. He also served as Acting Medical Center Director/Boise VAMC. Mr. Stockwell was instrumental in opening 8 outpatient clinics at Portland where the facility achieved the highest 5-year growth in Veterans users of any complexity 1A facility in the country and was recognized by The Joint Commission as one of the top hospitals in the US in 2011-2012.

From 2001 to 2006, he was the Associate Director of the Alaska VA Health System and Regional Office. He participated in VISN 20’s after-hours tele-health evaluation, Fee Basis Hot team, ACA steering committee, Associate Director Council, Capital Asset Committee, VA IT Advisory Council, and as a VA/DoD joint venture national speaker. From 1998 to 2001, he worked for the VANCHCS/San Francisco Joint Planning Office which included planning oversight of the new Sacramento VAMC.

Mr. Stockwell received a degree in Business Administration from Portland State University and an MHA from Baylor University in 1998, where he also participated in the VA Graduate Healthcare Administrative Training Program/San Antonio. He began his VA career in 1988 and has served in Portland, Anchorage, Little Rock, Tuscaloosa, Martinez and Sacramento. He served as a member of the VA Supply Automation Advisory Network from 1995 to1997 and as a member of the national VA Logistics work group in 1996. He was the chairperson of the VISN 20 Associate Director Council and Portland VAMC Executive Leadership Board. Mr. Stockwell is a 2004 graduate of the VA Health Care Leadership Institute and a 2003 graduate of the Interagency Institute for Federal Healthcare Executives; he is a certified fellow in the VHA mentor program.

Portrait of Dawn B Erckenbrack

Dawn B Erckenbrack | 916-366-5337

Associate Director

Dr. Dawn Erckenbrack was appointed Associate Director, Sacramento Valley Division, in May 2015. A retired Army Officer, Dr. Erckenbrack’s military assignments included The Office of the Assistant Secretary of Defense (Health Affairs), Walter Reed Army Medical Center; 44th Medical Brigade, 18th Airborne Corps, Fort Bragg, NC; 46th Combat Engineer Battalion, Fort Rucker, AL; and Fort Knox, KY among others. Dr. Erckenbrack served in The Kingdom of Saudi Arabia (Operations Desert Shield), the Republic of Iraq (Operation Desert Storm), as well as in the Republic of Honduras. After retiring from the Army, Dr. Erckenbrack served as the CEO of Jewish Medical Center South in Shepherdsville, KY and as the Deputy for Leader Development, US Army Human Resources Command, and Fort Knox, KY.
Dr. Erckenbrack is a Fellow in the American College of Healthcare Executives (ACHE) and is Board Certified in Healthcare Management. She holds a Doctorate Degree in Educational Leadership, with a cognate area of health policy, from The George Washington University and a Master’s Degree in Healthcare Administration from Baylor University. She is also a graduate of the U.S. Army Command and Staff College and is the recipient of the ACHE’s Outstanding Military Healthcare Executive of the Year Award and the ACHE’s Executives Regents Award. Dr. Erckenbrack’s military awards and decorations include the Legion of Merit, the Meritorious Service Medal (three oak leaf clusters), and the Joint Service Commendation Medal, among others, as well as campaign ribbons associated with service in Desert Shield and Desert Storm. She has earned the Expert Field Medical Badge and the Parachutist Badge. She is a member of the Order of Military Medical Merit and was awarded the “9A” Proficiency Designator by the Army Surgeon General. Dr. Erckenbrack has worked in a broad array of healthcare activities, including finance, research, practice management, contracting, hospital administration, and network development.

Portrait of Timothy Graham

Timothy Graham | 925-372-2015

Associate Director | East Bay Division

Mr. Timothy Graham was appointed Associate Director, East Bay Division, in November 2016. Mr. Graham previously served as the Acting Associate Director at the VA Central California Health Care System from November 2015 until May 2016. Mr. Graham comes to VA Northern California from VA’s Central Office in Washington, D.C. where he served as Director of the Veterans Health Administration Freedom of Information Act Office since 2008. Previously, Mr. Graham served as a Privacy Specialist in the VHA Privacy Office and as the Assistant Compliance Officer and Privacy Officer at the Philadelphia VA Medical Center. Mr. Graham began his VA career in 2003 as a Presidential Management Fellow where he served as a Special Assistant to the Director of the Philadelphia VA Medical Center in Philadelphia, Pennsylvania until his graduation from the program in 2005.

Mr. Graham holds a Juris Doctor degree from the University of Tulsa, in addition to a Master of Laws in Health Law from Widener University and a Bachelor of Arts in English from Eastern Kentucky University. Mr. Graham is a 2010 graduate of Leadership VA and a 2012 graduate of the VA Health Care Leadership Institute.

Portrait of William T. Cahill, MD

William T. Cahill, MD | 916-843-9045

Chief of Staff

Dr. William Cahill is a neurologist with over twenty five years of clinical experience in various settings, including Air Force, VA, university, and community hospitals. Dr. Cahill brings a unique blend of leadership, management and people skills.

Dr. Cahill received a B.S. in Biology (Cum laude) from Georgetown University, Washington, D.C., in 1975, and his M.D., also from Georgetown, in 1979. He completed an Internal Medicine Internship at Thomas Jefferson University Hospital in Philadelphia in 1980 and his residency in Neurology at Georgetown University Medical Center in 1983. Dr. Cahill went on to complete a Fellowship in Clinical Neurophysiology at Duke University Medical Center in 1986. He is Board Certified by the American Board of Psychiatry and Neurology, and the American Board of Clinical Neurophysiology.

Dr. Cahill practiced as a Staff Neurologist at Keesler USAF Medical Center, Keesler AFB, Mississippi, from 1983-1985. He then went on to private practice in Neurology from 1988-1991. He served as Assistant Professor in the Department of Neurology at the University of Cincinnati Medical Center from 1991-2003. He joined the Cincinnati VA Medical Center as a Neurologist in 1991 and became Chief of Neurology there in 1993. He became Chief of Staff at the VA Central California Health Care System in December 2003, where he also served as Assistant Dean and Health Sciences Associate Clinical Professor of Neurology at the University of California San Francisco – Fresno.

In 2008, Dr. Cahill joined VA Northern California Health Care System as the Chief of Staff. Dr. Cahill adds depth and experience to the VA Health Care System, particularly in the management of patients with epilepsy. With his background in operations management, he brings experience in improving access to care for veterans in the outpatient clinics and for those needing inpatient services.

Portrait of Kathryn K Bucher

Kathryn K Bucher | 916-366-5338

Associate Director, Patient Care Services/Nurse Executive

Ms. Kathryn K. Bucher, RN, MSN, NE-BC was appointed to serve as Associate Director/Patient Care Services of the VA Northern California Health Care System (VA NCHCS) in October, 2014. She comes to VA Northern California from the New Mexico VA Healthcare System centered in Albuquerque, New Mexico where she served as the Associate Director, Patient Care Services/Nurse Executive. Ms. Bucher has many years of clinical and management experience in healthcare settings in both the VA and private sector, including two tours as the Chief Quality Officer for VISN 22 (Southern California and Nevada) and Clinical Director of Education, Training, and Development at the Southern Arizona VA Healthcare System. She will complete her Doctorate in Nursing Practice from University of New Mexico in the Spring of 2015. Ms. Bucher has a Master’s of Science in Nursing Administration from San Diego State University, and a Bachelor’s of Science in Nursing from University of California San Francisco. Ms. Bucher began her VHA career at the VA San Diego in 1986, as the Nurse Recruiter, taking on additional roles of Associate Chief Nursing for Acute Care, Executive Assistant to the Director for Total Quality Improvement and Chief of Quality Management/ Performance Improvement. Ms. Bucher stepped away from the VA for three years to teach in the BSN nursing program at Humboldt State University and returned to the VA mission, caring for Vets like her own dad. She has been engaged in many national and Network committees and projects, including most recently the National Center of Organizational Development design of a ‘constructive conflict’ educational venue, support for the Office of Nursing Service Evidence-based Practice Initiative, and acquisition of a VA Nursing Academy Program in Albuquerque. She has a reputation for excellence in group facilitation, strategic planning, and innovation in care delivery, a deep love for everything Lean, and a passion for creating a learning culture.