William H. Mills | 412-822-3314
Interim Network Director
William H. Mills has been the director of the Altoona VA Medical Center since April 2012. He was appointed to serve as the interim director of VISN 4 beginning on August 10, 2015.
Mr. Mills began his VA career in 1974 as a recreation therapist at the VA Medical Center in Memphis, Tennessee. After completing VA's human resources management internship program, he has led human resources departments in a variety of VA medical centers, including VA Pittsburgh Healthcare System. He has also served as the lead human resources officer for VISN 4.
Mr. Mills has served extended appointments as the interim associate director at both VA Pittsburgh and the Wilmington VA Medical Center in Delaware. He has also served as the interim director at the Wilkes-Barre VA Medical Center. Before moving to Altoona, Mr. Mills was the associate director at the Lebanon VA Medical Center.
Mr. Mills was born and raised in Jacksonville, Florida. He received a bachelor's degree from the University of Florida and a master's degree from the University of Memphis.
Carla Sivek | 412-822-3314
Deputy Network Director
Carla Sivek oversees operational aspects of VISN 4, including finance, logistics and capital assets.
David S. Macpherson | 412-822-3309
Chief Medical Officer
Dr. Macpherson oversees all clinical programs in the inpatient and outpatient settings along with research and education activities in VISN 4.
James F Baker | 412-822-3322
Chief Financial Officer
James Baker directs all financial management activities within VISN 4 to ensure compliance with departmental and Veterans Health Administration financial policies.
Moira M. Hughes, FACHE | 412-822-3294
Quality Management Officer
Moira Hughes oversees operations for VISN 4's quality management programs, which include performance measurement, internal and external accreditation, utilization management and Veteran satisfaction.
David E. Cowgill | 412-822-3318
Dave Cowgill directs all media, communications and outreach initiatives as well as all stakeholder and congressional relations for VISN 4.
Kimberly M. Butler, MPH | 412-822-3316
Kimberly Butler plans and facilitates projects, reports and initiatives for the network office as well as provides oversight and advice for administrative and logistical activities in VISN 4.