Bill Voloch

Bill Voloch

President and Chief Executive Officer
Wesley Medical Center

Bill Voloch is the president and chief executive officer at Wesley Medical Center. He is an innovative leader with more than 14 years of experience in hospital management.

Prior to joining Wesley, Voloch served as the chief financial officer at the Medical Center of Aurora in Colorado. He began his career with HCA in 1993 at Michael Reese Medical Center in Chicago.

Voloch graduated from Indiana University with a Bachelor of Science degree in accounting, and he and received his Master of Business Administration degree from Regis University.

Voloch has volunteered with the Rotary Club, as a Cub Scout den leader and with the Multiple Sclerosis Society.

He and his wife, Juli, have three sons and two daughters.


Tripp Owings

Tripp Owings

Chief Executive Officer
Wesley Woodlawn Hospital & ER

Tripp Owings is the chief executive officer at Wesley Woodlawn Hospital & ER. He began his career with HCA working in operations project management and decision support analyst roles. He also previously worked as a senior cost accountant with WellStar Health System and as an associate vice president at Morgan Keegan & Company.

Owings graduated from the University of Georgia with a bachelor’s degree in business administration and finance, and he received his master’s degree in business administration from Mississippi State University.

Owings is involved with the development and leadership of the Wichita Young Professionals.

He and his wife, Tijen, have two sons and a daughter.


Casey Guber

Casey Guber

Chief Operating Officer
Wesley Healthcare

Casey Guber is the chief operating officer for the Wesley Healthcare. He began his career with HCA working in facility labor management and providing administrative oversight to several clinics, hospital departments and services lines, including bariatric surgery, radiology and endoscopy. He also previously worked as a consultant for Huron Consulting and Stockamp and Associates.

Guber graduated from the University of Colorado at Boulder, Leeds School of Business with a bachelor’s degree in business administration, and he received his master’s degree in hospital administration from the University of Colorado Denver.

Guber’s community activities have included serving as a volunteer for Meals on Wheels, Kisses for Kyle, Habitat for Humanity, Judy’s House, The Gathering Place, The Hope Fun, Wishes for Wheels and Boots To Suits Mentor.  He currently services as a board member for the Wichita American Heart Association and Susan G. Komen Kansas. 


Nicole Castleberry

Nicole Castleberry

Chief Financial Officer
Wesley Healthcare

Nicole Castleberry is the chief financial officer for Wesley Healthcare.

Castleberry comes to Wesley after serving as the chief financial officer at HCA’s Lakeview Regional Medical Center in Covington, Louisiana. HCA is Wesley’s parent company. At the 167-bed Lakeview facility, Nicole was responsible for all financial areas including accounting, supply chain, medical records, revenue management, case management and patient access. She also has served as a vice president and controller/market director for finance at Parkridge Health System, and as an accounting manager and senior accountant at Life Care Centers of America, both in Tennessee.

Castleberry graduated from the University of Tennessee with a bachelor’s degree in finance and a master’s degree in business administration.

She and her husband, Chad, have two daughters.


Lowell Ebersole

Lowell Ebersole, DO

Chief Medical Officer
Wesley Healthcare

Lowell Ebersole is the chief medical officer
for Wesley Healthcare.

Ebersole graduated from the Via Christi Family Practice residency program in 2004 and began working as a hospitalist. He worked for Kansas Inpatient Services at several facilities including Wesley Medical Center. He became the medical director of Via Christi’s hospitalist program in 2013, serving as a hospitalist for Via Christi and Sound Physicians through 2018.

He graduated from Bethel College in Newton, Kansas, with a bachelor’s degree in chemistry. He received his doctor of osteopathy from Des Moines University in Des Moines, Iowa.

He and his wife, Patresa, have four children.


Jeremy Pauly

Jeremy Pauly

Associate Administrator
Wesley Healthcare

Jeremy Pauly is the associate administrator of Wesley Medical Center.

Pauly joined Wesley in 1999 as an emergency medical technician. He received his bachelor’s degree in nursing from Wichita State University and transitioned to an emergency room staff nurse in 2000. In 2006, Wesley opened its first freestanding emergency room, Wesley West ER, and Pauly was promoted to manager at that facility. Pauly has served as director of nursing for Wesley’s main emergency room, Wesley Pediatric ER and Wesley West ER. He was promoted to market director of Wesley’s emergency services in 2016 and then associate administrator in 2018.

Jeremy and his wife, Lacy, have a son.


Georgette Calma

Georgette Calma

Associate Chief Nursing Officer
Wesley Medical Center Women’s Services
Wesley Children’s Hospital

Georgette Calma is the associate chief nursing officer for Wesley Medical Center Women’s Services and Wesley Children’s Hospital.

Calma began her nursing career in lactation services at Georgetown Hospital in Georgetown, Texas, and then joined HCA’s North Texas Division hospital system. She continued working in lactation and family education services at Las Colinas Medical Center in Irving, Texas, and Medical Center of Lewisville in Lewisville, Texas, until 2012 when she joined Medical City Denton as their director of women’s services. She led the redesignation of the Magnet Accreditation and led the preceptor and RN internship programs at Denton before serving as Medical City Healthcare’s market director of education – women’s, infant’s and pediatrics service line.

Calma graduated from Concordia University in Austin, Texas, with a bachelor of arts in business management. She received her associate of science in nursing from El Centro College in Dallas, Texas, and her bachelor of science in nursing from the University of Texas at Arlington. Calma completed a masters of science in nursing leadership at Grand Canyon University in Phoenix, Arizona in 2018.

She and her husband, Chris, have a son and two daughters.


Jamie Logan

Jamie Logan

Interim Chief Nursing Officer
Wesley Medical Center

Jamie Logan is the interim chief nursing officer for Wesley Medical Center.

Logan received her associates in applied science nursing degree from Butler Community College and transitioned to a registered nurse. She was promoted to assistant nurse manager in 2012 and then to unit manager in 2013 before being named director of Wesley’s critical care services in 2017.

She received a bachelor’s degree in nursing from Tabor College in 2011 and is currently working on a master’s degree in healthcare management at Friends University.

Logan has served in her community as a team captain for the American Heart Association and as a volunteer with Good Samaritan Mobile Care.


Brian Swallow

Brian Swallow

Vice President of Surgical Services
Wesley Healthcare

Brian Swallow is the vice president of surgical services for Wesley Healthcare and leads the system’s surgical quality, service and growth initiatives. He is an experienced professional with more than 15 years of experience in management of surgical services.

Swallow graduated from Butler County Community College with an associate degree of nursing, and he received his bachelor’s degree in nursing and his master’s degree in business administration from Southwestern College.

Brian and his wife, Denise, have three children and five grandchildren.


Kellie Williams

Kellie Williams

Vice President of Finance
Wesley Healthcare

Kellie Williams is the vice president of finance for Wesley Healthcare. Williams comes to Wesley from the Medical Center of Plano/Medical City Frisco, an HCA facility located in Plano, Texas, where she served as the vice president of finance. She has also held the positions of financial controller at Dallas Regional Medical Center in Mesquite, Texas, and assistant controller at Plaza Medical Center of Fort Worth in Texas.

Williams graduated from Midwestern State University with a bachelor’s and master’s degree in business administration.

Williams has previously served as a member of Hope’s Door Financial Council and Hughston Elementary PTA, as well as coached an Upward youth basketball team.

She and her husband, Kent, have two sons.


James Stepien

James Stepien

Vice President of Business Development
Wesley Healthcare

James Stepien is the vice president of business development for Wesley Healthcare and works collaboratively across the Wichita market to lead and develop business strategies for services, facilities and operations at Wesley.

Stepien previously served as one of Wesley’s physicians relations and outreach managers, where he was instrumental in signing more than 50 rural Kansas hospitals to affiliation agreements providing partnership opportunities to Wesley Healthcare.

Prior to joining Wesley, Stepien worked as an income development specialist with the Wichita chapter of the American Cancer Society and then as a heart walk director for the Wichita chapter of the American Heart Association.

Stepien graduated from Friends University with a bachelor’s degree in business administration and a master’s degree in healthcare leadership.

Stepien’s community activities have included serving as a volunteer for Wichita’s Child Advocacy Center, March of Dimes, Dream Big Association and Hope Community Church.

He and his wife, Tiffany, have one daughter.


Sandy Schremmer

Sandy Schremmer

Vice President
Quality & Infection Prevention
Wesley HealthCare

Sandy Schremmer is the vice president of quality and infection prevention for Wesley Healthcare.

Schremmer began her nursing career at Wesley as a nurse tech in Wesley’s Post-Anesthesia Care Unit (PACU), later worked in Wesley’s Cardiac Intensive Care Unit (CICU), and served as a manager of Wesley’s Ambulatory Surgery Unit (ASU) and Pre-Op clinic. Schremmer than joined Via Christi hospitals serving in a variety of clinical roles from a manager of the medical-surgical and intensive care unit to director of patient safety and quality. She most recently served as a senior consultant and clinical performance partner at Premier, a healthcare management-consulting firm.

Schremmer graduated from Butler Community College in El Dorado, Kansas, with an associate’s degree in nursing and received a bachelor of science in health information management from the University of Kansas in Lawrence. She earned her master’s of business degree in health care leadership from Capella University in Minneapolis, Minnesota. Schremmer is certified in professional health care quality and is a Lean Six Sigma Greenbelt.

She and her husband, Doug, have an adult son and daughter.