Kathleen Bechtel, MSN, RN

Vice President of Patient Care Services, Chief Nursing Officer

Kathy Bechtel, MSN, RN, joined Froedtert Hospital’s senior management team as Chief Nursing Officer (CNO) in fall of 2009. She also serves as vice president of Patient Care Services. In these roles, she leads responsibilities for both the inpatient and outpatient nursing practice of more than 2,000 nurses. She sets strategy and oversees service, quality, growth and finance within nursing and works in partnership with the Medical College of Wisconsin physicians.

Kathy came well-prepared to take on the challenges of nursing excellence here, including ensuring that Froedtert Hospital maintains its status as a Magnet hospital, an award given by the American Nurses’ Credentialing Center for strength and quality of nursing. She spent 19 years at Regions Hospital in St. Paul, Minnesota, a 427 bed tertiary acute care teaching center with a Level I trauma center and a nationally verified burn center.

Kathy began her career at Regions Hospital as the trauma nurse coordinator and subsequently held leadership positions in the trauma program, burn rehabilitation, care management, nursing practice, nursing education, endoscopy and oncology. She also served as Director of Nursing Critical Care and Progressive Care.

Kathy received a Bachelor of Science degree in Nursing from the University of Wisconsin-Madison and a Master of Science degree in Nursing, with a leadership and management focus, from Metropolitan State University in St. Paul, Minnesota. She has received multiple nursing awards, has held numerous clinical certifications and presented or taught courses on clinical and management topics to local, state and national audiences. She is a member of the American Association of Critical Care Nurses and was a former member of Minnesota Organization of Leaders in Nursing. 


Elizabeth Behrens, MS, RN

Vice President of Quality, Patient Safety & Performance Improvement

Elizabeth Behrens MS, RN has joined Froedtert Hospital as vice president for Quality, Patient Safety and Performance Improvement. In her role, Liz will work closely with the senior leadership team to improve quality and patient safety hospital-wide. Liz will also provide oversight for Patient Relations, Spiritual Care and Infection Prevention, as well as guidance for all hospital regulatory requirements.

Liz has more than 20 years of experience in quality leadership positions and has led many successful interdisciplinary initiatives in population health, advanced care planning, case management across the continuum, patient safety training and infection prevention.

Prior to joining Froedtert Hospital in February 2015, she held the corporate position of vice president of Quality and Performance Improvement for 10 years at NorthShore University Health System in Evanston, Illinois. In that role, Liz was responsible for the quality and performance oversight of the health care enterprise comprised of four hospitals and a 2000 member physician group including a multispecialty group practice with more than 75 locations.

Before her experience at NorthShore, Liz spent five years as the vice president of Quality and Performance Measurement at Rockford Health System in Rockford, Illinois. Liz has also taught at the University of Chicago President’s Lecture Series and at the Northwestern University Graduate Studies program in healthcare quality and patient safety. She is an ICU nurse by background with an advanced nursing degree as a clinical nurse specialist. Liz received her bachelor's and master’s degrees in Nursing from Northern Illinois University.


Catherine Buck, MSN, RN 

President of Froedtert Hospital

Catherine J. Buck joined Froedtert Hospital in 1982 and was appointed president of the hospital in 2010. She was executive vice president and chief operating officer from 1999 until 2010. Since joining Froedtert Hospital, Cathy served in progressive leadership capacities, pioneering numerous patient safety and quality improvements. 

Her work in bringing Six Sigma and Lean to health care has been recognized nationally through numerous presentations, awards and business media.

Buck received her bachelor’s degree in nursing from DePaul University in 1976 and her master’s degree in nursing from Rush University in 1979. She worked as a staff nurse at Swedish Covenant Hospital, Rush Presbyterian St. Luke’s and the University of Chicago, prior to joining Froedtert Hospital.

Read Cathy's full bio.


Susan Collins, Vice President

Susan Collins

Vice President, Clinical Service Lines

Susan Collins, MBA, RN, FACHE, joined Froedtert Hospital on Dec. 10, 2018, as the vice president for Clinical Service Lines. She is responsible for setting strategies that advance the mission to deliver outstanding care while providing tactical operations of the system’s heart, vascular and transplant services. In her role, she is accountable for the safety, health and quality of services for patients while driving the development and growth of service line programs.

Susan is a Registered Nurse with a Master’s degree in Business Administration from Baker College in Flint, Michigan. Susan’s passion for health care leadership led her to earn Fellow status in the American College of Healthcare Administration in 2014.

Susan is trained in Six Sigma and lean methodologies. She is passionate about the influence of organizational structure on quality and value-based care. She has presented nationally and internationally on program development and organizational structure for strategy and quality care.

Prior to joining Froedtert Health, Susan held the corporate role of executive administrative director of the Heart, Lung, and Vascular Institute for UC Health and the University of Cincinnati. During her time as executive administrative director, she was responsible for driving the integration of research, education and clinical care across the system. Along with her work in the University of Cincinnati, Susan has had experience developing and leading similar leadership positions at for the All Children’s Health System at Johns Hopkins in various institutes such as the Pediatric, Heart, Maternal, Fetal, and Neonatal Institute.


Gary Colpaert

Vice President of Clinical and Support Services

Gary J. Colpaert is vice president for Clinical and Support Services. In this role, Gary has executive responsibility for the Eye Institute, Respiratory Therapy, Transport Services, Food Service, Security and Safety, and Environmental Services on the Froedtert Hospital campus.

Gary joined Froedtert Hospital in February 2000 as administrative director of the Eye Institute. The Eye Institute was a good orientation to Froedtert & MCW health network as it is a joint management role and a busy environment with more than 50,000 clinical visits, 2,400 surgeries and research labs located within the building.

Gary was later appointed vice president of Perioperative Services in February of 2005 and transitioned to his current role.

Prior to joining Froedtert Hospital, his career included serving as executive vice president for the BloodCenter of Southeastern Wisconsin and vice president of clinical and support services for Children’s Hospital of Wisconsin. Gary has a master’s degree in health care administration from the University of Wisconsin and a B.A. in business from the University of Minnesota. 


Eric Conley

Eric Conley

Senior Vice President and Chief Operating Officer

Eric Conley joined Froedtert Hospital as senior vice president and chief operating officer on July 9, 2018. He is responsible for the planning, development and oversight of the day-to-day operations of Froedtert Hospital, leading new operational initiatives, establishing best practices, operational standardization and optimization, and integrating health system initiatives.

As COO, Eric will lead the continued financial and operational efficiencies, promote a culture of accountability and continued process improvement, and sustain and build Froedtert Hospital’s standing as a preeminent academic referral center. His direct reports are Allan Gray, vice president of perioperative services, Kathy Bechtel, vice president of patient care services and chief nursing officer, Gary Colpaert, vice president of clinical support services and Bethany LoPresti, PhD, executive director of Behavioral Health.

Eric has significant experience in leading academic medical center and health system operations. Prior to joining Froedtert Health, Eric served as vice president of service lines and surgical services for KentuckyOne Health, where he negotiated the academic affiliation agreement with the University of Louisville Medical School and led historic high volume growth in transplant services. He previously served as vice president of operations for Northwestern Memorial Hospital, the 854-bed academic medical center and primary teaching hospital for Northwestern University. His achievements at NMH included expanding ORs and improving OR utilization and implementing systems which increased patient satisfaction and staff engagement scores.

Eric earned his master’s in health care administration from The Ohio State University. He has supported his communities through leadership in organizations such as the YMCA, chambers of commerce and nonprofit arts and social services organizations.


John Ernst, Vice President

John Ernst

Vice President of Operations

John Ernst joined Froedtert Hospital as vice president of Operations on Oct. 28, 2019. John has executive responsibility for Perioperative and Surgical Services, Pre-Admission Testing, Anesthesiology, the Emergency Department, Trauma Center and the Observation Unit.

John has served in leadership roles at Northwestern Medicine in Chicago for more than 17 years. There he served as manager for patient access, diagnostic testing, cardiovascular services, musculoskeletal services and outpatient oncology services, as well as director of operations. Most recently, he served as vice president of service lines at KentuckyOne Health, and as an independent consultant.

He received a Master’s of Healthcare Administration and Bachelor of Arts in Advertising and Public Relations from the University of St. Francis in Joliet, Ill. He also has a green belt certification in Six Sigma.


Siddhartha Singh, MD

Chief Quality Officer

Siddhartha Singh, MD, MS, an internal medicine physician at Froedtert Hospital and associate professor of medicine at the Medical College of Wisconsin, was appointed as the chief quality officer for Froedtert Hospital and associate dean of Quality in Clinical Affairs for the Medical College Physicians in October of 2015.

In this role Dr. Singh provides oversight and direction to the joint quality efforts of Froedtert Hospital and Medical College Physicians. He is responsible for the strategic vision, long-term planning and overall accountability for quality outcomes and patient relations functions of Froedtert Hospital. Dr. Singh works collaboratively with the transformation office of Medical College Physicians on performance improvement and change management.

Previously Dr. Singh served as the associate chief medical officer for Froedtert Hospital and Medical College Physicians. During his tenure he demonstrated an impressive track record in clinical quality and resource management for the hospital’s outpatient and inpatient facilities.

Dr. Singh received his medical degree from the All India Institute of Medical Sciences in 2000 and his Master of Science degree in epidemiology from the Medical College of Wisconsin in 2009. He completed his internal medicine residency at St. Francis Hospital in Evanston, Ill., and a fellowship in general internal medicine at the Medical College of Wisconsin.


Michael Stadler, MD, Interim Chief Medical Officer

Michael Stadler, MD, FACS

Interim Chief Medical Officer

Dr. Michael Stadler, MD, FACS, joined the senior leadership team at Froedtert Hospital as interim chief medical officer on Oct. 1, 2019. Dr. Stadler was most recently associate CMO of Froedtert Hospital. He also continues his current roles as associate professor of Otolaryngology and Communication Sciences, and chief of the Division of Head and Neck Surgical Oncology and Reconstruction at the Medical College of Wisconsin.

He joined Froedtert & MCW health network in July 2012 after completing his fellowship in Head and Neck Oncology/Microvascular Reconstruction at Washington University in St. Louis. He served as assistant professor of Otolaryngology and Communication Sciences at the Medical College of Wisconsin from 2012 to 2018, when he was promoted to associate professor. He has led the Division of Head and Neck Surgical Oncology and Reconstruction since 2016 and has served as associate CMO of Froedtert Hospital since 2018.

Dr. Stadler has been committed to enhancing the quality and safety of patient care throughout his career. He completed the Medical College of Wisconsin’s Faculty Scholars in Quality and Patient Safety program in 2013 before serving from 2013-2015 as the Patient Safety Quality Officer in Otolaryngology and Communication Sciences. Since 2017, he has been the inpatient medical director of one of the Surgical Specialties units, in the Center for Advanced Care at Froedtert Hospital, where he serves as physician lead for the unit’s Accountable Care Team. Dr. Stadler will continue his clinical practice with a focus on the surgical treatment of upper aerodigestive tract and salivary gland malignancies, as well as advanced skin cancer care.

Dr. Stadler completed his Otolaryngology-Head and Neck Surgery residency at the University of North Carolina in Chapel Hill. He earned his medical degree and Bachelor of Science degree at the University of Wisconsin-Madison.


Wendy Stulac Motzel

Vice President of Ambulatory Services

Wendy Stulac Motzel joined Froedtert Health as vice president for Ambulatory Services in June 2015. In her role, Wendy has direct responsibility for operations of Froedtert Hospital ambulatory clinics and Women’s Health services. In addition, she works closely with the Department of Medicine on quality, clinical efficiency and programmatic development, and with her counterparts on overall operational effectiveness at Froedtert Hospital.

Prior to joining Froedtert Health, Wendy held several leadership positions in the health care industry with a strong emphasis in practice management, clinical operations, process improvement, business development, clinical quality, patient safety and regulatory compliance. Most recently Wendy was administrative center director at the University of Minnesota Medical School serving the departments of orthopaedics, otolaryngology, surgery and urology. Her previous roles included operations executive for Outpatient Services and director of Imaging Services.

Wendy has a Master’s Business Administration from the University of St. Thomas, Minneapolis, Minn., and a Bachelor of Science in Health Care Management from St. Mary’s University, Winona, Minn. She is also a graduate of St. Mary’s School of Radiologic Technology, Duluth, Minn. She is certified in Lean and is a Six Sigma Green Belt.

Wendy is community-minded and extends her knowledge and time to mentoring emerging business leaders and participating in community volunteer programs. She currently serves on the Fraser Advisory Board and is a member of the Women Business Leaders in Health Care and the Women’s Health Leadership Trust.

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