Leadership Team

Mike DiToro_BW_6_16_14_Small

Michael J. Ditoro, Pharm.D

Interim Chief Executive Officer
Chief Operating Officer
Westlake Hospital

Dr. Michael J. Ditoro, Pharm.D, brings his excellent leadership skills, knowledge of lean management and expertise in general healthcare operations to his role as Chief Operating Officer at Westlake Hospital and West Suburban Medical Center.  Dr. Ditoro is responsible for day-to-day hospital operations for numerous service lines and takes an active role as the executive sponsor of several improvement projects throughout the hospital.

Prior to his role as Chief Operating Officer, Dr. Ditoro served as Vice President of Pharmacy Services for 4 Chicago area hospitals including; Westlake Hospital, West Suburban Medical Center, MacNeal Hospital and Weiss Memorial Hospital.  A Doctor of Pharmacy, Dr. Ditoro also has experience working as a Clinical Pharmacist, Director of a Drug Research Center as well as both Assistant Director and Director of Pharmacy Services at hospitals across the country and has his Pharmacist License in both Illinois and Massachusetts.

Dr. Ditoro has published a number of articles related to Pharmaceutical practice, has experience teaching Pharmacy at the college level and is a member of several professional organizations including the American Society of Health-System Pharmacists, the Illinois Council of Health-System Pharmacists and the American College of HealthCare Executives. 

Robert Chase_CMO_11_12_2_Small

Robert A. Chase, MD, MS, FACP

Chief Medical Officer
Westlake Hospital & West Suburban Medical Center

Dr. Robert A. Chase, MD, MS, FACP, brings over twenty-five years of extensive and diverse experience in healthcare to his role as Chief Medical Officer at Westlake Hospital and West Suburban Medical Center.  Dr. Chase is a published author, educator, executive, leader and clinician with expertise in infectious diseases, infection control, clinical epidemiology and population health.

Dr. Chase received his Doctor of Medicine degree from Rush Medical College as well as a Master of Science degree in Population Health and Administrative Medicine from the University of Wisconsin. He is certified by the National Board of Medical Examiners and by the American Board of Internal Medicine for both Internal Medicine and Infectious Diseases.

Prior to serving as Chief Medical Officer at Westlake Hospital and West Suburban Medical Center, Dr. Chase has served as Chief Medical Officer, Chief Quality Officer, Vice President for Clinical Quality, Vice President and Chief Science Officer and Medical Director of The Institute of Health and Care Management at healthcare organizations across the country. He has also worked as a Private Practice physician and served as an Instructor at Rush Medical College, The University of Iowa and Northwestern University.

Dr. Chase is very active in the Medical Community and is affiliated with a number of professional organizations.  He currently serves as a Fellow for the American College of Physicians and the Society of Healthcare Epidemiology of America, and is a Member of the Sigma Xi Scientific Research Society, the Infectious Diseases Society of America and the Academy for Health Services Research and Health Policy.

Ruth Matthei_CNO_WL_Small

Ruth Matthei, RN, MSW

Chief Nursing Officer
Westlake Hospital

Ms. Ruth M. Matthei, RN, MSW, brings over 45 years of outstanding clinical and leadership experience to her role as Chief Nursing Officer at Westlake Hospital.

Her bedside Nursing experience ranges from the Emergency Room, to the ICU, Medical-Surgical, to Coronary and Behavioral Health at hospitals across Illinois.  Ms. Matthei has also served in numerous leadership roles including Director of Behavioral Health Services, Director of Patient Care Services, Director of Nursing and Director of Quality before assuming her role as Chief Nursing Officer.

Ms. Matthei is both a Registered Nurse and Licensed Clinical Social Worker with her Diploma in Nursing from Methodist-Kahler School of Nursing, a Certificate in Family Therapy from Philadelphia Child Guidance Center and a Master’s Degree in Social Work from George Williams College.


Jennifer Lamont

Chief Financial Officer
Westlake Hospital & West Suburban Medical Center

Ms. Jennifer Lamont brings her analytical, financial, and leadership skills to Westlake Hospital and West Suburban Medical Center each and every day, in her role as Chief Financial Officer.  With over a decade of experience in finance, Ms. Lamont works to ensure hospital strategic plans, annual budgets and productivity are on point, and specific hospital operation projects have the support they need.

Ms. Lamont has been part of our team since 2011, first serving as an Associate Controller of Westlake Hospital and then as the Director of Financial Operations for both Westlake and West Suburban Medical Center. She is a Certified Public Accountant with a Degree in Business Administration from Saint Mary’s College in Indiana.

When she is not in the office, Ms. Lamont enjoys volunteering at various non-profit organizations in the area.