Leadership & Board Members

Irene Dumanis, BS, Finance, joined Weiss Memorial Hospital in May, 2019, assuming the role of Chief Finance Officer (CFO) for the Pipeline Health Chicago Market. In November of 2020, she was promoted to the role of Chief Executive Officer (CEO) for Weiss and the Chicago physician group. She brings 15 years of health care and financial experience to the organization and in the CEO role, continues to bring more stabilization and cost efficiency tactics to the hospital.

Prior to this, Ms. Dumanis was the CFO for Technology Solutions in Bannockburn, IL. She has also served as CFO for Community First Medical Center in Chicago and has held leadership finance positions for FDH Velocitel in Northbrook, Vista Health System in Waukegan, IL, and Lincoln Park Hospital in Chicago. Her early career experience includes positions at Wolf & Company, PC, Boston, MA, and Arthur Anderson, LLP in Chicago.

Ms. Dumanis earned her Bachelor of Science degree in Accounting from DePaul University. Fluent in Russian, Ms. Dumanis grew up in Chicago’s northwest community and is a proud first-generation American.

David is a healthcare consultant who specializes in healthcare finance and operations, as well as strategy development, design and implementation. He spent more than 20 years with Tenet Healthcare, which operates more than 65 hospitals across the United States.

Through February 2019, he oversaw all aspects of finance and operations as Tenet Health’s Group Chief Financial Officer and Chief Operating Officer for the Michigan and Illinois operations, which included 10 hospitals in metro Detroit and Chicago. Prior to that, he served as Vice President of Operations for Tenet’s 70 hospitals and as Chief Financial Officer and Chief Operating Officer for the 22 Western Region hospitals.

David earned an MBA and a bachelor’s degree in Finance and Accounting from the University of Tampa. He is a certified public accountant and a Fellow of the Healthcare Financial Management Association..

Suzanne Pham, MD, FAAP, serves as the Associate Chief Medical Officer at Weiss Memorial Hospital and has been part of the Weiss community since 2011. She is board certified in both internal medicine and pediatrics and completed her medical school training at the University of Oklahoma and residency training at Rush University Medical Center.

After completing her residency, Dr. Pham joined the Weiss family as the program director of the hospital medicine program and an associate program director of the internal medicine graduate medical education program. Helping prepare the next generation of physicians is a priority for Dr. Pham and she has received multiple awards as Teacher of the Year throughout her time in medicine. Dr. Pham also has served as a team doctor for the WNBA Chicago Sky.

Dr. Pham has been recognized by Illinois Comptroller Susana Mendoza as a 2020 Asian Pacific Heritage Month Honoree. She continues to practice clinical medicine as a hospitalist full time while focusing on quality improvement and patient safety and satisfaction at the hospital. During the COVID-19 pandemic, Dr. Pham serves as the medical director of the COVID-19 response at Weiss, working with the clinical teams to deliver the highest level of care in an academic hospital for the Uptown/Edgewater and surrounding communities. She is actively affiliated with the American College of Physicians, American Academy of Pediatrics, American Medical Association and Society of Hospital Medicine.

Yolanda Coleman serves as the Chief Nursing Officer for Weiss Memorial Hospital.

Tamara Schaeffer, BSN, RN, JD, joined Weiss Memorial Hospital as the Executive Director of Quality in February 2022. As both a Registered Nurse, and an Attorney with more than 20 years of healthcare experience, she has dedicated her career to working with patients, clinicians, physicians and communities to make healthcare better, safer, and more efficient. She has also spoken nationally on the topics of patient safety and healthcare quality.

Tamara earned her Bachelors of Science in Nursing from Deaconess College of Nursing and her Doctorate of Jurisprudence from Southern Illinois University School of Law.