Our Leadership
Clinical Board of Directors

Paul Merrick, MD, Chief Physician Executive and Chairman, Duly Health and Care
Dr. Paul Merrick, a board-certified and renowned urologist, serves as the Chair of the Clinical Board, Co-Chairman of the Duly Health and Care Board and Chief Physician Executive. In his roles, Dr. Merrick leads the Board and physicians in their goal of making healthcare better for patients and communities by offering high-quality and compassionate care. He ensures that Duly’s physician-driven approach continues to lead to exceptional physician engagement and improved patient outcomes.
He has been in practice since 1994, was a founding physician when Duly Health and Care started as DuPage Medical Group in 1999 and has been leading the physician organization since 2009. He previously served as chairman of the Urology department for 13 years; he also previously served as President and Treasurer of the Clinical Board. Dr. Merrick earned his medical degree from Rush Medical College and completed his residency at Rush University Medical Center, where he served as chief resident of urology.

Christina E. Bratis, MD, President, Clinical Board
Dr. Christina Bratis, a hospitalist board-certified in internal medicine, serves as President of the Clinical Board of the Duly Health and Care physician organization. Dr. Bratis joined Duly Health and Care in August 2009 and has served on the Clinical Board of Directors since 2017. She has held many other leadership roles including that of Hospitalist Department Chair from 2014 – 2018 and Chair of several Board Committees.
Within the community, Dr. Bratis played an instrumental role as the Clinical Chief of Staff of the McCormick Place Alternate Care Facility, the first local field facility built to address the city of Chicago and state of Illinois’ COVID-19 response.
She earned her medical degree from Rush Medical College, completed her residency at the University of Illinois at Chicago, and served an additional year there as chief resident in internal medicine. She is affiliated with Advocate Good Samaritan Hospital, Edward Hospital, Elmhurst Hospital and Northwestern Medicine Central DuPage Hospital.

Juliet Fallah, MD, Vice President, Clinical Board
Dr. Juliet Fallah, board-certified in radiology, serves as Vice President of the Clinical Board of the Duly Health and Care physician organization.
Dr. Fallah is part of the radiology team and served as the organization’s first Radiation Safety Officer, a role she held from 2009 – 2020. This critical role was created as Duly began its molecular imaging/nuclear medicine program that has grown to serve patients across Duly’s service area. She developed policies and implemented protocols to minimize and track imaging radiation exposure for patients and clinicians. Dr. Fallah has been practicing at Duly Health and Care for several years, following her work at Advocate Good Samaritan Hospital where she developed the PET/CT program as well as the CT angiography program.
She completed her fellowship training in chest imaging at the Mallinckrodt Institute of Radiology at Barnes-Jewish Hospital in St. Louis.

Shilpa Reddy Cherukupally, MD, Treasurer, Clinical Board
Dr. Shilpa Reddy Cherukupally, board-certified otolaryngologist, serves as Treasurer of the Clinical Board of the Duly Health and Care physician organization. Dr. Cherukupally has more than 15 years of experience within her specialty. Practicing at Duly Health and Care since August 2005, she previously served as Director of Pediatric Otolaryngology at Cornell Medical Center/New York Presbyterian Hospital as well as the Assistant Professor of Otolaryngology Head and Neck Surgery at Cornell Medical School.
She received her undergraduate degree from Duke University and her medical degree from Baylor College of Medicine. She completed her residency through Harvard Medical School at the Massachusetts Eye and Ear Infirmary and completed her fellowship training in Pediatric Otolaryngology at University of Chicago Comer Children’s Hospital.

David Dungan, MD, Secretary, Clinical Board
Dr. David Dungan, board-certified in internal medicine, pediatrics, and culinary medicine, serves as Secretary of the Clinical Board of the Duly Health and Care physician organization. Dr. Dungan is an experienced internist and pediatrician who specializes in high quality personalized healthcare for all ages.
Dr. Dungan joined Duly in 1999 as one of DuPage Medical Group’s founding physicians; outside of his medical practice, he chairs the Quality Assurance and Utilization Management Committee of Duly Health and Care. In addition, he serves on the board of the DuPage Health Coalition representing Duly Health and Care, is newly assigned to the Clinical Practice Committee for the Culinary Medicine Specialist Board, and is a former board chair for FORWARD (Finding Opportunities that Result in Wellness for All Residents of DuPage), a 501c3 charitable organization which was dedicated to building community-based systems to counter the growing problem of chronic disease and health disparities. Dr. Dungan is also a Fellow of the American Academy of Pediatrics and a Fellow of the American College of Physicians.
He received his medical degree from Loyola University Stritch School of Medicine in Maywood. Dr. Dungan completed his combined residency in internal medicine and pediatrics at Loyola University Medical Center/Foster McGaw Hospital. He is affiliated with Advocate Good Samaritan Hospital.

Eva R. Chatman, MD
Dr. Eva Chatman, a board-certified physician in Family Practice, serves on the Clinical Board of the Duly Health and Care physician organization. She joined Duly in 2018 as a primary care physician with an ethos of putting patients first. Dr. Chatman’s work with Duly has included membership on several committees including serving as a founding member and joint chair of the Diversity Equity and Inclusion committee where she worked to establish a transfer pipeline for underserved and underrepresented college students to understaffed roles within Duly Health and Care’s medical and business units.
Upon completion of her medical degree from the Medical College of Wisconsin, Dr. Chatman completed her residency at Saint Louis University in collaboration with Scott Airforce Base in Belleville, IL. Prior to joining Duly, Dr. Chatman served 10 years as a physician in the United States Airforce while earning the rank of Major. As a decorated officer, Dr. Chatman enhanced her leadership skills, including serving as Surgeon General of the 20th Medical Group. During her time in active duty, Dr. Chatman deployed overseas to a combat zone as lead physician and commanding medical officer in one of the busiest medical regions in Africa.

Thomas Gallagher, MD
Dr. Thomas Gallagher, a board-certified internal medicine physician, serves on the Clinical Board of the Duly Health and Care physician organization. He was one of the founding members of DuPage Medical Group in 1999 and has practiced in the Hinsdale area throughout his career which began in 1992. Dr. Gallagher has been a site leader at the Hinsdale Clay Street location since 2009. He was also the department of medicine chairman from 2014 until 2017. He has served on numerous committees over the years, including the EMR and Charitable Fund committees. In 2017, Dr. Gallagher stepped away from leadership roles and pursued a master’s degree in clinical informatics at Northwestern. He completed the degree in 2020 and became board-certified in informatics in 2021.
Dr. Gallagher graduated from the University of Michigan and then attended the University of Chicago for medical school. After finishing a residency at Northwestern, he joined a small, four physician medical practice in Hinsdale. These physicians ultimately became founding members of DuPage Medical Group.

Jean Houlihan, MD
Dr. Jean Houlihan, board-certified in internal medicine, serves on the Clinical Board of the Duly Health and Care physician organization. She has been practicing in DuPage County since 1995 and has served on Duly’s leadership team since 2015. Dr. Houlihan also serves on the Advisory Board of the Duly Charitable Fund.
Dr. Houlihan received her degree from Rush Medical College in Chicago. At Rush Medical College, she was awarded the Ramsey/Ramsey Scholarship for Academic Excellence in Leadership Qualities. She also received a Janet M. Glasgow Memorial Award of the American Women’s Association for graduating first in her class as a female student and a Nathan M. Freer Prize for being voted by faculty as an outstanding senior medical student. While completing her internship and residency at Rush Presbyterian-St. Luke’s Medical Center in Chicago, she received a Robert E. Slayton Prize for Special Competence, Sensitivity and Compassion in Medical Oncology and a Department of Internal Medicine Award for Excellent Work as a Resident. Furthermore, Dr. Houlihan is a member of the Alpha Omega Alpha Medical Honor Society.

Abdul Sankari, MD, MBA, FACC, FCCP
Dr. Abdul Sankari, board certified in Interventional Cardiology, Nuclear Cardiology, Critical Care
Medicine, Cardiovascular Disease, and Internal Medicine, serves on the Clinical Board of the Duly Health and Care physician organization. He joined Duly Health and Care in 2016 after serving nearly 15 years as a practicing physician with Heartland Cardiovascular where he held numerous leadership roles, including group president.
He received his Medical Degree from the University of Aleppo, Syria, where he earned the First Rank in the Graduation Exam at the University of Aleppo. Dr. Sankari completed his internship and his residency at the University of Illinois, Michael Reese Hospital and Medical Center in Chicago, where he was the Chief Medical Resident. He also completed a fellowship in Cardiology at the University of Illinois at Chicago and the Michael Reese Hospital and Medical Center, where he was the Chief Cardiology Fellow. Dr. Sankari completed a Critical Care Fellowship at Emory University.
Dr. Sankari serves as the Director of the Cardiac Catheterization Lab at Silver Cross Hospital, New Lenox. He is the past President of the Heartland Education and Research Foundation. His research has been published in numerous peer-reviewed journals.

Mia A. Taormina, DO, FACOI
Dr. Mia Taormina, board-certified in Infectious Disease and Internal Medicine with Hospital Medicine focus, serves on the Clinical Board of the Duly Health and Care physician organization. Dr. Taormina has been a part of Duly Health and Care since 2012 and has served in various leadership roles including as Chair of the Department of Infectious Disease, and her leadership has been highlighted throughout the organization’s COVID response.
Detroit area born and raised, Dr. Taormina graduated from Michigan State University — College of Osteopathic Medicine with honors and served as President of the Student Government. She completed an Internal Medicine residency and Infectious Disease Fellowship at Beaumont Botsford Hospital in Farmington Hills, MI where her leadership skills were further utilized in her roles as Chief Intern and Chief Resident during her training. Dr. Taormina recently received the honor of giving the Keynote Address at her alma mater at the convocation of osteopathic medical school graduates at Michigan State University in 2022.
Senior Management Team

Dan Greenleaf, Chief Executive Officer
Dan Greenleaf serves as Chief Executive Officer at Duly Health and Care. He works in close partnership with leadership and clinicians on advancing Duly’s mission of delivering exceptional clinical excellence and patient care while driving sustainable growth for the independent physician group.
Dan brings nearly 30 years of experience leading healthcare services organizations. Most recently he served as President and CEO of Modivcare, which provides a platform of integrated supportive care solutions focused on improving health outcomes. Prior to that he served as President and CEO of BioScrip, Inc., the largest independent provider of infusion and home care management solutions, where he led the merger with Option Care Health. He also served as CEO of Home Solutions Infusion Services and Coram Specialty Services.
Dan graduated from Denison University with a Bachelor of Arts in Economics and holds a Master of Business Administration in Health Administration from the University of Miami. He spent six years in the United States Air Force where he served as an officer and navigator and did a tour in the first Gulf War.

Carol Brockmiller, CEO, Quincy Medical Group
Carol Brockmiller serves as the Chief Executive Officer of Quincy Medical Group, which has been part of the Duly Health and Care brand since fall 2021. Carol has been part of QMG for 25 years, serving as its CEO since November 2014. Carol is focused on transforming healthcare for residents of Central Illinois and the tri-states of Illinois, Iowa and Missouri and advancing the organization’s culture to provide an unrivaled environment for physicians to deliver healthcare, team members to build life-long careers and patients to experience unparalleled care.
Carol earned her Bachelor’s degree in Political Science from Quincy University.

Chris Dunleavy, Chief Financial Officer
Chris Dunleavy serves as Chief Financial Officer at Duly Health and Care. At Duly, Chris is responsible for strategic and financial planning, cash management, accounting, budgeting and financial reporting, business development, along with revenue cycle management and real estate operations. He is responsible for internal reporting, capital markets, treasury, procurement and tax in addition to leading Duly’s financial planning and analysis team. He is focused on supporting and identifying sustainable growth opportunities and partners with our leaders on finance initiatives, P&L workstreams, and revenue cycle management. He brings more than 30 years of financial and business development expertise across health systems. Most recently he served as System Chief Financial Officer of Dallas-based Steward Health Care. He also served in CFO roles for organizations including Boston-based Brigham Health, Baylor Heart and Vascular Hospital, USMD Holdings, Inc., which includes the USMD Health System, and Vizient, Inc. Chris is especially versed in working directly with physicians and physician leaders on business models and performance.
Chris received a bachelor’s degree in finance from The University of Texas at Arlington before earning his Executive MBA from Baylor University’s Hankamer School of Business.

Donald Hoscheit, MD, Chief Medical Officer
Dr. Donald Hoscheit, a practicing board-certified gastroenterologist, serves as the Chief Medical Officer of Duly Health and Care. He has been in practice at Duly for more than 35 years and has held many leadership roles within and outside the organization. In addition to serving as Chief Medical Officer, he leads many of Duly’s internal committees and shares responsibility for upholding the integrity and accountability of the staff while empowering them to best serve the members of our community who come to us for care.
He earned his medical degree from the Loyola University Stritch School of Medicine and completed his internship, residency in internal medicine and fellowship training in clinical gastroenterology at the Loyola University Medical Center. He is a fellow of both the American College of Gastroenterology (ACG) and the American Gastroenterological Association (AGA).

Andrea Hurteau, Chief Value Services Officer
Andrea Hurteau serves as Chief Value Services Officer for Duly Health and Care. In her leadership role, she upholds a purpose-driven and results-focused mindset while collaborating with physicians, leaders and payor partners. In addition to building and managing payor partnerships, Andrea leads Duly Health and Care’s value-based care strategy and program management which includes value-based analytics, care management and population health management. Andrea also oversees several functions within Duly that support clinical operations, including payor contracting and revenue cycle management. In addition, Andrea directs operations for the organization’s payor-delegated functions, including credentialing, utilization management and claims payment. Andrea joined Duly in 2017 and has nearly 25 years of specialized healthcare experience focused on the strategic management of risk-based contracts and population health operations for health plans and provider groups. Throughout her career, Andrea has held multiple executive management and business development leadership positions at various health plans, health systems and medical groups.
She holds a bachelor’s degree in nursing science from Queen’s University in Canada and a master’s degree in business administration from Duke University’s Fuqua School of Business.

Chris Nash, Chief Technology Officer
Chris Nash serves as the Chief Technology Officer of Duly Health and Care, where he leads a team of nearly 200 technologists and engineers. Prior to joining Duly Health and Care in 2022, Chris served as CIO of Adtalem Global Education where he helped transform Adtalem into a leading educator of doctors, nurses, and veterinarians. In 2019, Nash was awarded Chicago CIO of the Year for Large Enterprises. Chris has held numerous management and executive positions with a variety of technology organizations from Kraft Foods and Millward Brown to Shorr Packaging. His technology experience spans across digital transformation, eCommerce, data analytics, AI, cloud migration, and more.
Chris earned his MBA from Northwestern University and his Bachelor’s degree from Beloit College.

John Porcelli, MD, President, Physician Group Operations
Dr. John Porcelli, board-certified in critical care, pulmonary medicine and sleep medicine, serves as
President of Physician Group Operations at Duly Health and Care. Dr. Porcelli works closely with the Duly leadership team to optimize patient care, promote physician engagement, drive strategic growth initiatives, and create operational efficiencies.
In practice at Duly Health and Care since 2004 as doctor #156, he previously served as President and Treasurer of the Clinical Board of Directors, Chairman of Duly’s pulmonary/critical care/sleep medicine department, Medical Director of the intensive care unit at a local hospital, Chief Medical Officer of McCormick Place Alternate Care Facility, Medical Director of Premier Medical Equipment, Chairperson of Duly’s Compensation Committee, Member of Duly’s Executive Committee, and leader of several other internal and external committees. As a practicing physician, he brings extensive experience in treating lung cancer, COPD, acute lung injury, asthma, sleep disorders and sepsis. His favorite part of his job is seeing patients, recruiting talented, passionate physicians to this unique model, and supporting the Duly Health and Care Charitable Fund in an effort to give back to the community.
Dr. Porcelli earned his undergraduate degree from the University of Notre Dame and his medical degree from Rush Medical College. He completed his residency in internal medicine at Rush University Medical Center and later completed fellowship training in pulmonary, critical care and sleep medicine at Loyola University Medical Center, where he also served as chief fellow.

Sarah K. Wilson, Chief Legal Officer
Sarah Wilson serves as Chief Legal Officer of Duly Health and Care. In her leadership role, she brings a business-oriented, collaborative mindset to advising Duly on legal, regulatory and compliance issues. Sarah joined Duly in 2021 following prior roles advising publicly traded and privately held domestic and multinational growth companies and financial institutions on a range of corporate governance, disclosure matters and strategic transactions. Sarah most recently served as Assistant General Counsel, Corporate and Securities at Ventas, Inc., a healthcare real estate investment trust. Prior to joining Ventas, Sarah practiced with Sullivan & Cromwell LLP in New York. Sarah began her career in consulting with Mercer Human Resource Consulting in Los Angeles, California, and also worked at Deloitte Consulting prior to attending law school.
Sarah holds a bachelor’s degree in International Relations, Global Business, from the University of Southern California, and a juris doctorate from Northwestern University Pritzker School of Law.

Ryan West, Interim Operations Leader, Chicagoland
Ryan West serves as the Interim Operations Leader for Duly Health and Care in the Chicago suburbs and is the Chief Executive Officer of The South Bend Clinic, a medical group that has been part of the Duly Health and Care brand since fall 2021. In this role he partners with the physicians and leaders throughout the organization to ensure delivery of an exceptional patient experience. Ryan joined Duly in 2021 with more than 15 years of healthcare experience, serving in roles across consulting, strategic planning, population health and operations. Prior to joining Duly, Ryan served in several progressive leadership roles at VillageMD, Ascension Health, and SSM Health Care in St. Louis, MO. Most recently, Ryan served as CEO of Duly’s operation in Indiana under The South Bend Clinic brand.
Ryan is a graduate of Elon University in North Carolina and earned his Master of Health Services Administration from Xavier University.