About Us

Ronan W. Gannon

Chief Executive Officer

Ronan W. Gannon is LCH’s Chief Executive Officer.  His role as CEO began at the beginning of May, 2021.  Ronan’s career has included both strategic and operational roles in primary care, pediatrics, public health, and vaccine development in both large and small organizations.  Most recently he served as Chief Commercial Officer at EryDel Biotech. Ronan holds a B.A. from the University of Richmond, an MBA from Northeastern University, and is an alumnus of Harvard Business School’s General Management Program. He was a member of LCH’s Board of Directors from 2015-2020. Ronan currently serves on the following committees: National Association of Community Health Centers (NACHC) Committee on Agricultural Worker Health, NACHC Committee on Health Center Excellence/Training, NACHC Rural Health Committee, and the Pennsylvania Association of Community Health Centers (PACHC) Legislative Regulatory and Policy Committee.

Margarita Garay-Zarco

Director of Human Resources

Margarita Garay Zarco is LCH’s Director of Human Resources. She joined the LCH team in 2010 and previously held the positions of GED instructor, Client Services Manager, and Education and Workforce Development Coordinator. She oversaw the management of adult education programs, including English as a Second Language, GED, and citizenship preparation for LCH clients. In addition, she implemented LCH’s workforce development program in 2014, and provided help to members seeking jobs and connections with companies in the area. Most recently, she has taken the role of Director of Human Resources as well. Margarita holds a bachelor’s degree in secondary education from Escuela Normal Superior del Estado de Queretaro in Mexico. She has over 15 years of experience in both public and private schools, including 10 years in administration and managerial positions. She has been a teacher, counselor, tutor, program coordinator and spent five years as the principal of a high school in Mexico.

Barbara Mancill

Director of Quality Care and Population Health

Barbara joined LCH in January 2019 and is the Director of Quality Care and Population Health. Barbara brings to LCH 20 years of public health and non-profit management experience. She is responsible for ensuring the quality and cost effectiveness of all LCH’s services and programs, and drives operational decision-making using data. Barbara has a bachelor’s degree in Psychology and a master’s degree in Industrial/Organizational Psychology, both from West Chester University.

Joseph A. Greco, MD

Chief Medical Officer

Joseph A. Greco, MD, recently joined LCH Health and Community Services as the Chief Medical Officer of its three locations in southern Chester County.  Dr. Greco, who is Board Certified in Family Practice, holds a Certificate of Added Qualifications (CAQ) in Hospice and Palliative Care Medicine, is a Fellow at the American Academy of Family Physicians, and a Diplomat of the National Board of Medical Examiners. Dr. Greco received his bachelor’s degree from the University of Notre Dame and his Doctor of Medicine from the Jefferson Medical College in Philadelphia.

Kate Wickersham, CFRE

Director of Development

Kate Wickersham joined LCH Health and Community Services in November 2021 as the Director of Development.  With a career spanning both for-profit and nonprofit organizations, Kate has focused on strategic development, marketing and communication, education, outreach, community partnerships, and philanthropy. Her team is dedicated to telling the story of LCH, the patients they serve, and the community and partners they collaborate with to bring health and happiness to Chester County, PA.  Kate’s passion for healthcare access began with her quest for care for her sons, who have Type 1 diabetes, and advocating for those who need resources to achieve optimal health.

She holds a B.A. from Widener University, is a Certified Fund Raising Executive, and is a member of the Society for Health Care Strategy & Market Development.  Additionally, serves on the Oxford Mainstreet, Inc. Board of Directors.  Kate facilitates Bridging the Community, a grassroots community conversation to build organic connections to discover, form, and cement the connection between organizations and individuals.  Kate loves to laugh and believes that finding joy in everyday moments is essential.  She hopes that everyone has the opportunity to experience happiness in their daily lives.

Philip M. DeColli

Chief Financial Officer

Philip De Colli joined LCH in August 2016 as Chief Financial Officer. In this position, he is responsible for LCH’s accounts receivable, accounts payable, payroll, financial reporting and analysis, and oversight of our billing arrangements with health insurance providers and lab testing partners. He will produce monthly, quarterly, and annual financial statements for the review of LCH’s President and for the Finance Committee. Philip has worked in accounting for the past 40 years, in higher education, manufacturing, media, and health care. His most recent position was at Chester County Hospital. He holds a B.S. in Accounting from Drexel University.