Executive Leadership
Board of Directors
Ashley’s Board of Directors is a passionate and energetic group of individuals committed to sustaining our co-founders’ legacy of healing with dignity. Our Board is led by Chairman Jim Denvir. Jim is an experienced business person, a passionate Ashley advocate and a skilled leader. Ashley’s Board is comprised of individuals with diverse professional backgrounds. Our Board is a working Board that focuses on governance and management issues while providing guidance and strategic oversight.
Executive Leadership Team
David T. Nassef, President & CEO
David T. Nassef joins Ashley as the President and CEO after serving over 15 years as the Chairman of the Board for Ashley Addiction Treatment. He served as Chairman of the Board at High Watch Recovery Center for 5 years and Gunster House for one year. He previously was Vice President, Global Government and Regulatory Affairs for Pitney Bowes Inc., where he was responsible for oversight and management of U.S. and International government and regulatory influencing activities within the company. Dave has served as the Chairman of the Connecticut State Ethics Commission, Vice Chairman of the Connecticut Alcohol and Drug Commission and was a Captain in the United States Marine Corps prior to joining Pitney Bowes. Dave is a graduate of Fairfield University and holds Advanced Certificates in Medical Ethics from the Albert Einstein and Columbia Schools of Medicine, and Language Expertise from the Defense Language Institute.
Alex Denstman, Senior Vice President, Chief Growth Officer
Alex started working at Ashley in 2009 as a Patient Care Coordinator and has since held several roles including Director of Alumni Services, Director of Clinical Outreach, and Vice President of Business Development. In his current role as Senior Vice President, Chief Growth Officer, he now oversees Intake, Clinical Outreach, Utilization Review, Patient Care Coordination, Communications, Alumni, and Development. Alex received his undergraduate degree from University of Baltimore in Health Systems Management with honors and is now pursuing his Master in Business Administration from University of Maryland Global College. His association with Ashley started in 2003 when, at age 20, he was a patient in our program. Alex has remained in recovery and is an active member of the local recovery community. He is passionate about using his personal experiences and 15+ year’s background in the industry to help ensure that patients, families, and referring professionals feel cared for and appropriately served at the intake and discharge stages of treatment and beyond.
J. Gregory Hobelmann, M.D., Senior Vice President, Chief Clinical and Medical Officer
Dr. Greg Hobelmann currently serves as the Senior Vice President, Chief Clinical and Medical Officer of Ashley Addiction Treatment. In this role, he oversees the clinical, medical and nursing staff for both the inpatient and outpatient clinics. He previously served as a staff psychiatrist after completing his psychiatry residency at Johns Hopkins. He has also completed an anesthesiology residency and pain medicine fellowship at Johns Hopkins in 2006 and has a Master of Public Health from the Johns Hopkins Bloomberg School of Public Health. His treatment interests include addiction and chronic pain. Prior to arrival at Ashley, he worked as an interventional pain specialist.
Mark Hushen, M.Div., MA, Chief Mission and Legacy Officer
Mark Hushen has been with Ashley since 2007 and brings a wealth of knowledge and experience in spirituality, recovery and wellness to the care of Ashley’s patients and families. In his role, he oversees all Spiritual Wellness Services including prayer, meditation, worship, retreat work, yoga, spiritual counseling, grief counseling, art therapy, massage, acupuncture and recreational activities. Prior to joining Ashley, he was an educator, faith leader and served as the Director of Clinical Pastoral Care at Caron Treatment Centers in Pennsylvania. He received his B.S. from Penn State University, State College, his Master of Divinity from De Sales School of Theology, and his M.A. in counseling from The Catholic University of America.
Jennifer Aguglia, LCSW-C, Vice President of Outpatient Services
Jennifer Aguglia, LCSW-C started working at Ashley in 2015 as a Clinical Supervisor and has since held several roles including Clinical Manager and Clinical Director. In her current role as the Vice President of Outpatient Services, she oversees the daily operations of both outpatient locations and the development of new outpatient services. Prior to taking on her role at Ashley, she was the Director of the Women and Children’s Program at Recovery Network, University Psychological Center in Baltimore, Maryland. She earned her Masters of Social Work from University of Maryland, Baltimore with a specialization in Mental Health. She is a licensed Clinical Social Worker in Maryland and Virginia. She is an approved Social Work supervisor for the Maryland Board of Social Work Examiners as well as a Professional Counselor supervisor and Licensed Clinical Alcohol and Drug Approved Supervisor with the Maryland Board of Professional Counselors. Jennifer is passionate about working in the field of addiction, especially with the population of pregnant women and women with children.
Donna Bogari, MHA, CRA, CCM, CPHQ, Director of Corporate Compliance, Quality and Risk Management
Donna Bogari, MHA, CRA, CCM, CPHQ, joins Ashley as the new Director of Corporate Compliance, Quality, and Risk Management. Donna has been working in healthcare since 1990 and has extensive experience in Regulatory Compliance including Behavioral Health, Patient Safety and Quality Care, Project Management, Operations Management, Customer Service and Case Review. She is joining us from Christiana Care Health Services where she is the Corporate Director of Patient Safety and Accreditation. Donna has a BS in Radiologic Technology from Bloomsburg University and a Master of Health Services Administration from the University of St. Francis.
James Burgess, CPA, Corporate Controller
James Burgess joined Ashley Addiction Treatment in November of 2019 and currently serves as the Corporate Controller. In this role, he oversees the Finance Department which includes Patient Accounts, Patient Financial Services, Accounting and Financial Reporting. Prior to joining Ashley, James spent eight years in the Assurance practice of the Baltimore, MD office for PricewaterhouseCoopers focusing on Healthcare and Not-for-Profit clients. James received his Bachelors of Science degree in Accounting and his Masters of Accounting Degree from the Smeal College of Business at Pennsylvania State University. James is an active licensed Certified Public Accountant and is a member of the American Institute of Certified Public Accountants and the Maryland Association of Certified Public Accountants.
Tosha Hershey, Vice President of Talent Management
Tosha Hershey joins Ashley as the Vice President of Human Resources with over 16 years of HR experience, more than half of which have been in the non-profit, social services and healthcare industries. In her role, she will oversee the entire HR function. Prior to Ashley, Tosha was the Director of Human Resources for Health Care for the Homeless. While at Health Care for the Homeless, she was a part of the National Council for Health Care for the Homeless’ first national collaborative on diversity, equity, and inclusion. She has a Bachelor’s degree in Business Administration from Morgan State University and is currently attending Towson University for a master’s in Human Resources Development. Tosha’s passion for healthcare and social justice issues has been passed down to her by her mother, a retired nurse, and father, who was an active member in Baltimore social justice issues. It is because of this, that she find’s herself drawn to non-profits with strong missions and a history of helping others in the community.
Jeff Van Slyke, Vice President of Support Services
Jeffrey Van Slyke joins Ashley as the Vice President of Support Services. Jeff retired from the United States Air Force in 2014. Since then he has held the Director of Facilities position at Our Lady of Lourdes in Binghamton, New York, and the Corporate Director of Facilities position at Mountain States Health Alliance (MSHA) in Johnson City, Tennessee. Jeff has been in healthcare since 1993 and has extensive healthcare facilities and construction experience from both his military and private sector positions. He holds a BS in Kinesiology from Indiana University and a Master of Healthcare Administration from Chapman University.