Meet Our Team
Beth has recently served as Chief Executive Officer for Friends Hospital. Beth worked for KeyStone Center as Director of Risk Management for 7 years, until she moved to the UHS COO training program. She served as Interim CEO at KeyStone Center, Horsham Clinic and was then promoted to CEO at Friends Hospital. During the last year at Friends Hospital, at Beth’s direction, Friends Hospital stayed ahead of the curve with regards to the COVID-19 pandemic. She helped the facility meet and exceed their business goals and worked to continuously strive to improve the patient experience and clinical programming. She started in healthcare in 1994 and has experience running the performance improvement, risk management, and compliance departments in behavioral health treatment facilities.
Beth earned her Doctorate in Clinical Psychology degree from Philadelphia College of Osteopathic Medicine (PCOM), in Philadelphia, Pennsylvania, as well as a Master’s degree in Clinical Psychology from PCOM. She received her Bachelor’s degree in Communication from The University of Rhode Island, where she attended college on a full athletic scholarship.
Throughout her longstanding career in healthcare, Beth has a proven record of expanding clinical programming, enhancing patient safety and mitigating risk as well as working alongside other leadership to improve patient satisfaction.
Dr. Lesley Lee
MD, Medical Director
Dr. Lesley Lee, M.D. has been appointed to Medical Director at KeyStone Center. Dr. Lee’s desire is to apply her skills and expertise in diagnosing, counseling, and providing support to patients who are going through emotional, intra- and interpersonal, and psychological struggles. She has received her M.D from Korea University Medical School and is Board Certified for Adults – Board Eligible in Children and Adolescent. Dr. Lee has been working in the behavioral health field for over 25 years, so she will be bringing with her substantial insight and knowledge to our facility. Prior to joining The Keystone Center, Dr. Lee has worked at several other UHS facilities.
Psy.D, Director of Psychology Services
Dr. Robyn Liebman is a licensed psychologist in the states of Pennsylvania and New Jersey. She graduated in 2017 from Widener University’s PsyD program, with a focus on Forensic Psychology. Dr. Liebman completed her pre-doctoral internships at Clinical Neuropsychological Associates and Community Treatment Teams. Her focus throughout graduate school was on forensically involved populations with co-occurring diagnoses, such as substance use disorder, schizophrenia, depression and bipolar disorder. Her interests include cognitive and behavioral therapies for the treatment of substance abuse disorder, severe mental illness, personality disorders and forensic populations.
Dr. Liebman joined the Keystone Team in February 2020. Prior to working at Keystone, she worked in pharmaceutical research where she assisted in the completion of drug trials, assessing the effectiveness of medications to treat Schizophrenia, Depression, PTSD, Bipolar Disorder and Borderline Personality Disorder. Dr. Liebman completed her post-doctoral hours at Ancora Psychiatric Hospital in New Jersey. While working in the New Jersey state psychiatric system, Dr. Liebman was trained in Dialectical Behavioral Therapy (DBT) and was the lead psychologist in the women’s DBT program.
Dr. David Pellack
PhD, LPC, CSAT, Clinical Director
Dr. Pellack earned his doctorate from Indiana University, Bloomington. David’s dissertation focused on characteristics that predict patient program compliance for chronically homeless mentally ill individuals, many of whom had issues with drug and / or alcohol abuse. While at IU, David did an extended practicum at the Kinsey Institute where he worked with clients with a variety of sexual issues and received training on numerous treatment modalities. As a Kinsey intern, David also co-facilitated a weekly group for transgendered individuals. David completed his internship at the Syracuse Veterans Administration hospital where he focused his training on traumatized veterans in hospice. David has over 15 years of experience working with traumatized children and their families in foster care and psychiatric community residences. He has been with the ECU since 2016, and was the assistant director for 5 years before becoming the director last year.
David recently became EMDR certified and incorporates this into the intense trauma work we do at KeyStone.
As director, David enjoys educating the public and professionals by providing trainings on addiction, trauma and sexual compulsivity. David continues to utilize his skills (maintains contact with the clients) by having an “open door” policy with all the clients, facilitating a variety of groups and assisting clients with trauma through EMDR therapy.
Chief Financial Officer
Director of Business Development
Jennifer has been with the KeyStone Center since 2001. She is responsible for all marketing efforts, including advertising and website management, as well as contracting and credentialing initiatives for KeyStone Center. Jennifer cultivates relationships with referring clinicians and oversees a team of outreach professionals who provide information about KeyStone Center’s programs and services to the addiction treatment community. Prior to arriving at KeyStone, Jennifer worked in the Managed Care industry in the Provider Relations and Contracting Department.
Director of Human Resources
Michelle earned her bachelor’s degree in Human Resource Management at Philadelphia University. She has worked in the Behavioral Health field for more than 25 years, most recently focusing on Human Resource Management. Prior to joining KeyStone Center, Michelle served as Director of Human Resources for Pennsylvania Clinical Schools.
J.D., Director of Admissions
Diane earned her degree at Villanova Law School, and has a certification for providing MH/MR services through Temple University. She has worked at the KeyStone Center for more than 15 years starting in the Psychiatric Unit before moving into the Intake Department. Prior to arriving at KeyStone, Diane had extensive experience working with the MH/MR population through Northwestern Human Services. She is responsible for managing our transportation department as well.
Director of Risk Management and Performance Improvement
Candis joined the staff at The KeyStone Center in 2015 and it became apparent that she found her niche in the treatment field. Since joining the team as a primary therapist, Candis has been instrumental in implementing and maintaining the Dialectical Behavioral Treatment (DBT) track. Prior to joining KSC, Candis worked at another UHS facility, Rockford Center in their Creative Arts Department.
She received her Master’s degree in Art Therapy from New York University In New York City, NY and her Bachelor’s degrees in both Art Therapy and Art Education from Marywood University in Scranton, PA. Since receiving her Master’s degree, Candis has worked diligently to become licensed clinician. She is Nationally Board Certified in Art Therapy and a Licensed Professional Counselor in Pennsylvania.
An Environment of Compassion
KeyStone Center provides treatment for addiction and co-occurring issues at our facility five miles south of Philadelphia International Airport in Delaware County, Pennsylvania. We provide addiction services to patients from all over the country.
We offer no-cost, confidential assessments 24 hours a day, 7 days a week. If you or a loved one are struggling with addiction, call us today at 610-876-9000.