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Devereux's Senior Leadership Team

Devereux Advanced Behavioral Health Office of the President

Carl E. Clark II
President and Chief Executive Officer

Carl E. Clark II is the President and CEO of Devereux Advanced Behavioral Health, and only the seventh president in the organization’s history, since our founder Helena T. Devereux resigned from the position in 1957. Prior to joining Devereux as senior vice president and chief operating officer in 2015, Clark developed a national reputation as one of the top operational and leadership experts in the nonprofit arena. For more than 20 years, he served in a variety of leadership roles at NHS Human Services, including regional executive director, senior vice president of program operations and, ultimately, executive vice president.

Click here to read the full biography of Carl E. Clark II.


Marilyn B. Benoit, M.D., SHSA
Senior Vice President and Chief Clinical Officer, Chief Medical Officer
Past President, American Academy of Child and Adolescent Psychiatry, 2001-2003

As Senior Vice President and Chief Clinical Officer, Chief Medical Officer, Dr. Marilyn Benoit is responsible for overseeing our organization’s clinical strategies, treatment and outcomes. Specifically, she works to integrate the latest scientific and medical advancements with time-tested philosophies and compassionate family engagement to provide practical, effective and efficient care for the individuals we serve.

Dr. Benoit has been part of the Devereux family for nearly 25 years. From 1993-1998, she was the medical and executive director of Devereux’s former Washington, D.C.-based children’s behavioral healthcare program. From 2003 through 2011, she served as a member of the Devereux Board of Trustees, where she became the chair of the Clinical and Professional Committee of the Board. In January 2011, Dr. Benoit assumed her current position.

Dr. Benoit has lectured internationally and has published widely on several issues related to children’s behavioral health. In addition, she has served on numerous national task forces and councils, and has provided Congressional testimony on a range of issues including: child abuse, television and media violence, community violence, suicide in youth, and teen pregnancy.

Dr. Benoit is a clinical associate professor of psychiatry at Georgetown University Medical Center and an adjunct clinical professor of psychiatry at Drexel University School of Medicine, and was a psychiatry professor at Howard University Hospital and the Children's National Medical Center in Washington, D.C. Her focus at these educational institutions was the preparation of medical students and physicians to become psychiatrists. She also held previous academic positions at Howard University School of Medicine and the George Washington School of Medicine.

Dr. Benoit completed her medical degree and residency at Georgetown University Medical School, and is board certified in Adult and Child and Adolescent Psychiatry. She holds an advanced business degree as a Specialist in Health Services Administration from the School of Public Health at the George Washington University. She currently sits on the board of the Alliance for Childhood. Dr. Benoit is a past president of the American Academy of Child and Adolescent Psychiatry (2001-2003); a past trustee of the Child Welfare League of America and BestKids Mentoring; and was named among the “Top Doctors in the Washington, D.C. area” from 2007-2009 and 2016, and “Best Doctors of America” from 2005-2010 and 2016.


Robert C. Dunne
Senior Vice President and Chief Financial Officer / Operating Vice President
Chief Executive Officer - QualityHealth Staffing, LLC

Robert C. Dunne has held the role of Devereux’s senior vice president and chief financial officer, treasurer since 2008. Along with his dual role as operating vice president, Dunne is responsible for the organization’s financial performance, as well as setting and implementing financial strategy and procedures across all centers. He also oversees Devereux’s information technology efforts and all facility-related matters. In addition, Dunne serves as chief executive officer of Devereux’s new staffing company - QualityHealth Staffing, LLC.

Dunne joined Devereux in 1992 and, since that time, he has served in roles of increasing responsibility, including controller, senior director of finance and vice president of finance. Before joining our organization, he spent nine years at international accounting firm Ernst & Young, most recently in the role of senior manager.

Dunne holds a Bachelor of Science in Accounting from La Salle University; in 1985, he became a Certified Public Accountant. In addition, he serves on the boards of Devereux Cleo Wallace and the Devereux Cleo Wallace Foundation. Dunne is also a board member of the Devereux Community-Based Care (a Florida affiliate of Devereux) and chairs its Finance Committee.


Mike Ernst
Senior Vice President of People Operations

Mike Ernst, SPHR, SCP, is Devereux’s senior vice president of people operations. In this role, Ernst develops roadmaps for, and executes, all employee-related initiatives. Specifically, he is responsible for innovation in the following areas: talent acquisition, engagement and retention, employee development, and total rewards, along with further strengthening Devereux’s culture and employment environment.

Prior to joining Devereux, Ernst was the vice president of human resources at NHS Human Services Inc., a national behavioral healthcare provider in Lafayette Hill, Pa. While at NHS, Ernst managed the company’s people strategies and human resources activities, including: professional development and education, human resources business management and services, and talent acquisition and labor relations activities for more than 10,000 employees. Before that, he served in the following roles: worldwide director of human resources at Drug Information Association in Horsham, Pa.; senior consultant/strategist at The CBI Group, Inc., in Newark, Del.; director of human resources at the Office of the Governor Mitt Romney in Boston, and vice president of human resources/operations for CGN Marketing & Creative Services in Boston. Ernst started his career as a residential counselor and acting program manager with Devereux Pennsylvania.

Ernst holds a bachelor’s degree in Psychology from Mount Saint Mary’s University and a master’s degree in Clinical Psychology from West Chester University. He earned a Senior Human Resources Certificate from Villanova University.


Renee Martin
Senior Vice President and General Counsel

As Senior Vice President and General Counsel, Renee Martin, J.D., R.N., M.S.N., is responsible for Devereux’s corporate legal function, including overseeing corporate transactions, contract negotiations, real estate and litigation matters. She also oversees the organization’s adherence to healthcare regulatory compliance issues, as well as governance, labor and employment matters.

Martin brings more than 20 years of legal and healthcare expertise to her position. Before joining Devereux, she served as a partner with Philadelphia-based law firm Dilworth Paxson, LLP. During her time with Dilworth Paxson, she represented and advised healthcare providers - with an emphasis on behavioral healthcare and other areas - on issues related to: quality of care and patient safety, risk management, fraud and abuse, healthcare billing and audit compliance, provider and facility licensure, and client informational privacy and confidentiality. Prior to this role, Martin was a partner with the law firm of Rhoads & Sinon in Exton, Pa., and also spent 10 years at the law firm of Tsoules, Sweeney, Martin & Orr, LLC in Exton, Pa. In addition, she served as an associate at the following firms: Wolf Block, LLP; Reed Smith LLP; Kalogredis, Tsoules and Sweeney, Ltd.; Allegheny Health Education and Research Foundation; and Rawle & Henderson. She has lectured nationally and has been published widely on a variety of issues related to healthcare/HIPAA and legal matters.

Martin earned a diploma in Nursing, with honors, from the Bryn Mawr Hospital School of Nursing; a Bachelor of Science in Nursing, Magna Cum Laude, from Neumann College; a Master of Science in Nursing, Magna Cum Laude, from Villanova University; and a Juris Doctor, with honors, from the Villanova University School of Law. She is a member of the American Bar Association and is a registered nurse in the Commonwealth of Pennsylvania. Martin is a board member of Community Volunteers in Medicine and serves on the Patient Safety and Quality Healthcare Journal’s editorial advisory board.


Renee Martin

Leah S. Yaw
Senior Vice President of External Affairs

Leah Yaw has served as Devereux’s senior vice president of external affairs since 2012. She joined Devereux in 2009 in the role of vice president of development and communications.

Prior to joining Devereux, Yaw was the vice president of strategic advancement for KidsPeace, a national nonprofit organization serving children with behavioral health needs. She began her career serving the public relations and crisis communications needs of both for- and nonprofit corporations in an agency setting in New York City and the Lehigh Valley of Pennsylvania.

Yaw holds a Bachelor of Arts in English Writing and Public Policy, Summa Cum Laude, from the Honors College of the University of Pittsburgh and a Master of Science in Communication Theory, Summa Cum Laude, from the Shippensburg University of Pennsylvania.

She serves on the board of trustees for the following organizations: Devereux Community Behavioral Health of Okeechobee and the Treasure Coast; the Public Policy Advisory Committee for the Alliance for Strong Families and Communities; the Advancement Committee for The Swain School; and the Centennial Planning Committee for Vision 2020.


Leah Yaw

Lorraine Barrett
Assistant Secretary

Lorraine Barrett serves as executive assistant to Devereux’s President and Chief Executive Officer Carl E. Clark II. In addition to providing administrative support to the CEO, she serves as recording secretary for all Devereux Board meetings, is responsible for disseminating Board meeting materials and maintains Board- and governance-related documents for the organization.

Barrett joined Devereux in 2001 as a part-time receptionist and, in 2003, became executive assistant to the chief operating officer. She then went on to assist Devereux’s vice president of operations and organizational development and the vice president of product development.

Prior to Devereux, Barrett was the public relations director for Richard Stockton University and marketing director for Northern Illinois University’s School of Theatre and Dance. She was also an adjunct theatre arts professor for both schools, teaching graduate and undergraduate courses in acting, speech, dialects and theatre history. A professional actress for more than 20 years, Barrett has performed in theatrical productions in regional theatres across the country, as well as in New York, where she appeared in the original Broadway production of “Joseph and the Amazing Technicolor Dreamcoat.”

A native New Yorker, Barrett holds a Bachelor of Fine Arts and a Master in Fine Arts from Ohio University.


Devereux Advanced Behavioral Health Vice Presidents

L. Gail Atkinson
Vice President of Operations

L. Gail Atkinson has served as Devereux’s vice president of operations since 2006. In this role, she is responsible for all programs and services - for children and adults - at our facilities in California, Colorado and Texas. She also oversees our organization’s national marketing efforts.

Atkinson, whose behavioral health career spans more than 40 years, joined Devereux in 1971 as an activity instructor and counselor for our former summer camp in Mount Ida, Ark. Following her graduation from college in 1973, she was hired as a recreation counselor for the Devereux Texas - Victoria center. During her time in Victoria, Atkinson was promoted through several supervisory positions, eventually being named executive director of the center in 1989. In 1993, Atkinson was transferred to Devereux Florida’s Melbourne Center in the role of executive director. She then moved to League City, Texas, in 1994, to become executive director of the Devereux Texas Treatment Network. In 2006, Atkinson was promoted to her current position of vice president of operations, where she managed our Arizona, California, Colorado, Georgia and Texas centers. During her tenure as vice president of operations, she also held a dual role of Devereux Colorado executive director, from 2013-2014.

Atkinson is a licensed Master Social Worker (Texas) and a licensed Child Care Administrator (Texas). She holds a Bachelor of Arts in Social Science from Hendrix College and a master’s degree in General Administration from the University of Houston. She serves as a board member of the following organizations: the National Association for Children’s Behavior Health and the Texas Alliance of Child and Family Services.


Rayni Anderson Brindley, M.Ed., BCBA
Vice President of Operations and Organizational Development

As Vice President of Operations and Organizational Development, Rayni Brindley is responsible for developing and implementing operations-related strategies and initiatives across the Devereux organization. As part of her role, she oversees our operations support, human resources and learning business functions, and is focused on business process improvement. She has been in this role since 2016.

Brindley, whose behavioral health career spans nearly 20 years, has worked in various positions from direct care and clinical to management. Before joining Devereux, she spent more than 12 years at NHS Human Services, most recently as vice president of behavioral health, where she managed nearly half of the organization’s adult behavioral health and children’s service continuum. During her time with NHS, she also held the following earlier positions: executive director of operations and corporate clinical director for autism services. Prior to that, she served in roles of increasing responsibility including director of autism services at Paula Teacher and Associates.

Brindley is a Board Certified Behavior Analyst and holds the following academic degrees: Bachelor of Science in Elementary Education from Pennsylvania State University and a Master of Education in Special Education from the California University of Pennsylvania. In addition, she earned a certificate in Applied Behavior Analysis from Pennsylvania State University. She has been published in the areas of clinical issues and best practices, and has presented on a variety of topics related to autism spectrum disorders at national and international conferences.


Timothy Dillon
Vice President of Human Resources

Tim Dillon has served as Devereux’s vice president of human resources (HR) since 2007. In this role, he is responsible for the development and implementation of human resources strategies and policies across the organization - with a goal of becoming an employer of choice in the field of behavioral healthcare and beyond. Specifically, he manages all activities related to benefits, compensation, recruitment and retention, and employee/labor relations.

Dillon joined Devereux in 1986 as national director of compensation and benefits, where he oversaw the modernization of the organization’s compensation system and launched the HR function in our New York center. From 1992-2006, he served as national human resources director and was successful in implementing Devereux’s recruitment strategy and retention plan, and many policies and best practices related to employee safety, workers compensation and human resources.

Before joining our organization, Dillon spent 10 years as the director of personnel services at La Salle University, where he was responsible for launching the university’s personnel department.

Dillon holds a Bachelor of Science in Industrial Relations and a Master of Business Administration from La Salle University. He also earned the Diversity Certification from the Society for Human Resources Management.


David A. Griffith, C.P.A.

David Griffith serves as Devereux’s controller. In this role, he is responsible for overseeing the organization’s accounting, payroll, accounts payable and budgeting functions. Griffith has held this position since he joined the organization in 2012.

Prior to joining Devereux, Griffith was the controller for Crozer-Keystone Health System, a regional health system located outside of Philadelphia. He launched his career with the international accounting firm Ernst & Young, specializing in the healthcare industry. During his 11-year tenure with Ernst & Young, he held positions of increasing responsibility, most recently as senior manager.

Griffith holds a Bachelor of Science in Accounting from King’s College, and earned the Certified Public Accountant designation in 2001. He is a member of the American Institute of Certified Public Accountants, the Pennsylvania Institute of Certified Public Accountants, and the Healthcare Financial Management Association, where he serves as a director of the Metro Philadelphia Chapter.


Kathy-Ann Lewis, MBA, CTP

Kathy-Ann Lewis, MBA, CTP, has served as Devereux’s treasurer since 2017. In this position, she oversees our organization’s treasury and risk financing functions, counseling leadership team members and business units on various lines of insurance coverage. Among her other duties, she serves as a liaison for all risk engineering services and oversees all insurance programs, including: performing gap analysis on coverages, gathering exposure data for annual insurance renewals and negotiating insurance agreements. In addition, she is responsible for the following functions: cash management, debt administration and investment reporting.

Lewis joined Devereux in 2004 as a treasury analyst, and has held positions of increasing responsibility since that time. Specifically, she has been promoted into the positions of senior treasury analyst, treasury manager and assistant treasurer.

Lewis holds a Bachelor of Science in Computer Science and Mathematics from Drexel University and a Master of Business Administration with a concentration in Finance from Villanova University. She also is a Certified Treasury Professional and is a member of the Association for Finance Professionals.


Tom Shurer
Vice President of Information Resources

As Devereux’s Vice President of Information Resources, Tom Shurer is responsible for our information technology (IT) function, including maintaining our IT infrastructure and applications, and implementing future strategies to enable innovation across the organization.

Shurer joined Devereux in 1984 as a speech language pathologist at Devereux Pennsylvania’s Leo Kanner Center and Health Services Units. During his tenure at Devereux, Shurer has held various management and administrative positions, including: residential program supervisor, director of quality improvement/regulatory affairs, program director - information resources, director of clinical technologies and national director of information resources. He has served in his current role since 2013.

Before joining our organization, Shurer was a speech language pathologist at Elwyn - a human services organization serving disabled and disadvantaged individuals.

Shurer has earned the following academic degrees: Bachelor of Science in Communications Disorders from Pennsylvania State University; a Master of Arts in Speech Language Pathology from George Washington University; and a Master of Science in Information Science from Pennsylvania State University. He has presented on a variety of topics - including clinical technology best practices, business continuity, technology planning, data analysis and reporting, and system implementation strategies during national/regional conferences.

He is a former board member of the Arc of Chester County.


Gwendolyn B. Skinner
Vice President of Operations

Gwendolyn B. Skinner serves as Devereux’s vice president of operations. In this role, she is responsible for overseeing the day-to-day operations - including all programs and services for children and - adults at our Florida and Georgia centers. She has been in this role since May 2017.

Skinner - who has more than 30 years of behavioral healthcare experience - joined Devereux in 2009 as executive director of our Devereux Georgia center. Along with her team, she helped transform the center into a highly successful campus with significant clinical and operational expertise. Prior to Devereux, she served as the director for the Georgia Department of Human Resources' Division of Mental Health, Developmental Disabilities and Addictive Diseases and the Deputy Commissioner of the Georgia Department of Juvenile Justice.

Skinner has earned the following academic degrees: a Bachelor of Arts in Sociology, a Master of Education in Guidance and Counseling and a Master of Education in School Psychometry from the State University of West Georgia; and Education Specialist in Counseling Psychology and Education Specialist in School Psychology from Georgia State University.

She is a Nationally Certified School Psychologist and Licensed Marriage and Family Therapist. Skinner also has presented at the state and national levels, focusing on the areas of juvenile justice, mental illness, developmental disabilities and addictive diseases. In addition, she and her husband have served as foster parents to more than 40 children.


Gwen Skinner

Fran Wagner
Vice President of Audit and Compliance

As Vice President of Audit and Compliance, Fran Wagner is responsible for the development and implementation of our organization’s Corporate Compliance and HIPAA privacy programs, management of the Internal Audit department, and the development and implementation of an internal Medicaid Compliance Review program.

Wagner joined Devereux in 1988 as an internal auditor and, since that time, she has served in positions of increasing responsibility, including financial director of Devereux Pennsylvania’s Children’s Behavioral Health Center, as well as several acting roles for the center director of operations, director of outpatient services and director of quality management. In 2005, she was promoted to the position of national director of Contracts and Accounts Receivable, where she oversaw cost reporting and multi-center contracting, and was as a trainer, consultant and advocate for the Revenue and Accounts Receivable functions at all center locations.

Prior to joining Devereux, she was a supervisor for a CPA firm performing Medicare and Medicaid cost report audits.

Wagner holds a Bachelor of Science in Business Administration Accounting from Widener University and is a Certified Public Accountant.


Fran Wagner